docs: add roadmap plans for domain stats, auto rate limit, and send-log retention

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursor/rules/panel-ui-system.mdc

@@ -0,0 +1,22 @@
+---
+description: Panel UI mockups use the design system primitives, not a reskin of live templates.
+globs: docs/assets/panel-ui/**
+alwaysApply: false
+---
+
+# Panel UI system
+
+Source of truth: [docs/assets/panel-ui/system.html](docs/assets/panel-ui/system.html) and `system.css`.
+
+Do not copy `internal/web/view/templates` into mockups. Do not mark `<main>` as `ops`/`form` to pick width. Do not fix empty columns, Host/Type height, or split Save/Delete with one-off CSS.
+
+Compose screens from `stack`, `pair`, `measure`, `fill`, `field-row`, `actions-row`:
+- Two peer jobs → `pair` (one child shrinks to `measure`).
+- Tables/logs/DNS → `fill` (nowrap + overflow-x on the card). Add-to-list is a `measure` row inside that card, not a second card above it.
+- Confirm/login/user form → `measure`.
+- Host ‖ Type and two equal inputs → `field-row` (shared grid row, not two `.code` paddings).
+- Save + Delete → `actions-row` inside the card; never submit inside `<form>` and danger after `</form>`.
+- Danger zone is the second column of the last `pair`, never a full-width `fill`.
+- Card chrome is title + optional `?` + body + actions. Help is not sprinkled later.
+- Phone: `pair` stacks; `field-row` does not; tables become lists.
+- One screen is one HTML file. Shared chrome is `shell.js`. Do not put every screen in one hash-SPA.

.github/workflows/release.yml

@@ -1,11 +1,9 @@
 name: release
 
 # Publishes an immutable, version-tagged image on ghcr.io (spec 10.1).
-# Ordinary commits do not publish anything — only a pushed tag matching
-# vX.Y.Z does. That tag is the single source the version comes from: it goes
-# into both the image tag and the panel binary's -ldflags version, so the two
-# can never drift apart (the invariant restore's version check in spec 7.5.A
-# depends on).
+# Ordinary commits and bare git tag pushes do not publish anything. A published
+# GitHub Release runs this workflow directly (same pattern as gosentry / imap-scrub).
+# You can also run it manually via workflow_dispatch with an explicit SemVer X.Y.Z.
 #
 # Native per-architecture builds (see docs/development.md), not qemu:
 # running the full Postfix/OpenDKIM stack under emulation for the e2e gate
@@ -13,14 +11,18 @@ name: release
 # tag on its own native runner; a merge job then combines them into the one
 # manifest tag documented in deploy/docker-compose.yml. "test, then push" (not
 # push-by-digest then test) is deliberate: it means the bytes that get tagged
-# are exactly the bytes that passed e2e, at the cost of per-arch tags lingering
-# in the registry as a side effect (harmless — the version tag's immutability,
-# spec 10.1, is about that tag, not these).
+# are exactly the bytes that passed e2e. Per-arch tags are pushed only so
+# imagetools can assemble the multi-arch manifest; merge removes them from GHCR
+# so operators see a single version tag (spec 10.1).
 on:
-  push:
-    tags:
-      - "v[0-9]+.[0-9]+.[0-9]+"
+  release:
+    types: [published]
   workflow_dispatch:
+    inputs:
+      version:
+        description: "Image version as X.Y.Z (no v prefix)."
+        required: true
+        type: string
 
 permissions:
   contents: read
@@ -32,9 +34,25 @@ jobs:
     outputs:
       version: ${{ steps.version.outputs.version }}
     steps:
-      - name: Derive version from tag
+      - name: Derive a SemVer X.Y.Z version
         id: version
-        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
+        env:
+          INPUT_VERSION: ${{ github.event.inputs.version }}
+          RELEASE_TAG: ${{ github.event.release.tag_name }}
+          EVENT_NAME: ${{ github.event_name }}
+        run: |
+          set -euo pipefail
+          if [ "$EVENT_NAME" = "release" ]; then
+            raw="${RELEASE_TAG:-}"
+          else
+            raw="${INPUT_VERSION:-}"
+          fi
+          raw="${raw#v}"
+          if ! [[ "$raw" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            echo "::error::release version is not SemVer X.Y.Z (event=${EVENT_NAME}; tag=${RELEASE_TAG:-} input=${INPUT_VERSION:-}). Refusing to publish ghcr.io/${{ github.repository }}:${raw:-?}"
+            exit 1
+          fi
+          echo "version=${raw}" >> "$GITHUB_OUTPUT"
 
   build:
     needs: prepare
@@ -49,6 +67,8 @@ jobs:
     runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: v${{ needs.prepare.outputs.version }}
 
       - uses: docker/setup-buildx-action@v3
 
@@ -113,6 +133,10 @@ jobs:
     needs: [prepare, build]
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: v${{ needs.prepare.outputs.version }}
+
       - uses: docker/setup-buildx-action@v3
 
       - name: Log in to ghcr.io
@@ -152,3 +176,29 @@ jobs:
             attempt=$((attempt + 1))
             backoff=$((backoff * 2))
           done
+
+      - name: Remove per-arch tags from GHCR
+        # Side-effect tags for imagetools assembly only — not part of the public
+        # version surface (deploy/docker-compose.yml pins X.Y.Z, not X.Y.Z-amd64).
+        # imagetools has no "rm" subcommand; delete via the GitHub Packages API.
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          version="${{ needs.prepare.outputs.version }}"
+          owner="${{ github.repository_owner }}"
+          pkg="${{ github.event.repository.name }}"
+          api="/users/${owner}/packages/container/${pkg}/versions"
+          for suffix in amd64 arm64; do
+            tag="${version}-${suffix}"
+            mapfile -t ids < <(gh api "$api" --paginate \
+              --jq ".[] | select([.metadata.container.tags[]] | index(\"${tag}\")) | .id")
+            if [ "${#ids[@]}" -eq 0 ]; then
+              echo "no GHCR package version for tag ${tag}"
+              continue
+            fi
+            for id in "${ids[@]}"; do
+              echo "deleting GHCR package version ${id} (tag ${tag})"
+              gh api -X DELETE "${api}/${id}"
+            done
+          done

CHANGELOG.md

@@ -7,6 +7,431 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
 
 ### Added
 
+- docs: roadmap candidates **send-log-retention** (panel Settings for delivery
+  journal retention) and **domain-stats-auto-ratelimit** (30-day send stats per
+  domain/application, auto level-2 rate limit from avg × multiplier) — plans in
+  [docs/plans/](docs/plans/).
+
+- Postfix queue under `/data/postfix/queue` — deferred and active mail survive
+  container recreate and are included in full backups.
+- Full backup archives the whole operator project: `data/`, `docker-compose.yml`,
+  `.env`, and `certs/` (requires `.:/selfpost-deploy:ro` in compose). Restore
+  by unpacking into an empty project directory.
+
+### Changed
+
+- **Breaking:** full-backup archive layout — paths are prefixed with `data/`;
+  deploy files sit at the archive root. Old flat archives restore with
+  `tar xzf backup.tar.gz -C ./data` as before.
+- docs: operator guide, architecture, security, and backup UI updated for
+  self-contained backups and persistent queue.
+
+- docs: HTML mockups for a full panel UI refresh
+  ([docs/assets/panel-ui/](docs/assets/panel-ui/index.html)) — current screens,
+  agreed and candidate roadmap surfaces (queue-retries, inbound-relay,
+  dmarc-reports, panel-docs), a hybrid width (ops pages use the window, forms
+  keep a reading measure), and a 390px emergency layout. The stamp and brick
+  palette stay; extra nav icons are proposals only. Design artefact; the
+  running panel is unchanged.
+
+### Changed
+
+- docs: panel UI mockups after review — Status restored to live readings
+  (queue line, PTR, machine/process tables, Configuration); inbound MX DNS
+  check, recipient mode (list or any), and Danger zone beside recipients;
+  Backup and Settings as two-column ops pages; Save and Delete user on one
+  row; help «?» on domain cards; Host/name ‖ Type height matched to the live
+  panel (`b0ebe06`).
+
+- docs: panel UI design system and mockups rebuilt as separate pages
+  (`system.html`, `status.html`, `domain.html`, …), not one hash sheet.
+  Regions are `stack` / `pair` / `measure` / `fill`; Host ‖ Type is
+  `field-row`; Save + Delete is `actions-row`. Shared chrome is `shell.js`.
+
+- docs: panel UI mockups — add-domain sits in the list card (Domains and
+  Inbound); DMARC candidate screens drill into a domain roll-up and a
+  parsed aggregate report (aligned vs third-party fail), not a hub-only
+  summary.
+
+## [1.3.0] - 2026-08-14
+
+Security and quality after 1.2.5: domain-admin send-log authorization,
+fail-closed sign-in and application delete, level-2 rate-limit race fix,
+restore Resync, expanded tests, operator docs, release CI, and OFL for IBM
+Plex. Upgrading from 1.2.x is a tag bump; no migration.
+
+### Added
+
+- licence: the SIL Open Font License 1.1 text now travels with the IBM Plex
+  WOFF2 files (`internal/web/view/static/OFL.txt`). The image copies it next
+  to LICENSE and NOTICE under `/usr/share/doc/selfpost/`; the panel serves it
+  at `/static/OFL.txt`. OFL requires the licence to accompany the font.
+
+- docs: agreed roadmap item **queue-retries** — show this Postfix's retry
+  policy (first delay, backoff cap, queue lifetime) on Mail queue and on a
+  delivery's history, reading `postconf -h` once at panel start so a manual
+  override is visible. Plan: [docs/plans/queue-retries.md](docs/plans/queue-retries.md).
+  Explanation only; no attempt counter and no panel knobs. Not yet
+  implemented.
+
+### Security
+
+- The independent security review of the send-log authorization and
+  fail-closed fixes below (code-review plan § P7; reviewer model ≠ author
+  model) found no further issues: the domain scope holds on every query path,
+  a rate-limit refusal cannot consume window budget, and each failure residue
+  of the reordered application delete fails safe. Nothing was added to
+  [docs/security.md](docs/security.md) § Accepted risks; the review is
+  recorded in that file's header.
+
+### Fixed
+
+- test (e2e): send-log status scrapers follow the badge markup in
+  `deliveries_rows`. The release gate still looked for bare `<td>sent</td>`
+  after the panel started rendering status as `<span class="st st-*">` badges,
+  so `send_verify_dkim_and_status` timed out even when mail was delivered and
+  logged. A handler regression test catches this drift in `go test ./...`
+  without Docker.
+
+- security (panel): the Deliveries list is scoped to a domain administrator's
+  assigned domains for every number of assignments. Previously the send log was
+  narrowed only when exactly one domain was assigned, so an administrator with
+  none or with two or more read every domain's rows (sender, recipient, subject)
+  on the list and its polled fragment. The domain scope is now an `IN`
+  constraint carried by the store query — a filter that states no scope returns
+  nothing — and the `domain` and `app` query parameters are checked against the
+  principal's own domains and applications before the query runs, so a
+  hand-written URL cannot widen the scope. Global administrators are unaffected.
+
+- mail (level-2 rate limit): the ceiling is no longer overshot by messages that
+  arrive at the same instant. The milter counted the stored and in-flight
+  messages and reserved its own slot in two separate steps, so several SMTP
+  sessions could pass the same check before any of them had reserved. Counting
+  and reserving now happen as one operation, and the ceiling is handed out
+  exactly as many times as configured. Postfix's level-1 limit remains the
+  backstop and the level-2 check stays fail-open on store errors.
+
+- panel (sign-in): a session that cannot be written to the database no longer
+  produces a session cookie. The login used to log the failure, set the cookie
+  and redirect to the dashboard, leaving the browser looking signed in while
+  every request bounced back to `/login`; it now fails closed with an error on
+  the sign-in page.
+
+- panel (applications): deleting an application removes its SASL credentials
+  before its registry row. If `saslpasswd2` fails, the application stays listed
+  and the delete can be retried, instead of leaving a hidden account that could
+  still authenticate to Postfix. This matches the order domain deletion already
+  used.
+
+- panel (GUI): a rejected rate-limit change on a domain's page now renders on
+  the danger surface (`.flash.error`) instead of the success one — it was
+  green with red text, reading as good news. Deleting a panel user now goes
+  through a confirmation page, the same pattern as domain deletion, instead of
+  a plain submit button next to Save with no confirmation at all.
+
+- panel (restore): after a backup is extracted and the version guard passes,
+  the panel runs one mail-path Resync on the first boot — OpenDKIM's tables
+  and Postfix's sender map are re-derived from SQLite and the daemons are
+  reloaded, so drift between the archive and the database is healed before
+  mail flows. Later starts skip that step; the Status page Reload button runs
+  the same Resync on demand. The `internal/backup` package comment now matches
+  this behaviour.
+
+- ci (GHCR): per-arch package tags (`X.Y.Z-amd64`, `X.Y.Z-arm64`) are dropped
+  after the manifest merge via the GitHub Packages API. The merge job had called
+  `docker buildx imagetools rm`, which is not a valid subcommand — cleanup failed
+  with a warning and the side-effect tags stayed in the registry.
+
+### Changed
+
+- docs: operator and as-built docs aligned with the code after a full
+  pass — [architecture.md](docs/architecture.md) route table now marks
+  **global** routes (404 for domain administrators) and documents the
+  one-time restore Resync in Persistence; session/password and restore-session
+  wording corrected in [guide.md](docs/guide.md) and architecture (own-password
+  change vs admin reset, no "logout everywhere", immediate session restore on
+  the next request, PTR cache ≈1 min, decrypt has no version check, restore
+  Resync on first boot, domain add/delete/import and `POST /reload` global-only,
+  Settings DMARC global-only); [README.md](README.md) port-587 and quick-start
+  volume wording fixed; [security.md](docs/security.md) CSRF ADR points at
+  `authz.go` for route gating. No behaviour change.
+
+- docs: [guide.md](docs/guide.md) reorganised into **Installation**, **Instance
+  administration**, and **Domain administration** — DNS setup, operations,
+  rate limiting, and backup sections follow the instance/domain boundary
+  instead of mixing them. **Installation** now reads Ports → Local trial →
+  Initial setup → Full deployment (with the fixed image tag nested under it) →
+  Environment variables → Reverse proxy; the step-by-step production deploy and
+  per-proxy TLS commands move here from README's "Reference deploy" (README
+  keeps a short pointer). Internal (non-operator) environment variables move
+  to [architecture.md](docs/architecture.md) § Configuration; the guide keeps
+  a one-line pointer. **Full backup and restore** gains worked commands for
+  in-place restore, move-to-a-new-host, and encrypted-backup decrypt-first,
+  plus the version-mismatch error text. README anchors updated for the new
+  headings. No behaviour change.
+
+- docs: the 2026-08-13 full-tree review plan is complete — every phase (P0–P7)
+  is closed — and `docs/plans/code-review.md` is deleted per its own exit
+  criteria (history in git and in this file). The plan covered architecture,
+  quality, GUI, tests, and licence work; P0 was domain-admin send-log
+  authorization. The [roadmap](docs/roadmap.md)'s recommended order returns to
+  **queue-retries** and then **inbound-relay**; it still records
+  **schema-squash** (replace the 1.x SQLite migration chain with a 2.x baseline;
+  not a reason to cut a major on its own).
+
+- licence: [NOTICE](NOTICE) tells modifiers to update `SourceURL` in
+  `internal/legal/legal.go` (the value the panel footer actually injects), not
+  `layout.html`. Per-file `SPDX-License-Identifier` headers on the two command
+  packages were dropped so the tree is consistent; AGPL-3.0 does not require
+  them ([development.md](docs/development.md) § External libraries). Deleted the
+  completed `docs/plans/logrotate-mode.md` (history in git and
+  [1.2.3](#123---2026-08-12)).
+
+- ci: the release image is published only for a **published** GitHub Release
+  (`vX.Y.Z`) or a manual `workflow_dispatch` with an explicit SemVer version — a
+  bare git tag push no longer starts the build. `release.yml` listens for
+  `release: published`, checks out that tag (not `main` HEAD), e2e-gates each
+  native arch build, merges `X.Y.Z-amd64` and `X.Y.Z-arm64` into one manifest,
+  then removes the per-arch tags from GHCR via the GitHub Packages API so
+  operators see only `ghcr.io/mixeme/selfpost:X.Y.Z` (what
+  `deploy/docker-compose.yml` pins). A dispatch whose version input is missing
+  or not `X.Y.Z` fails in `prepare`. [development.md](docs/development.md)
+  documents draft vs published releases, why deleting a release tag converts
+  it back to draft, and Gitea → GitHub tag-mirror pitfalls (do not prune release
+  tags on GitHub; a mirrored `v1.0.0` still runs that tag's `on: push: tags`
+  workflow).
+
+- test: the authorization and sign-in surfaces that had no tests now have them.
+  The login limiter is covered for its ceiling, its per-address scope, the reset
+  at the end of a window and the sweep that keeps finished buckets out of
+  memory; sign-in for a successful session, for refusals that do not reveal
+  which usernames exist, and for a lockout that a correct password cannot
+  bypass; the one-time setup link for creating the first administrator, closing
+  afterwards, rejecting a wrong or expired token, and refusing credentials the
+  panel would not accept later. Every global-only route (`/users`, `/backup`,
+  domain import, `/status`, `/mail-queue`, `/system-log`, domain add and delete,
+  reload) is checked to answer a domain administrator — and a request with no
+  principal — with 404, the check that would have caught the send-log leak.
+
+- test: restore is covered as the operator performs it, in process. A backup is
+  downloaded from a running panel through `POST /backup` (plain and encrypted),
+  unpacked the way `tar -xzf` unpacks it onto the `/data` bind mount, and a
+  second panel is booted on the result through the startup order the panel
+  itself uses — version guard, database, one Resync when restoring, then
+  services and the HTTP application. The restored panel shows the domain and
+  journal the archive carried, finds the DKIM key, SASL database and Postfix
+  sender map where its configuration says they are, does not reopen the
+  one-time setup link, and still honours a session that predates the backup.
+  Drifted on-disk maps are healed by that Resync step
+  (`TestResyncAfterRestoreHealsDriftedMaps`). A data directory left by another
+  version is refused with both versions named and the manifest kept. `serveHTTP`
+  is split in two so that composition can be started without binding a port; no
+  behaviour change.
+
+- test (e2e): the CoreDNS image is pinned to `1.14.6` instead of `latest`, so
+  the release gate cannot change under a commit between two runs. The level-1
+  rate-limit failure message quoted `RATE_LIMIT_MESSAGES_PER_IP=5` while the
+  stand sets `50`.
+
+- ci: gofmt on eight files that failed the formatting workflow check (panel
+  config, DNS check, domain transfer export, rate-limit tests, auth principal,
+  domain and delivery handlers, web package doc comment).
+
+- panel (templates): the repeated Host/Type/Value DNS record markup on a
+  domain's page and the duplicated credentials form on Settings are now
+  shared partials (`host_type`, `host_type_copy`, `field_value`,
+  `field_values`, `credentials_fields`) instead of copy-pasted blocks. No
+  behaviour or visible change.
+
+- panel (GUI, accessibility): the Deliveries fragment's `hx-get` and pagination
+  links now `urlquery`-encode the `domain`/`app` filters instead of splicing
+  them into the query string raw. The four polled regions (deliveries rows,
+  status, mail queue, system log) carry `aria-live="polite"` so a screen
+  reader announces the refreshed content.
+
+- docs: [security.md](docs/security.md) accepted risks now note that
+  `data-confirm` prompts on destructive forms are JavaScript-only — with
+  JavaScript disabled the form submits immediately, the same as before the
+  prompts existed — and why that is acceptable (the prompt is a mis-click
+  guard, not an authorization boundary).
+
+- docs: security and operator docs updated for the panel that has shipped
+  global administrators and domain-admins since 1.2.0. The CSRF ADR in
+  [security.md](docs/security.md) no longer argues from "single-user"; it now
+  states that cross-user CSRF between panel roles is not the threat the origin
+  check defends against, and gives a new revisit trigger. Dropped the
+  unimplemented "or argon2" alternative for the password hash.
+  [guide.md](docs/guide.md) documents the Users page and the two roles,
+  level-2 rate limiting's fail-open behaviour, and that a domain-admin can
+  export working SASL passwords for domains assigned to them.
+  [architecture.md](docs/architecture.md) gains `/license` and the
+  `/account` → `/settings` redirect in the route table (later expanded for
+  RBAC in the doc-alignment pass above). Corrected stale
+  `admin.dmarc_report_email` references in
+  [roadmap.md](docs/roadmap.md) and
+  [docs/plans/dmarc-reports.md](docs/plans/dmarc-reports.md) to the setting's
+  actual home after migration `0005`. No behaviour change.
+
+- panel: code-review P6 cleanup — the unused `auth.RequireGlobal` middleware is
+  gone (handlers already call `requireGlobal`); the settings route handler is
+  named `HandleSettings` in `handlers_settings.go`; domain lists for a
+  domain-admin now come from `ListDomainsForUser` in SQL instead of loading
+  every domain and filtering in Go; the login and setup rate limiters sweep
+  expired buckets on a timer and cap the map at 4096 keys; the five
+  show/hide field helpers in `panel.js` are one rule table; DMARC copy no
+  longer promises in-panel report reception in a future release — SelfPost
+  does not receive inbound mail.
+
+## [1.2.5] - 2026-08-13
+
+Rate-limit form polish after 1.2.4. Upgrading is a tag bump; no migration.
+
+### Changed
+
+- panel: rate-limit forms refined — level-1 backstop as muted copy on the
+  domain settings form (`N messages / Ws — Settings`) and in message-limit
+  labels (`max N`); Settings shows the L1 ceiling in a code-row. Domain,
+  application, and Edit-toggle limit state use the shared `st` badge instead of
+  bold text or parenthetical copy. Address mode and trusted-IP override columns
+  carry muted leads and matched control height; trusted-IP help sits under the
+  IP field. Domain settings pairs DMARC reports with the level-2 rate limit
+  using CSS subgrid so titles, fields, and Save / Remove buttons line up across
+  columns.
+
+## [1.2.4] - 2026-08-12
+
+Level-2 rate-limit semantics inverted after 1.2.3, plus a small DNS field
+height fix. Upgrading is a tag bump; no migration.
+
+### Changed
+
+- rate limiting (level 2): domain ceilings apply to every client IP (no IP
+  allowlist). An application ceiling with trusted IPs is an override
+  **above** the domain limit (still ≤ level 1) and skips the domain check for
+  those IPs; without IPs the application override is inactive. When no domain
+  ceiling is set, non-privileged senders use level 1 only. The panel shows the
+  level-1 backstop on domain/application forms and Settings, rejects maxima
+  above level 1, and requires an application override to exceed the domain
+  maximum. Operator guide and architecture updated.
+
+### Fixed
+
+- panel: on the domain DNS status grid, the Type (TXT) field height matches
+  the Host fields.
+
+## [1.2.3] - 2026-08-12
+
+Domain detail layout and panel polish after 1.2.2. Upgrading is a tag bump; no
+migration.
+
+### Changed
+
+- panel: the domain detail page is wide with paired cards (DKIM+SPF ‖ DMARC;
+  connection settings ‖ add application; export ‖ danger). DNS status,
+  Applications and Domain settings are full-width. DNS status is two rows
+  (DKIM ‖ SPF, DMARC ‖ report authorization) with Host ‖ Type (narrow TXT)
+  and a Value label when records are present. Domain settings pairs DMARC
+  report mode with the optional level-2 domain rate limit; application Edit
+  opens address mode and an optional level-2 application rate limit side by
+  side (with a note that domain level-2 and global level-1 still apply); the
+  custom `rua=` address field is shown only for Custom address. The in-nav
+  “On this page” section index is removed. Shorter blurbs; *Sending server
+  settings* renamed **Connection settings**.
+- panel: Domains list — **Add domain** sits beside the domain field; the
+  lead blurb under the form is dropped.
+- panel: page URLs, browser titles, and headings are aligned — **Settings** is
+  now `/settings` (legacy `/account` redirects with 308); the domains list title
+  is `SelfPost — domains`; Status, Users, and user create/edit titles match their
+  nav labels and `<h1>` text; the backup page title is `SelfPost — backup &
+  migration` to reflect domain import as well as full backup. Operator guide and
+  architecture route tables updated.
+
+### Fixed
+
+- image: `mail.log` rotation no longer silently stops when the build context
+  ships `logrotate-mail.conf` with group/other write bits (common after a
+  Windows checkout sync). Runtime `COPY --chmod` pins config and script modes
+  in the Dockerfile; `logrotate-loop.sh` refuses a config logrotate would
+  ignore. E2e checks mode `644`, forced rotation, and a group-writable context
+  build.
+
+## [1.2.2] - 2026-08-12
+
+Status page layout after 1.2.1: paired cards in a wide column, denser machine
+and check copy, and a user-form checkbox fix. Upgrading is a tag bump; no
+migration.
+
+### Changed
+
+- panel: **Status** is wide again so paired cards fill the column. Layout:
+  Overall; Machine ‖ Processes; Mail queue ‖ TLS certificate; Milter sockets ‖
+  Hostname / reverse DNS; Configuration. Dropped lead blurbs on Machine, TLS
+  certificate, and Hostname (and Hostname's trailing detail line); milter
+  socket paths omitted from the table; queue link reads **View queue**; milter
+  ok detail is `Listening` without a trailing period and sits in its own
+  Detail column beside the status badge; CPU detail is only core and thread
+  counts (no load average); memory detail is `N used of M` without the
+  «available to new work» clause; network detail lists per-interface totals
+  only (rates stay in the Usage column). No «On this page» section index —
+  the paired layout is short enough. Hostname stays in the polled fragment so
+  the pair survives HTMX refresh. In-panel docs for the removed blurbs filed
+  as roadmap `panel-docs`.
+
+### Fixed
+
+- panel: cards inside `.split` used `margin: 0 auto`, which in a CSS grid
+  shrinks each card to its content and centres it in the track instead of
+  filling half the row. Side margins are cancelled for `.split > .card`
+  (Status, Settings, and a delivery's message/history).
+- panel: on the user create/edit form, **Assigned domains** checkboxes stacked
+  the box above the domain name (and stretched it full-width) because the form's
+  block-label and full-width input rules applied to them. Checkbox rows now use
+  the shared `label.check` layout; the fieldset has matching spacing.
+
+## [1.2.1] - 2026-08-11
+
+Panel refinements after 1.2.0: navigation icons, status-badge centreing,
+drill-down back-link placement, and safeguards for the sole global
+administrator. Upgrading is a tag bump; no migration.
+
+### Fixed
+
+- panel: status badge text sat low in the box (and below the heading or label
+  beside it). IBM Plex Mono sits low in its em square; the previous top-heavy
+  padding made that worse. Bottom padding is now heavier so the word centres
+  optically.
+- panel: the **Users** navigation icon was two full silhouettes with staggered
+  baselines, so the pair looked lopsided at 16 px. The rear person is now a
+  right-side crescent (head + shoulder) behind a full front silhouette aligned
+  with `icon-account`.
+- panel: the **Settings** navigation icon was a sun-with-rays (circle plus
+  spokes), not a gear. It now uses a toothed cog so it matches the other
+  session icons and the 1.2.0 release note.
+- panel: the user create/edit form placed «Back to users» at the bottom of the
+  card instead of under the heading like the delivery, domain, and domain-delete
+  pages. A shared `back_link` template now renders every drill-down up-link, and
+  `TestDrillDownPagesPlaceBackLinkAboveContent` guards its position.
+
+### Changed
+
+- panel: the user edit form disables role change and delete for the only global
+  administrator, with a short note, instead of allowing the action and showing
+  an error on submit.
+- panel: the user create/edit form hides **Assigned domains** when the role is
+  global administrator, since that role manages every domain anyway.
+- panel: **Settings** shows panel credentials and DMARC aggregate reports side
+  by side for global administrators (the same `.split` layout as a delivery's
+  message and history). Domain-scoped users keep the single narrow card.
+
+## [1.2.0] - 2026-08-11
+
+The second MINOR after 1.0.0: domain administrators with per-domain scope, a
+panel visual refresh on the SelfPost palette, and refinements to navigation and
+the send log. Upgrading runs one SQLite migration (`0005_panel_users`); the
+single administrator becomes a global user.
+
+### Added
+
 - panel: **domain-admin role** — global administrators manage panel users and
   assign domains; domain administrators see only their domains (applications,
   DKIM/DNS, per-domain DMARC, deliveries, export, L2 limits). Status, full
@@ -15,28 +440,49 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
   administrator into a global user; sessions and full backup restore carry users
   and domain bindings.
 
+### Fixed
+
+- Docker build: `LICENSE` is no longer excluded by `.dockerignore`, so the
+  runtime image can copy it into `/usr/share/doc/selfpost/` as AGPL requires. A
+  clean build failed once the cached layer was invalidated.
+- panel: on signed-in pages with a narrow card (**Settings**, the user form)
+  the heading, flash, card and footer now share one left edge. `.card.narrow`
+  had overridden only `max-width` while `main > *` still centred siblings on
+  the 48rem measure, so the card floated 12rem to the right of the title.
+  `main:has(> .card.narrow) > *` keeps the stack on 24rem without narrowing
+  the column, so the navigation stays put; login/setup are unchanged.
+
 ### Changed
 
+- panel: navigation session icons are distinct — **Settings** uses a gear,
+  the signed-in user line carries the single-user icon, and **Users** a
+  two-person group mark instead of the same account silhouette for all three.
 - panel: `/` redirects domain administrators to `/domains`; global users still
   land on `/status`. Navigation hides global-only sections for domain
   administrators.
+- panel: **Sign out** in the navigation column uses the same type size and
+  weight as the page entries above it; only the red tint and border mark it as
+  destructive.
 - panel: **visual style** brought in line with the SelfPost mark — brick accent
   and warm paper in place of the blue-on-cool-grey defaults, IBM Plex Sans and
   IBM Plex Mono served by the panel itself, squarer corners, and column
   headings, status badges and small labels set in the mono face. Light and dark
-  schemes both keep their contrast; no page, control or workflow changed. A page
-  whose only card is the narrow one now takes its heading and footer down to the
-  card's width instead of splitting them across the wider measure, and the send
-  log stops breaking `Details` and `deferred` across two lines when a row is
-  tight.
+  schemes both keep their contrast; no page, control or workflow changed. The
+  send log stops breaking `Details` and `deferred` across two lines when a row
+  is tight. Badge padding and line-height are tuned so lowercase labels sit
+  centred in the box. The three WOFF2 files add ~76 KB to the image and are
+  served from the panel's own origin, so the Content-Security-Policy is
+  unchanged (`default-src 'self'`).
 - panel: the send log's **status is a badge**, in the same ok/warn/error/unknown
   colours the status page and the DNS checks use, instead of the one place in
   the panel where a status was bare text. The mapping is the one the delivery
   page already applied — `sent` is ok, `deferred` a warning, `bounced` and
   `rejected` errors, `queued` unknown because nothing has gone wrong yet.
-  The three
-  WOFF2 files add ~76 KB to the image and are served from the panel's own origin,
-  so the Content-Security-Policy is unchanged (`default-src 'self'`).
+- docs: [roadmap.md](docs/roadmap.md) and [product.md](docs/product.md) no
+  longer list domain-admin or visual-style as open work — both ship in this line.
+  Completed plan files (`domain-admin`, `visual-style`, `web-split`,
+  `narrow-page-alignment`) are removed; history stays in git and the entries
+  above. Inbound relay is the main agreed 1.x+ item left on the roadmap.
 
 ## [1.1.0] - 2026-08-10
 

NOTICE

@@ -10,8 +10,8 @@ Corresponding Source for the published releases is at:
 
 If you modify SelfPost and let users interact with it over a network,
 AGPL-3.0 §13 requires you to offer them the Corresponding Source of
-your modified version. Update the Source link in the panel footer
-(internal/web/view/templates/layout.html) so it points at your sources.
+your modified version. Update SourceURL in internal/legal/legal.go
+so the panel footer points at your sources.
 
 Third-party software included in this distribution
 ----------------------------------------------------
@@ -24,6 +24,9 @@ htmx 2.0.4 (internal/web/view/static/htmx.min.js)
 IBM Plex Sans / IBM Plex Mono
   Copyright © 2017 IBM Corp., with Reserved Font Name "Plex"
   Licence: SIL Open Font License 1.1
+  Full text: internal/web/view/static/OFL.txt
+    (also /usr/share/doc/selfpost/OFL.txt in the image, and
+    /static/OFL.txt from the control panel)
   https://github.com/IBM/plex
   Distributed unmodified as three latin-subset WOFF2 files served by the
   control panel:

README.md

@@ -24,9 +24,9 @@ send log and DNS checks in the panel, encrypted backups.
 - Web panel — domains, applications, deliveries, mail queue, system log, backup
 - Multi-domain relay — each SASL application is bound to one sending domain
 - DNS status checks (PTR, SPF, DKIM, DMARC) with in-panel re-check
-- Two-level rate limiting — IP backstop (Postfix) and per-domain/per-app limits
+- Two-level rate limiting — IP backstop (Postfix), per-domain ceilings, and trusted-IP app overrides
 - Full-server backup and single-domain export/import (optional password encryption)
-- Single Docker image; data in a `./data` bind mount
+- Single Docker image; production data in a `./data` bind mount (the quick start below uses a named Docker volume instead)
 
 ## Documentation
 
@@ -76,14 +76,15 @@ For every domain you add in the panel:
 - [ ] DKIM TXT record (value shown on the domain page)
 - [ ] DMARC `_dmarc` TXT record
 
-See [DNS setup](docs/guide.md#dns-setup) in the operator guide.
+See [Domain-level DNS](docs/guide.md#domain-level-dns-spf-dkim-dmarc) in the operator guide.
 
 ## Quick start
 
 > **First boot — create the admin account.** On a fresh container SelfPost prints
 > a **one-time setup URL** (valid ten minutes). Open it in a browser to choose
 > the administrator username and password. Until you do, the panel has no login.
-> Production deploy: [step 3](#3-start-selfpost).
+> Production deploy: [Full deployment](docs/guide.md#full-deployment) in the
+> operator guide.
 
 One container, panel at `http://127.0.0.1:8080` — no reverse proxy, no TLS
 files, no compose files. Good for clicking through the UI on your machine;
@@ -95,7 +96,7 @@ docker run --rm -d --name selfpost-try \
   -e SELFPOST_HOSTNAME=mail.local.test \
   -e PANEL_COOKIE_SECURE=false \
   -v selfpost-try-data:/data \
-  ghcr.io/mixeme/selfpost:1.1.0
+  ghcr.io/mixeme/selfpost:1.3.0
 ```
 
 **Get the setup URL** (pick one):
@@ -129,136 +130,17 @@ TLS PEM files at `./certs` (read by Postfix on 465/587). The panel is reached
 only through a reverse proxy on 443 — port 8080 is bound to localhost in the
 default compose file.
 
-| Artefact | Path |
-|---|---|
-| Compose file (fixed image tag) | [deploy/docker-compose.yml](deploy/docker-compose.yml) |
-| Environment template | [deploy/.env.example](deploy/.env.example) |
-| Apache vhost (recommended) | [deploy/apache/selfpost-vhost.conf](deploy/apache/selfpost-vhost.conf) |
-| nginx | [deploy/nginx/](deploy/nginx/) |
-| Caddy | [deploy/caddy/](deploy/caddy/) |
-| Traefik | [deploy/traefik/](deploy/traefik/) |
+Full walkthrough — fetching the base files, setting up a reverse proxy and
+TLS (Apache/nginx/Caddy/Traefik), starting the container, and wiring up
+DNS — lives in the operator guide's [Full
+deployment](docs/guide.md#full-deployment) section, with proxy-specific
+commands under [Reverse proxy](docs/guide.md#reverse-proxy-mandatory).
 
-### 1. Fetch the base files
-
-```sh
-mkdir -p selfpost/data selfpost/certs && cd selfpost
-curl -O https://raw.githubusercontent.com/mixeme/selfpost/main/deploy/docker-compose.yml
-curl -O https://raw.githubusercontent.com/mixeme/selfpost/main/deploy/.env.example
-cp .env.example .env
-```
-
-Edit `.env` — at minimum set `SELFPOST_HOSTNAME` to your mail hostname (bare
-FQDN, e.g. `mail.example.com`). It must match the PTR record you request from
-your provider and the certificate your proxy will obtain.
-
-### 2. Reverse proxy and TLS
-
-Pick one proxy. In every case the proxy terminates HTTPS for the panel; the
-same certificate must end up under `./certs` as `fullchain.pem` and
-`privkey.pem` so Postfix can serve it on 465 (and 587 if enabled). The proxy
-must **pass the original `Host` header** — details and rationale:
-[Reverse proxy](docs/guide.md#reverse-proxy-mandatory).
-
-**Apache (recommended, on the host).** Install Apache with `ssl`, `proxy`, and
-`proxy_http` enabled. Copy
-[deploy/apache/selfpost-vhost.conf](deploy/apache/selfpost-vhost.conf) into your
-vhost directory, replace `mail.example.com` with your hostname, enable the site,
-then issue a certificate:
-
-```sh
-sudo certbot --apache -d mail.example.com
-```
-
-Point `./certs` at the PEM files certbot wrote (symlink is fine):
-
-```sh
-ln -s /etc/letsencrypt/live/mail.example.com certs
-```
-
-**nginx (containerised).** From the `deploy/` directory, merge the nginx
-fragment and issue the first certificate before nginx can serve HTTPS:
-
-```sh
-docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml \
-  run --rm certbot certonly --webroot -w /var/www/certbot \
-  -d mail.example.com --email you@example.com --agree-tos --no-eff-email
-
-docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml up -d
-```
-
-Edit [deploy/nginx/nginx.conf.example](deploy/nginx/nginx.conf.example) and
-replace `mail.example.com` first. The fragment bind-mounts certbot's output into
-both nginx and SelfPost.
-
-**Caddy (containerised, automatic ACME).** Edit
-[deploy/caddy/Caddyfile](deploy/caddy/Caddyfile) and the `<hostname>` placeholders
-in [deploy/caddy/docker-compose.caddy.yml](deploy/caddy/docker-compose.caddy.yml),
-then:
-
-```sh
-docker compose -f docker-compose.yml -f caddy/docker-compose.caddy.yml up -d
-```
-
-Verify Caddy's on-disk cert path for your version before relying on the
-default mount — see the comment at the top of the Caddy compose fragment.
-
-**Traefik (containerised).** Edit the `Host(...)` label and ACME email in
-[deploy/traefik/docker-compose.traefik.yml](deploy/traefik/docker-compose.traefik.yml),
-start the stack, then extract PEM files for Postfix whenever Traefik issues or
-renews a certificate:
-
-```sh
-docker compose -f docker-compose.yml -f traefik/docker-compose.traefik.yml up -d
-./traefik/extract-cert.sh ./traefik/letsencrypt/acme.json mail.example.com ./traefik/extracted-certs
-```
-
-Schedule `extract-cert.sh` (cron or a timer) alongside Traefik's renewals.
-
-### 3. Start SelfPost
-
-If you used Apache on the host (step 2, first option), start only the base
-compose file from your `selfpost/` directory:
-
-```sh
-docker compose up -d
-```
-
-The nginx/Caddy/Traefik fragments from step 2 already include `docker compose up
--d` — skip this if you ran one of those.
-
-**Get the setup URL** — open it in a browser to create the admin account
-([first boot](#quick-start)):
-
-```sh
-docker compose logs selfpost 2>&1 | grep -m1 'http'
-```
-
-```sh
-cat ./data/setup-token
-```
-
-The file is deleted as soon as setup completes. If logs are shipped to a
-central aggregator, prefer `cat ./data/setup-token` so the bearer token does
-not enter the log pipeline.
-
-### 4. DNS and sending
-
-Before sending real mail:
-
-1. Confirm PTR/rDNS for the server IP points at `SELFPOST_HOSTNAME` (Status
-   page → *Re-check*).
-2. For each domain you add in the panel, publish SPF, DKIM, and DMARC at the
-   same time ([DNS setup](docs/guide.md#dns-setup)).
-3. Warm up a new IP gradually ([IP warmup](docs/guide.md#ip-warmup)).
-
-### Ports and upgrades
-
-The compose file maps **465** (always) and **587** (when
-`SUBMISSION_ENABLE=true`). Bump the pinned image tag deliberately when
-upgrading — never use `:latest` ([why](docs/guide.md#fixed-image-tag)).
-
-Optional variables (`TRUSTED_PROXY_CIDR`, rate limits, retention): see
-[Environment variables](docs/guide.md#environment-variables).
+The compose file always publishes **465** and **587**; Postfix listens on 587
+only when `SUBMISSION_ENABLE=true` (see [Ports](docs/guide.md#ports)). Bump the
+pinned image tag deliberately when upgrading, never `:latest` ([why](docs/guide.md#fixed-image-tag)). Optional
+variables (`TRUSTED_PROXY_CIDR`, rate limits, retention): see [Environment
+variables](docs/guide.md#environment-variables).
 
 ## License
 

build/Dockerfile

@@ -87,21 +87,25 @@ COPY --from=build /out/panel /usr/local/bin/panel
 COPY --from=build /out/selfpost-backup /usr/local/bin/selfpost-backup
 
 # Licence text shipped with the image (AGPL-3.0 conveyance). The panel also
-# serves the same text at /license from an embedded copy.
-COPY LICENSE NOTICE /usr/share/doc/selfpost/
+# serves the same text at /license from an embedded copy. OFL.txt is the SIL
+# Open Font License 1.1 that must travel with the IBM Plex WOFF2 files
+# embedded in the panel binary (NOTICE).
+COPY --chmod=0644 LICENSE NOTICE /usr/share/doc/selfpost/
+COPY --chmod=0644 internal/web/view/static/OFL.txt /usr/share/doc/selfpost/OFL.txt
 
-COPY build/opendkim.conf /etc/opendkim.conf
-COPY build/logrotate-mail.conf /etc/logrotate.d/mail
-COPY build/postfix-wrapper.sh /usr/local/bin/postfix-wrapper.sh
-COPY build/postfix-config.sh /usr/local/bin/postfix-config.sh
-COPY build/postfix-cert-reload.sh /usr/local/bin/postfix-cert-reload.sh
-COPY build/logrotate-loop.sh /usr/local/bin/logrotate-loop.sh
-COPY build/crashexit.py /usr/local/bin/crashexit.py
-COPY build/entrypoint.sh /usr/local/bin/entrypoint.sh
-COPY build/supervisord.conf /etc/supervisor/supervisord.conf
-RUN chmod +x /usr/local/bin/postfix-wrapper.sh /usr/local/bin/postfix-config.sh \
-      /usr/local/bin/postfix-cert-reload.sh /usr/local/bin/logrotate-loop.sh \
-      /usr/local/bin/crashexit.py /usr/local/bin/entrypoint.sh
+# File modes are pinned here so a build context copied from a checkout without
+# POSIX permissions (e.g. Windows tar sync) cannot land group-writable config
+# that logrotate would silently ignore — see docs/development.md § Building
+# binaries and the image.
+COPY --chmod=0644 build/opendkim.conf /etc/opendkim.conf
+COPY --chmod=0644 build/logrotate-mail.conf /etc/logrotate.d/mail
+COPY --chmod=0755 build/postfix-wrapper.sh /usr/local/bin/postfix-wrapper.sh
+COPY --chmod=0755 build/postfix-config.sh /usr/local/bin/postfix-config.sh
+COPY --chmod=0755 build/postfix-cert-reload.sh /usr/local/bin/postfix-cert-reload.sh
+COPY --chmod=0755 build/logrotate-loop.sh /usr/local/bin/logrotate-loop.sh
+COPY --chmod=0755 build/crashexit.py /usr/local/bin/crashexit.py
+COPY --chmod=0755 build/entrypoint.sh /usr/local/bin/entrypoint.sh
+COPY --chmod=0644 build/supervisord.conf /etc/supervisor/supervisord.conf
 
 # Published submission ports: 465 (smtps, primary) and 587 (submission, optional)
 # plus the panel on 8080. Outbound delivery dials remote MXs on 25 as a client,

build/entrypoint.sh

@@ -69,7 +69,7 @@ chmod 755 /data
 # later phase deliberately hands to another service. /data/log is exempt: it is
 # deliberately owned by postfix (postlogd writes the delivery log there) and is
 # normalised on its own below.
-find /data -mindepth 1 -maxdepth 1 ! -user panel ! -name log -exec chown -R panel:panel {} +
+find /data -mindepth 1 -maxdepth 1 ! -user panel ! -name log ! -name postfix -exec chown -R panel:panel {} +
 
 # DKIM key tree (spec 6, 9). The panel (user `panel`) generates keys and writes
 # the OpenDKIM tables; OpenDKIM (user `opendkim`) must read them. Normalise the
@@ -99,13 +99,13 @@ chown -R panel:selfpost /data/sasl
 chmod 2750 /data/sasl
 [ -e /data/sasl/sasldb2 ] && chmod 0640 /data/sasl/sasldb2
 
-# Postfix sender_login_maps (spec 5.1). The panel writes it; Postfix reads it.
-# Ensure the file exists (empty is fine) before Postfix starts so a reload that
-# references it never fails on a missing file, and keep it group-readable.
-mkdir -p /data/postfix
+# Postfix state under /data (spec 5.1, architecture.md § Persistence). The panel
+# writes sender_login_maps; Postfix owns the on-disk queue tree under queue/.
+mkdir -p /data/postfix/queue
 [ -e /data/postfix/sender_login_maps ] || : > /data/postfix/sender_login_maps
-chown -R panel:selfpost /data/postfix
+chown panel:selfpost /data/postfix
 chmod 2750 /data/postfix
+chown panel:selfpost /data/postfix/sender_login_maps
 chmod 0640 /data/postfix/sender_login_maps
 
 # Delivery log (architecture.md § Log tailer). postlogd writes it as user
@@ -144,4 +144,11 @@ chmod 2750 /run/opendkim /run/selfpost
 # start the same way the /data normalisation above is.
 /usr/local/bin/postfix-config.sh
 
+# Initialise the persistent queue tree on first start or after restore. postfix
+# set-permissions reads queue_directory from main.cf (set by postfix-config.sh).
+if [ ! -d /data/postfix/queue/active ]; then
+	postfix set-permissions
+fi
+chown -R postfix:postfix /data/postfix/queue
+
 exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf

build/logrotate-loop.sh

@@ -14,10 +14,49 @@
 # often than daily — polling merely bounds how late a legitimate rotation runs.
 set -eu
 
+CONFIG=/etc/logrotate.d/mail
 INTERVAL="${LOGROTATE_INTERVAL_SECONDS:-21600}"
 
+# logrotate refuses configs writable by group or others and exits 0 while
+# ignoring them — fail here so supervisord reports the fault.
+logrotate_config_ok() {
+	mode=$(stat -c '%a' "$CONFIG")
+	mode=${mode#0}
+	grp=$(( (mode / 10) % 10 ))
+	oth=$(( mode % 10 ))
+	case $grp in 2|3|6|7) return 1 ;; esac
+	case $oth in 2|3|6|7) return 1 ;; esac
+	return 0
+}
+
+logrotate_config_fatal() {
+	echo "logrotate-loop: refusing to run: $CONFIG mode $(stat -c '%a' "$CONFIG") is writable by group or others" >&2
+	exit 1
+}
+
+if ! logrotate_config_ok; then
+	logrotate_config_fatal
+fi
+
+run_logrotate() {
+	out=$(logrotate "$CONFIG" 2>&1) || {
+		echo "$out" >&2
+		return 1
+	}
+	case "$out" in
+		*Ignoring*|*Potentially\ dangerous\ mode*)
+			echo "$out" >&2
+			logrotate_config_fatal
+			;;
+	esac
+	return 0
+}
+
 while true; do
-	if logrotate /etc/logrotate.d/mail; then
+	if ! logrotate_config_ok; then
+		logrotate_config_fatal
+	fi
+	if run_logrotate; then
 		:
 	else
 		echo "logrotate-loop: logrotate failed, will retry after ${INTERVAL}s" >&2

build/postfix-config.sh

@@ -57,6 +57,9 @@ JOURNAL_SOCK="${JOURNAL_MILTER_SOCKET:-/run/selfpost/journal.sock}"
 # Persistent panel-managed sender map (spec 5.1); texthash needs no postmap, so
 # the unprivileged panel can rewrite it and just ask for a reload.
 SENDER_LOGIN_MAPS="${POSTFIX_SENDER_LOGIN_MAPS:-/data/postfix/sender_login_maps}"
+# Transit mail queue under /data so deferred/active messages survive container
+# recreate (architecture.md § Persistence). Distinct from sender_login_maps.
+QUEUE_DIR="${POSTFIX_QUEUE_DIR:-/data/postfix/queue}"
 SASLDB_PATH="${SASL_DB_PATH:-/data/sasl/sasldb2}"
 
 # Optional submission service on 587 (spec 5 p.1: off by default, enabled only
@@ -128,7 +131,8 @@ postconf -e \
 # resolves the full address first, then the "@domain" wildcard, so both address
 # modes work from the same map.
 postconf -e \
-	"smtpd_sender_login_maps=texthash:${SENDER_LOGIN_MAPS}"
+	"smtpd_sender_login_maps=texthash:${SENDER_LOGIN_MAPS}" \
+	"queue_directory=${QUEUE_DIR}"
 
 # Restrictions: authenticated clients only, no relay to foreign destinations,
 # and every authenticated sender address must be owned by its login. NO

build/supervisord.conf

@@ -104,8 +104,9 @@ stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 
 ; Periodic logrotate for /data/log/mail.log (spec 9, 10: daily, 7-14 files kept
-; in the image). Runs as root so logrotate can read/rotate the log; never exits
-; non-zero, so it neither trips the crashexit listener nor needs restarting.
+; in the image). Runs as root so logrotate can read/rotate the log. Exits
+; non-zero when the config is group/other-writable (logrotate would ignore it
+; silently); autorestart surfaces BACKOFF on the Status page.
 [program:logrotate]
 command=/usr/local/bin/logrotate-loop.sh
 priority=400

cmd/panel/envdoc_test.go

@@ -17,7 +17,7 @@ var documentedPublic = []string{
 	"TRUSTED_PROXY_CIDR",
 }
 
-// documentedInternal matches guide.md "Internal variables (not part of the operator interface)".
+// documentedInternal matches architecture.md § Configuration "Internal env vars".
 var documentedInternal = []string{
 	"SELFPOST_DATA_DIR",
 	"SELFPOST_DB_PATH",
@@ -33,6 +33,8 @@ var documentedInternal = []string{
 	"SASL_REALM",
 	"POSTFIX_DIR",
 	"POSTFIX_SENDER_LOGIN_MAPS",
+	"POSTFIX_QUEUE_DIR",
+	"SELFPOST_DEPLOY_ROOT",
 	"MILTER_CONNECT_TIMEOUT",
 	"MILTER_COMMAND_TIMEOUT",
 	"MILTER_CONTENT_TIMEOUT",
@@ -70,6 +72,7 @@ var loadConfigKeys = []string{
 	"SASL_DB_PATH",
 	"SASL_REALM",
 	"POSTFIX_DIR",
+	"SELFPOST_DEPLOY_ROOT",
 }
 
 // buildScriptKeys is every ${VAR:-…} / os.Getenv used in build/*.sh and entrypoint.sh
@@ -84,6 +87,7 @@ var buildScriptKeys = []string{
 	"JOURNAL_MILTER_SOCKET",
 	"MAIL_LOG",
 	"POSTFIX_SENDER_LOGIN_MAPS",
+	"POSTFIX_QUEUE_DIR",
 	"SASL_DB_PATH",
 	"SUBMISSION_ENABLE",
 	"MILTER_CONNECT_TIMEOUT",

cmd/panel/httpserver.go

@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"errors"
+	"fmt"
 	"log"
 	"net/http"
 	"time"
@@ -15,31 +16,81 @@ import (
 	"github.com/mixeme/selfpost/internal/web"
 )
 
+// mailStack is the panel's domain and application services plus the on-disk
+// mail-path adapters they write through.
+type mailStack struct {
+	Domains *domain.Service
+	Apps    *app.Service
+	pf      *postfix.Postfix
+	odk     *domain.OpenDKIM
+}
+
+func newMailStack(cfg config, st *store.Store) *mailStack {
+	pf := postfix.New(cfg.postfixDir)
+	odk := domain.NewOpenDKIM(cfg.opendkimDir)
+	apps := app.NewService(st, app.NewSASLDB(cfg.saslDBPath, cfg.saslRealm), pf)
+	domains := domain.NewService(st, odk, apps, cfg.dkimSelectorDef)
+	return &mailStack{Domains: domains, Apps: apps, pf: pf, odk: odk}
+}
+
+// Resync rebuilds OpenDKIM's tables and Postfix's sender map from SQLite and
+// reloads both daemons — the same work as the Status page's Reload button.
+func (m *mailStack) Resync() error {
+	if err := m.Domains.Resync(); err != nil {
+		return fmt.Errorf("opendkim resync: %w", err)
+	}
+	if err := m.Apps.Resync(); err != nil {
+		return fmt.Errorf("postfix resync: %w", err)
+	}
+	return nil
+}
+
+func (m *mailStack) skipReloadForTest() {
+	m.pf.SetReloadHook(func() error { return nil })
+	m.odk.SetReloadHook(func() error { return nil })
+}
+
+// resyncAfterRestore runs one mail-path Resync on the first boot after a
+// backup restore. testNoReload skips the supervisord reload step so restore
+// tests can verify file regeneration without a running mail stack.
+func resyncAfterRestore(cfg config, st *store.Store, testNoReload bool) error {
+	ms := newMailStack(cfg, st)
+	if testNoReload {
+		ms.skipReloadForTest()
+	}
+	return ms.Resync()
+}
+
+// newPanel wires the panel's services over the shared database handle and
+// builds the HTTP application from cfg. It is the composition of the panel as
+// the environment describes it, with nothing bound to a port yet.
+func newPanel(cfg config, st *store.Store) (*web.Server, error) {
+	ms := newMailStack(cfg, st)
+	return web.New(st, ms.Domains, ms.Apps, web.Config{
+		Hostname:               cfg.hostname,
+		CookieSecure:           cfg.cookieSecure,
+		SubmissionEnabled:      cfg.submissionEnabled,
+		MailLogPath:            cfg.mailLog,
+		DataDir:                cfg.dataDir,
+		DBPath:                 cfg.dbPath,
+		DeployRoot:             cfg.deployRoot,
+		Version:                buildinfo.Version,
+		TrustedProxyCIDRs:      cfg.trustedProxies,
+		TLSCertFile:            cfg.tlsCertFile,
+		OpenDKIMSocket:         cfg.opendkimSocket,
+		JournalSocket:          cfg.journalSocket,
+		SessionIdleDays:        cfg.sessionIdleDays,
+		DNSResolvers:           cfg.dnsResolvers,
+		RateLimitMessagesPerIP: cfg.rateLimitMessagesPerIP,
+		RateLimitWindowSeconds: cfg.rateLimitWindowSeconds,
+	}, cfg.setupTokenPath)
+}
+
 // serveHTTP runs the control-panel HTTP server until ctx is cancelled, using
 // the database handle shared by all roles: setup, login and the authenticated
 // panel surface (security.md).
 func serveHTTP(ctx context.Context, cfg config, st *store.Store) error {
-	// Applications own the SASL accounts and the Postfix sender map; the domain
-	// service delegates to them when a domain (and its applications) is deleted.
-	pf := postfix.New(cfg.postfixDir)
-	apps := app.NewService(st, app.NewSASLDB(cfg.saslDBPath, cfg.saslRealm), pf)
-	domains := domain.NewService(st, domain.NewOpenDKIM(cfg.opendkimDir), apps, cfg.dkimSelectorDef)
-
-	srvApp, err := web.New(st, domains, apps, web.Config{
-		Hostname:          cfg.hostname,
-		CookieSecure:      cfg.cookieSecure,
-		SubmissionEnabled: cfg.submissionEnabled,
-		MailLogPath:       cfg.mailLog,
-		DataDir:           cfg.dataDir,
-		DBPath:            cfg.dbPath,
-		Version:           buildinfo.Version,
-		TrustedProxyCIDRs: cfg.trustedProxies,
-		TLSCertFile:       cfg.tlsCertFile,
-		OpenDKIMSocket:    cfg.opendkimSocket,
-		JournalSocket:     cfg.journalSocket,
-		SessionIdleDays:   cfg.sessionIdleDays,
-		DNSResolvers:      cfg.dnsResolvers,
-	}, cfg.setupTokenPath)
+	srvApp, err := newPanel(cfg, st)
 	if err != nil {
 		return err
 	}

cmd/panel/main.go

@@ -4,7 +4,6 @@
 // the rate-limit checks.
 //
 // Copyright (C) 2026 Mikhail Yenuchenko
-// SPDX-License-Identifier: AGPL-3.0-only
 package main
 
 import (
@@ -53,16 +52,18 @@ type config struct {
 	mailLog       string
 	retentionDays int
 
-	dataDir           string
-	dbPath            string
-	manifestPath      string
-	setupTokenPath    string
-	hostname          string
-	cookieSecure      bool
-	submissionEnabled bool
-	trustedProxies    []*net.IPNet
-	sessionIdleDays   int
-	dnsResolvers      []string
+	dataDir                string
+	dbPath                 string
+	manifestPath           string
+	setupTokenPath         string
+	hostname               string
+	cookieSecure           bool
+	submissionEnabled      bool
+	trustedProxies         []*net.IPNet
+	sessionIdleDays        int
+	dnsResolvers           []string
+	rateLimitMessagesPerIP int
+	rateLimitWindowSeconds int
 
 	// Read-only inputs to the panel's status page: the certificate Postfix
 	// serves and the two milter sockets it connects to. The defaults mirror
@@ -77,6 +78,7 @@ type config struct {
 	saslDBPath string
 	saslRealm  string
 	postfixDir string
+	deployRoot string
 }
 
 func loadConfig() config {
@@ -117,6 +119,10 @@ func loadConfig() config {
 		// means dnscheck's public defaults; a closed network names its own here.
 		dnsResolvers: dnscheck.ParseResolvers(os.Getenv("SELFPOST_DNS_RESOLVERS")),
 
+		// Level-1 anvil defaults match build/postfix-config.sh / guide.md.
+		rateLimitMessagesPerIP: envInt("RATE_LIMIT_MESSAGES_PER_IP", 100),
+		rateLimitWindowSeconds: envInt("RATE_LIMIT_WINDOW_SECONDS", 3600),
+
 		tlsCertFile:    envDefault("TLS_CERT_FILE", "/etc/postfix/tls/fullchain.pem"),
 		opendkimSocket: envDefault("OPENDKIM_SOCKET", "/run/opendkim/opendkim.sock"),
 
@@ -133,6 +139,7 @@ func loadConfig() config {
 		saslDBPath: envDefault("SASL_DB_PATH", filepath.Join(dataDir, "sasl", "sasldb2")),
 		saslRealm:  saslRealm(),
 		postfixDir: envDefault("POSTFIX_DIR", filepath.Join(dataDir, "postfix")),
+		deployRoot: envDefault("SELFPOST_DEPLOY_ROOT", "/selfpost-deploy"),
 	}
 }
 
@@ -217,7 +224,8 @@ func run() error {
 	// touch the database, so schema/format skew between versions cannot corrupt
 	// the restored state. A match consumes the manifest; its absence is the
 	// normal (non-restore) case.
-	if err := backup.CheckRestore(cfg.manifestPath, buildinfo.Version); err != nil {
+	restored, err := backup.CheckRestore(cfg.manifestPath, buildinfo.Version)
+	if err != nil {
 		return err
 	}
 
@@ -230,6 +238,13 @@ func run() error {
 	}
 	defer st.Close()
 
+	if restored {
+		log.Printf("restore manifest accepted; regenerating mail-path maps from SQLite")
+		if err := resyncAfterRestore(cfg, st, false); err != nil {
+			return err
+		}
+	}
+
 	var wg sync.WaitGroup
 	errc := make(chan error, 3)
 

cmd/panel/restore_test.go

@@ -0,0 +1,490 @@
+package main
+
+import (
+	"archive/tar"
+	"bytes"
+	"compress/gzip"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/mixeme/selfpost/internal/backup"
+	"github.com/mixeme/selfpost/internal/buildinfo"
+	"github.com/mixeme/selfpost/internal/secretfile"
+	"github.com/mixeme/selfpost/internal/store"
+	"golang.org/x/crypto/bcrypt"
+)
+
+// Restoring a SelfPost backup is not a code path in the panel: the operator
+// extracts the archive into a project directory and starts the image, and the
+// panel is expected to come up on it (architecture.md § Persistence). Nothing
+// below stubs that story out — the archive is downloaded from a running panel
+// through /backup, unpacked the way `tar -xzf` unpacks it, and a second panel
+// is started on the result through the same startup sequence run() uses:
+// CheckRestore, store.Open, newPanel, Start.
+
+const (
+	restorePassword = "correct-horse-battery"
+	restoreDomain   = "bs.example.ru"
+	restoreSubject  = "Order confirmation"
+)
+
+// restored is the outcome of a full backup-and-restore round trip.
+type restored struct {
+	panel      http.Handler // panel booted on the restored data directory
+	deployRoot string       // the restored project directory
+	dataDir    string       // the restored /data
+	session    *http.Cookie // a session opened before the backup was taken
+}
+
+// restoreFromOwnBackup runs the operator's path end to end: seed a panel that
+// has been in use, sign in, download a backup from it, extract that archive
+// into an empty directory and boot a second panel there. A non-empty password
+// takes the encrypted download and decrypts it on the way in, which is what an
+// operator does with a .spbk file.
+func restoreFromOwnBackup(t *testing.T, password string) restored {
+	t.Helper()
+
+	live := seedPanelProject(t)
+	panel := bootPanel(t, live)
+	session := signIn(t, panel)
+	archive := downloadBackup(t, panel, session, password)
+
+	target := t.TempDir()
+	extract(t, archive, target)
+
+	return restored{
+		panel:      bootPanel(t, target),
+		deployRoot: target,
+		dataDir:    filepath.Join(target, "data"),
+		session:    session,
+	}
+}
+
+// The panel has to come up on the restored directory and show the state that
+// was in the archive, without the operator touching anything else: the domain
+// and its journal are in the database the archive carried, and the credentials
+// that worked before the restore still work after it.
+func TestPanelBootsOnADataDirectoryRestoredFromItsOwnBackup(t *testing.T) {
+	r := restoreFromOwnBackup(t, "")
+
+	body := getPage(t, r.panel, "/deliveries", signIn(t, r.panel))
+	for _, want := range []string{restoreDomain, restoreSubject} {
+		if !strings.Contains(body, want) {
+			t.Errorf("the restored panel's send log does not show %q:\n%s", want, body)
+		}
+	}
+
+	// The archive carries the daemon files, and the first boot after restore
+	// re-derives the maps from SQLite so they stay aligned with the database.
+	for path, want := range map[string]string{
+		filepath.Join("opendkim", "keys", restoreDomain, "selfpost.private"): "PRIVATE KEY",
+		filepath.Join("sasl", "sasldb2"):                                     "SASLDB",
+		filepath.Join("postfix", "sender_login_maps"):                        "@" + restoreDomain + " shop\n",
+	} {
+		got, err := os.ReadFile(filepath.Join(r.dataDir, path))
+		if err != nil {
+			t.Errorf("the restored data directory has no %s: %v", path, err)
+			continue
+		}
+		if string(got) != want {
+			t.Errorf("%s = %q, want %q", path, got, want)
+		}
+	}
+
+	for _, name := range []string{backup.ComposeFileName, backup.EnvFileName} {
+		if _, err := os.Stat(filepath.Join(r.deployRoot, name)); err != nil {
+			t.Errorf("the restored project directory has no %s: %v", name, err)
+		}
+	}
+}
+
+// The one-time setup link is closed by the presence of a panel user, and the
+// restored database has one. A restore that reopened it would publish a link
+// that creates a second global administrator on a server holding live mail
+// credentials (security.md).
+func TestARestoreDoesNotReopenTheSetupLink(t *testing.T) {
+	r := restoreFromOwnBackup(t, "")
+
+	if _, err := os.Stat(filepath.Join(r.dataDir, "setup-token")); !os.IsNotExist(err) {
+		t.Errorf("the restored panel wrote a setup token (stat err = %v)", err)
+	}
+	body := getPage(t, r.panel, "/login", nil)
+	if strings.Contains(body, "No administrator has been created yet") {
+		t.Errorf("the restored panel offers first-run setup:\n%s", body)
+	}
+}
+
+// Sessions live in the database, so they travel in the archive: a cookie that
+// was valid when the backup was taken is valid again on the restored panel.
+// That is the documented consequence of restoring an older backup (guide §
+// Backup and restore) — stated here so it cannot change by accident.
+func TestARestoredPanelHonoursSessionsFromTheArchive(t *testing.T) {
+	r := restoreFromOwnBackup(t, "")
+
+	rec := request(t, r.panel, http.MethodGet, "/deliveries", nil, r.session)
+	if rec.Code != http.StatusOK {
+		t.Errorf("a session from before the backup = %d on the restored panel, want 200", rec.Code)
+	}
+}
+
+// An encrypted download is the same archive inside an envelope, so it restores
+// the same way once the password is supplied. The archive is never written to
+// disk in the clear by the panel, so this is the only place the two paths can
+// be shown to agree.
+func TestAnEncryptedBackupRestoresTheSameWay(t *testing.T) {
+	r := restoreFromOwnBackup(t, "a-long-enough-password")
+
+	body := getPage(t, r.panel, "/deliveries", signIn(t, r.panel))
+	if !strings.Contains(body, restoreSubject) {
+		t.Errorf("the panel restored from an encrypted backup lost the send log:\n%s", body)
+	}
+}
+
+// A restore boot runs one Resync from SQLite. If the archive's Postfix map
+// drifted from the database, that step puts it back before mail flows.
+func TestResyncAfterRestoreHealsDriftedMaps(t *testing.T) {
+	deployRoot := seedPanelProject(t)
+	dataDir := filepath.Join(deployRoot, "data")
+	cfg := panelConfig(t, deployRoot)
+
+	mapPath := filepath.Join(dataDir, "postfix", "sender_login_maps")
+	if err := os.WriteFile(mapPath, []byte("stale map\n"), 0o640); err != nil {
+		t.Fatalf("write stale map: %v", err)
+	}
+
+	manifest, err := json.Marshal(backup.Manifest{
+		Format:    backup.FormatFull,
+		Version:   buildinfo.Version,
+		CreatedAt: "2026-08-14T00:00:00Z",
+	})
+	if err != nil {
+		t.Fatalf("marshal manifest: %v", err)
+	}
+	if err := os.WriteFile(cfg.manifestPath, manifest, 0o644); err != nil {
+		t.Fatalf("write manifest: %v", err)
+	}
+
+	restored, err := backup.CheckRestore(cfg.manifestPath, buildinfo.Version)
+	if err != nil {
+		t.Fatalf("CheckRestore: %v", err)
+	}
+	if !restored {
+		t.Fatal("CheckRestore did not report a restore")
+	}
+
+	st, err := store.Open(cfg.dbPath)
+	if err != nil {
+		t.Fatalf("open store: %v", err)
+	}
+	defer st.Close()
+
+	if err := resyncAfterRestore(cfg, st, true); err != nil {
+		t.Fatalf("resync after restore: %v", err)
+	}
+
+	got, err := os.ReadFile(mapPath)
+	if err != nil {
+		t.Fatalf("read sender map: %v", err)
+	}
+	want := "@" + restoreDomain + " shop\n"
+	if string(got) != want {
+		t.Errorf("sender map = %q, want %q", got, want)
+	}
+}
+
+// The version guard is what stops a restore from being silently corrupted by
+// schema skew, and it runs before anything opens the database. The manifest
+// stays put on a mismatch: the operator's next move is to start the image the
+// backup names, and it has to be there when they do.
+func TestPanelRefusesADataDirectoryRestoredFromAnotherVersion(t *testing.T) {
+	deployRoot := seedPanelProject(t)
+	dataDir := filepath.Join(deployRoot, "data")
+	var archive bytes.Buffer
+	if err := backup.Create(&archive, backup.Params{
+		DataDir:    dataDir,
+		DBPath:     filepath.Join(dataDir, "selfpost.db"),
+		Version:    "9.9.9",
+		DeployRoot: deployRoot,
+	}); err != nil {
+		t.Fatalf("create backup: %v", err)
+	}
+	target := t.TempDir()
+	extract(t, archive.Bytes(), target)
+
+	cfg := panelConfig(t, target)
+	_, err := backup.CheckRestore(cfg.manifestPath, buildinfo.Version)
+	if err == nil {
+		t.Fatal("the panel booted on a data directory left by another version")
+	}
+	for _, want := range []string{"9.9.9", buildinfo.Version} {
+		if !strings.Contains(err.Error(), want) {
+			t.Errorf("the refusal does not name %q, so the operator cannot tell which image to run: %v", want, err)
+		}
+	}
+	if _, statErr := os.Stat(cfg.manifestPath); statErr != nil {
+		t.Errorf("the manifest was consumed by a refused restore: %v", statErr)
+	}
+}
+
+// seedPanelProject builds an operator project tree: data/ with a panel that has
+// been in use, plus docker-compose.yml, .env, and certs/ for full backups.
+func seedPanelProject(t *testing.T) string {
+	t.Helper()
+	deployRoot := t.TempDir()
+	dataDir := filepath.Join(deployRoot, "data")
+	if err := os.MkdirAll(dataDir, 0o750); err != nil {
+		t.Fatalf("mkdir data: %v", err)
+	}
+
+	st, err := store.Open(filepath.Join(dataDir, "selfpost.db"))
+	if err != nil {
+		t.Fatalf("open store: %v", err)
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(restorePassword), bcrypt.MinCost)
+	if err != nil {
+		t.Fatalf("hash password: %v", err)
+	}
+	if err := st.CreateGlobalUser("admin", string(hash)); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
+	dom, err := st.AddDomain(restoreDomain, "selfpost")
+	if err != nil {
+		t.Fatalf("add domain: %v", err)
+	}
+	if _, err := st.AddApplication(dom.ID, "shop", store.AddressModeWildcard, nil); err != nil {
+		t.Fatalf("add application: %v", err)
+	}
+	if err := st.InsertQueued(store.SendLogEntry{
+		QueueID: "4A1B2C3D", Domain: restoreDomain, AppLogin: "shop",
+		From: "noreply@" + restoreDomain, To: "customer@example.net", Subject: restoreSubject,
+	}); err != nil {
+		t.Fatalf("insert send-log row: %v", err)
+	}
+	if err := st.Close(); err != nil {
+		t.Fatalf("close store: %v", err)
+	}
+
+	for path, content := range map[string]string{
+		filepath.Join("opendkim", "keys", restoreDomain, "selfpost.private"): "PRIVATE KEY",
+		filepath.Join("sasl", "sasldb2"):                                     "SASLDB",
+		filepath.Join("postfix", "sender_login_maps"):                        "@" + restoreDomain + " shop\n",
+		filepath.Join("log", "mail.log"):                                     "postfix/smtp[1]: 4A1B2C3D: status=sent",
+	} {
+		full := filepath.Join(dataDir, path)
+		if err := os.MkdirAll(filepath.Dir(full), 0o750); err != nil {
+			t.Fatalf("mkdir %s: %v", full, err)
+		}
+		if err := os.WriteFile(full, []byte(content), 0o640); err != nil {
+			t.Fatalf("write %s: %v", full, err)
+		}
+	}
+
+	writeDeployFile(t, filepath.Join(deployRoot, backup.ComposeFileName), "services:\n  selfpost:\n    image: test\n")
+	writeDeployFile(t, filepath.Join(deployRoot, backup.EnvFileName), "SELFPOST_HOSTNAME=mail.example.ru\n")
+	writeDeployFile(t, filepath.Join(deployRoot, backup.CertsDirName, "fullchain.pem"), "CERT")
+	writeDeployFile(t, filepath.Join(deployRoot, backup.CertsDirName, "privkey.pem"), "KEY")
+	return deployRoot
+}
+
+func writeDeployFile(t *testing.T, path, content string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o750); err != nil {
+		t.Fatalf("mkdir %s: %v", path, err)
+	}
+	if err := os.WriteFile(path, []byte(content), 0o640); err != nil {
+		t.Fatalf("write %s: %v", path, err)
+	}
+}
+
+// panelConfig resolves the panel's own configuration for a project directory, so
+// the test finds the files where the running binary would look for them rather
+// than where it put them. Cookies are marked insecure for the same reason the
+// e2e stand does it: the test client speaks plain HTTP.
+func panelConfig(t *testing.T, deployRoot string) config {
+	t.Helper()
+	dataDir := filepath.Join(deployRoot, "data")
+	t.Setenv("SELFPOST_DATA_DIR", dataDir)
+	t.Setenv("SELFPOST_DEPLOY_ROOT", deployRoot)
+	t.Setenv("PANEL_COOKIE_SECURE", "false")
+	t.Setenv("SELFPOST_HOSTNAME", "mail.example.ru")
+	// MAIL_LOG's default is an absolute path, not one derived from the data
+	// directory; without this the panel would read the host's /data.
+	t.Setenv("MAIL_LOG", filepath.Join(dataDir, "log", "mail.log"))
+	return loadConfig()
+}
+
+// bootPanel performs the startup sequence run() performs, in the same order,
+// and returns the panel's HTTP handler.
+func bootPanel(t *testing.T, deployRoot string) http.Handler {
+	t.Helper()
+	cfg := panelConfig(t, deployRoot)
+
+	restored, err := backup.CheckRestore(cfg.manifestPath, buildinfo.Version)
+	if err != nil {
+		t.Fatalf("the panel refused to start on %s: %v", deployRoot, err)
+	}
+	if restored {
+		if _, err := os.Stat(cfg.manifestPath); err == nil {
+			t.Errorf("the restore manifest was not consumed, so the next start is gated by it too")
+		}
+	}
+
+	st, err := store.Open(cfg.dbPath)
+	if err != nil {
+		t.Fatalf("open the restored database: %v", err)
+	}
+	t.Cleanup(func() { _ = st.Close() })
+
+	if restored {
+		if err := resyncAfterRestore(cfg, st, true); err != nil {
+			t.Fatalf("resync after restore: %v", err)
+		}
+	}
+
+	panel, err := newPanel(cfg, st)
+	if err != nil {
+		t.Fatalf("build the panel: %v", err)
+	}
+	if err := panel.Start(); err != nil {
+		t.Fatalf("start the panel: %v", err)
+	}
+	return panel.Handler()
+}
+
+// signIn signs in as the seeded administrator and returns the session cookie.
+func signIn(t *testing.T, h http.Handler) *http.Cookie {
+	t.Helper()
+	form := url.Values{"username": {"admin"}, "password": {restorePassword}}
+	rec := request(t, h, http.MethodPost, "/login", strings.NewReader(form.Encode()), nil)
+	if rec.Code != http.StatusSeeOther {
+		t.Fatalf("sign in = %d, want 303:\n%s", rec.Code, rec.Body.String())
+	}
+	cookies := rec.Result().Cookies()
+	if len(cookies) == 0 {
+		t.Fatal("sign in issued no session cookie")
+	}
+	return cookies[0]
+}
+
+// downloadBackup takes a backup through the panel's own /backup route, the way
+// the operator does. An empty password downloads the plain archive; otherwise
+// the response is a .spbk envelope, which is decrypted here.
+func downloadBackup(t *testing.T, h http.Handler, session *http.Cookie, password string) []byte {
+	t.Helper()
+	form := url.Values{}
+	if password != "" {
+		form.Set("encrypt", "1")
+		form.Set("password", password)
+		form.Set("password_confirm", password)
+	}
+	rec := request(t, h, http.MethodPost, "/backup", strings.NewReader(form.Encode()), session)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("download a backup = %d, want 200:\n%s", rec.Code, rec.Body.String())
+	}
+	if got := rec.Header().Get("Cache-Control"); got != "no-store" {
+		t.Errorf("Cache-Control = %q; an archive of every secret on the server must not be cached", got)
+	}
+
+	body := rec.Body.Bytes()
+	if password == "" {
+		if secretfile.HasMagic(body) {
+			t.Fatal("an unencrypted download came back as an envelope")
+		}
+		return body
+	}
+
+	if !secretfile.HasMagic(body) {
+		t.Fatal("the download is not an encrypted envelope, so the archive left the panel in the clear")
+	}
+	r, err := secretfile.NewReader(bytes.NewReader(body), password)
+	if err != nil {
+		t.Fatalf("open the encrypted backup: %v", err)
+	}
+	plain, err := io.ReadAll(r)
+	if err != nil {
+		t.Fatalf("decrypt the backup: %v", err)
+	}
+	return plain
+}
+
+// extract unpacks a backup archive into dir, as `tar -xzf` does onto the project
+// directory before the image is started.
+func extract(t *testing.T, archive []byte, dir string) {
+	t.Helper()
+	gz, err := gzip.NewReader(bytes.NewReader(archive))
+	if err != nil {
+		t.Fatalf("the download is not a gzip stream: %v", err)
+	}
+	tr := tar.NewReader(gz)
+	for {
+		hdr, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			t.Fatalf("read the archive: %v", err)
+		}
+		name := filepath.Clean(filepath.FromSlash(hdr.Name))
+		if strings.HasPrefix(name, "..") || filepath.IsAbs(name) {
+			t.Fatalf("the archive escapes the directory it is extracted into: %q", hdr.Name)
+		}
+		path := filepath.Join(dir, name)
+
+		switch hdr.Typeflag {
+		case tar.TypeDir:
+			if err := os.MkdirAll(path, hdr.FileInfo().Mode().Perm()); err != nil {
+				t.Fatalf("mkdir %s: %v", path, err)
+			}
+		case tar.TypeReg:
+			if err := os.MkdirAll(filepath.Dir(path), 0o750); err != nil {
+				t.Fatalf("mkdir %s: %v", filepath.Dir(path), err)
+			}
+			f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, hdr.FileInfo().Mode().Perm())
+			if err != nil {
+				t.Fatalf("create %s: %v", path, err)
+			}
+			if _, err := io.Copy(f, tr); err != nil {
+				f.Close()
+				t.Fatalf("write %s: %v", path, err)
+			}
+			if err := f.Close(); err != nil {
+				t.Fatalf("close %s: %v", path, err)
+			}
+		}
+	}
+}
+
+// getPage performs a GET and returns the body, failing on any non-200.
+func getPage(t *testing.T, h http.Handler, target string, session *http.Cookie) string {
+	t.Helper()
+	rec := request(t, h, http.MethodGet, target, nil, session)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("GET %s = %d, want 200:\n%s", target, rec.Code, rec.Body.String())
+	}
+	return rec.Body.String()
+}
+
+// request drives the panel's real handler chain, including the origin check,
+// with the headers a browser on the panel's own page would send.
+func request(t *testing.T, h http.Handler, method, target string, body io.Reader, session *http.Cookie) *httptest.ResponseRecorder {
+	t.Helper()
+	req := httptest.NewRequest(method, "http://mail.example.ru"+target, body)
+	req.Host = "mail.example.ru"
+	if method == http.MethodPost {
+		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+		req.Header.Set("Sec-Fetch-Site", "same-origin")
+	}
+	if session != nil {
+		req.AddCookie(session)
+	}
+	rec := httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+	return rec
+}

cmd/selfpost-backup/main.go

@@ -6,9 +6,9 @@
 //
 //	docker exec <container> selfpost-backup > selfpost-backup.tar.gz
 //
-// Use -o to write to a file instead. The resulting archive contains DKIM private
-// keys, the admin password hash and SASL credentials — treat it as a secret
-// (architecture.md § Persistence).
+// Use -o to write to a file instead. The resulting archive is self-contained:
+// data/, docker-compose.yml, .env, and certs/ when present — treat it as a
+// secret (architecture.md § Persistence).
 //
 // Given a password (SELFPOST_BACKUP_PASSWORD or -password-file, never an
 // argument, which would show up in the process list) the archive is written as
@@ -18,7 +18,6 @@
 //	docker exec -i <container> selfpost-backup -decrypt < backup.spbk > backup.tar.gz
 //
 // Copyright (C) 2026 Mikhail Yenuchenko
-// SPDX-License-Identifier: AGPL-3.0-only
 package main
 
 import (
@@ -88,9 +87,13 @@ func run(outPath, password string) error {
 	}
 
 	if err := backup.Create(sink, backup.Params{
-		DataDir: dataDir,
-		DBPath:  dbPath,
-		Version: buildinfo.Version,
+		DataDir:    dataDir,
+		DBPath:     dbPath,
+		Version:    buildinfo.Version,
+		DeployRoot: envDefault("SELFPOST_DEPLOY_ROOT", "/selfpost-deploy"),
+		OnWarn: func(msg string) {
+			fmt.Fprintf(os.Stderr, "selfpost-backup: %s\n", msg)
+		},
 	}); err != nil {
 		return err
 	}

cmd/selfpost-backup/main_test.go

@@ -9,13 +9,18 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/mixeme/selfpost/internal/backup"
 	"github.com/mixeme/selfpost/internal/store"
 )
 
-// seedDataDir builds the minimum /data tree a backup can be taken from.
-func seedDataDir(t *testing.T) string {
+// seedProject builds the minimum operator project tree a backup can be taken from.
+func seedProject(t *testing.T) (deployRoot, dataDir string) {
 	t.Helper()
-	dataDir := t.TempDir()
+	deployRoot = t.TempDir()
+	dataDir = filepath.Join(deployRoot, "data")
+	if err := os.MkdirAll(dataDir, 0o750); err != nil {
+		t.Fatalf("mkdir data: %v", err)
+	}
 	st, err := store.Open(filepath.Join(dataDir, "selfpost.db"))
 	if err != nil {
 		t.Fatalf("open store: %v", err)
@@ -26,16 +31,31 @@ func seedDataDir(t *testing.T) string {
 	if err := st.Close(); err != nil {
 		t.Fatalf("close store: %v", err)
 	}
+	writeFile(t, filepath.Join(deployRoot, backup.ComposeFileName), "services:\n  selfpost:\n    image: test\n")
+	writeFile(t, filepath.Join(deployRoot, backup.EnvFileName), "SELFPOST_HOSTNAME=mail.example.com\n")
+	writeFile(t, filepath.Join(deployRoot, backup.CertsDirName, "fullchain.pem"), "CERT")
+	writeFile(t, filepath.Join(deployRoot, backup.CertsDirName, "privkey.pem"), "KEY")
 	t.Setenv("SELFPOST_DATA_DIR", dataDir)
 	t.Setenv("SELFPOST_DB_PATH", filepath.Join(dataDir, "selfpost.db"))
-	return dataDir
+	t.Setenv("SELFPOST_DEPLOY_ROOT", deployRoot)
+	return deployRoot, dataDir
+}
+
+func writeFile(t *testing.T, path, content string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o750); err != nil {
+		t.Fatalf("mkdir %s: %v", path, err)
+	}
+	if err := os.WriteFile(path, []byte(content), 0o640); err != nil {
+		t.Fatalf("write %s: %v", path, err)
+	}
 }
 
 // An encrypted backup is only worth having if the container it came from can
 // hand it back as an ordinary archive during a restore, so the two halves of
 // the CLI are tested as the one round trip an operator actually performs.
 func TestEncryptedBackupRoundTrip(t *testing.T) {
-	seedDataDir(t)
+	seedProject(t)
 	dir := t.TempDir()
 	encrypted := filepath.Join(dir, "backup.spbk")
 	plain := filepath.Join(dir, "backup.tar.gz")
@@ -81,7 +101,12 @@ func TestEncryptedBackupRoundTrip(t *testing.T) {
 		}
 		names[hdr.Name] = true
 	}
-	for _, want := range []string{"manifest.json", "selfpost.db"} {
+	for _, want := range []string{
+		backup.DataArchivePrefix + backup.ManifestName,
+		backup.DataArchivePrefix + "selfpost.db",
+		backup.ComposeFileName,
+		backup.EnvFileName,
+	} {
 		if !names[want] {
 			t.Errorf("decrypted archive has no %s (entries: %v)", want, names)
 		}
@@ -91,7 +116,7 @@ func TestEncryptedBackupRoundTrip(t *testing.T) {
 // Without a password the CLI keeps producing the plain archive that existing
 // backup scripts consume.
 func TestUnencryptedBackupStaysPlain(t *testing.T) {
-	seedDataDir(t)
+	seedProject(t)
 	out := filepath.Join(t.TempDir(), "backup.tar.gz")
 	if err := run(out, ""); err != nil {
 		t.Fatalf("create backup: %v", err)

deploy/caddy/docker-compose.caddy.yml

@@ -31,6 +31,7 @@ services:
       TLS_KEY_FILE: /etc/postfix/tls/<hostname>.key
     volumes: !override
       - ./data:/data
+      - .:/selfpost-deploy:ro
       # Replace <hostname> with your actual mail/panel hostname, matching
       # the Caddyfile below and SELFPOST_HOSTNAME.
       - ./caddy/caddy-data/caddy/certificates/acme-v02.api.letsencrypt.org-directory/<hostname>:/etc/postfix/tls:ro

deploy/docker-compose.yml

@@ -22,7 +22,7 @@
 
 services:
   selfpost:
-    image: ghcr.io/mixeme/selfpost:1.1.0
+    image: ghcr.io/mixeme/selfpost:1.3.0
     restart: unless-stopped
     environment:
       SELFPOST_HOSTNAME: "${SELFPOST_HOSTNAME:?set the mail/panel hostname, e.g. mail.example.com}"
@@ -58,6 +58,9 @@ services:
       # kept) so the delivery lines that resolve a queued send-log row survive
       # a container recreate; it is diagnostics and is left out of backups.
       - ./data:/data
+      # Read-only project root for full backups: docker-compose.yml, .env, and
+      # certs/ are archived alongside /data (architecture.md § Persistence).
+      - .:/selfpost-deploy:ro
       # Read-only: SelfPost only ever reads certificates, never manages them
       # (spec 10 p.2). Point this at wherever your reverse-proxy/certbot
       # writes PEM files, e.g. /etc/letsencrypt on the host.

deploy/nginx/docker-compose.nginx.yml

@@ -27,6 +27,7 @@ services:
       # network at selfpost:8080 instead (see nginx.conf.example).
     volumes: !override
       - ./data:/data
+      - .:/selfpost-deploy:ro
       # Same host directory certbot below writes into — plain bind mount,
       # no named volume, so the PEM files are as directly inspectable as in
       # the Apache scenario (spec 10.3).

deploy/traefik/docker-compose.traefik.yml

@@ -17,6 +17,7 @@ services:
       - "587:587"
     volumes: !override
       - ./data:/data
+      - .:/selfpost-deploy:ro
       # Populated by extract-cert.sh from traefik's acme.json — see below.
       - ./traefik/extracted-certs:/etc/postfix/tls:ro
     labels:

docs/architecture.md

@@ -81,11 +81,13 @@ One process, three roles:
    proxy only.
 2. **journal-milter** — unix socket `JOURNAL_MILTER_SOCKET`; records From/To/
    Subject/SASL user at DATA; enforces level-2 rate limits; **fail-open**
-   (`default_action=accept`) so milter failure does not stop mail. The level-2
-   count is the stored send-log rows plus the messages this process has admitted
-   but not yet written (`internal/milter/inflight.go`), so concurrent sessions
-   cannot each spend the same last slot; a reservation is released at
-   end-of-message, on ABORT, or after a 10-minute TTL.
+   (`default_action=accept`) so milter failure does not stop mail. Domain
+   ceilings apply to every client IP; an application ceiling with trusted IPs
+   raises the limit for those IPs only and skips the domain check (guide § Rate
+   limiting). The level-2 count is the stored send-log rows plus the messages
+   this process has admitted but not yet written (`internal/milter/inflight.go`),
+   so concurrent sessions cannot each spend the same last slot; a reservation
+   is released at end-of-message, on ABORT, or after a 10-minute TTL.
 3. **log-tailer** — follows `MAIL_LOG`, updates send-log delivery status by
    queue-id. Send-log `queued → sent` transitions depend on this goroutine alone
    (`UpdateStatus` is only called from [internal/logtail](../internal/logtail/logtail.go)).
@@ -152,25 +154,31 @@ state for an older message and the page reports it as such, not as a failure.
 ## Panel HTTP surface
 
 Canonical routes: [internal/web/web.go](../internal/web/web.go). Authenticated
-unless noted. The table below is a summary — HTMX fragment endpoints
+unless noted. Routes marked **global** return **404** for domain administrators
+(`requireGlobal()` in
+[internal/web/handlers/authz.go](../internal/web/handlers/authz.go)). The table
+below is a summary — HTMX fragment endpoints
 (`/status/fragment`, `/deliveries/rows`, `/mail-queue/body`,
 `/system-log/body`, …) and every POST variant live in `web.go`.
 
 | Route | Purpose |
 |---|---|
 | `/healthz` | Liveness (no auth) |
+| `/license` | Embedded `LICENSE` text (no auth) |
 | `/setup/*` | One-time admin bootstrap |
 | `/login`, `/logout` | Session auth |
-| `/status` | Process, cert, socket, PTR checks; machine CPU/memory/network |
-| `/domains`, `/domains/*` | Domain and application CRUD, DKIM, L2 limits |
-| `/domains/import` | Domain import (`POST`; form on the Backup page) |
-| `/deliveries` | Send log with filters |
-| `/deliveries/{id}` | One send-log row in full, with its `mail.log` lines |
-| `/mail-queue` | Postfix queue view |
-| `/system-log` | `mail.log` tail |
-| `/reload` | Reload OpenDKIM + Postfix maps |
-| `/backup` | Full backup download (page also hosts the import form) |
-| `/account` | Admin username/password |
+| `/account` | 308 redirect to `/settings` (pre-1.2.3 route, kept as a compat shim) |
+| `/status`, `/status/*` | **Global.** Process, cert, socket, PTR checks; machine CPU/memory/network |
+| `/domains` | Domain list; `POST /domains` (add domain) is **global** |
+| `/domains/{id}`, `/domains/{id}/*` | Assigned-domain detail for domain-admins; delete domain is **global** |
+| `/domains/import` | **Global.** Domain import (`POST`; form on the Backup page) |
+| `/deliveries`, `/deliveries/{id}` | Send log with filters; scoped to assigned domains for domain-admins |
+| `/mail-queue`, `/mail-queue/*` | **Global.** Postfix queue view |
+| `/system-log`, `/system-log/*` | **Global.** `mail.log` tail |
+| `/reload` | **Global.** `POST` — reload OpenDKIM + Postfix maps |
+| `/backup`, `/backup/*` | **Global.** Full backup download (page also hosts the import form) |
+| `/settings` | Username/password for any user; DMARC report default is **global** only |
+| `/users`, `/users/*` | **Global.** Panel user CRUD |
 
 HTMX polling refreshes monitoring fragments (5 s while the operator is active on
 the page, 30 s when the tab is visible but idle, none when hidden — scheduled in
@@ -189,13 +197,16 @@ holds the cookie works after process restart, redeploy, or full backup restore.
   absolute cap (regular use keeps the session alive indefinitely).
 - **Renewal** — DB `last_seen` and cookie `Max-Age` update at most once per hour
   (`renewThreshold` in [internal/web/auth/session.go](../internal/web/auth/session.go)).
-- **Password change** — all other sessions are deleted; the current session stays
-  active ([internal/store/sessions.go](../internal/store/sessions.go),
-  [handlers_account.go](../internal/web/handlers/handlers_account.go)).
+- **Password change on `/settings`** — changing your own password deletes
+  every other session for that user; the current session stays active
+  ([internal/store/sessions.go](../internal/store/sessions.go),
+  [handlers_settings.go](../internal/web/handlers/handlers_settings.go)).
+  A global administrator resetting another user's password on `/users` updates
+  the hash but does not delete that user's existing sessions.
 
-Restoring an **older** backup also restores session rows: a session invalidated
-after that backup was taken can become valid again if the browser still has the
-cookie and idle timeout has not expired.
+Restoring an **older** backup also restores session rows: a session removed
+after that backup was taken can become valid again if the browser still holds
+the cookie and the restored row's `expires_at` has not passed.
 
 ---
 
@@ -280,19 +291,27 @@ single-connection trade-off that follows from it.
 | `opendkim/` | DKIM keys + tables |
 | `sasl/sasldb2` | Application SASL credentials |
 | `postfix/sender_login_maps` | Login → From binding |
+| `postfix/queue/` | Postfix transit mail (deferred/active); survives container recreate |
 | `log/mail.log` | Postfix delivery log + rotated copies (excluded from backups) |
 | `manifest.json` | Backup version stamp (consumed on restore) |
 
-Not in `/data`: TLS certificates (reverse-proxy mount), Postfix queue
-(transit mail not migrated by design).
+Not in `/data`: TLS certificates for the panel (reverse-proxy mount) — though
+full backups also archive the operator's `./certs` PEM files when present.
 
 **Rotation:** send-log retention `SEND_LOG_RETENTION_DAYS` (default 90);
 `mail.log` via logrotate (14 rotated files, check every 6h, rename +
 `postfix reload` in `postrotate` — see § Log tailer above).
 
-**Backup:** panel button or `selfpost-backup` CLI — SQLite snapshot + tar of
-`/data` tree, minus `log/`, the setup token and any `tls/`; version check on
-restore. Stopped-container `tar` of `./data` is safe (see guide).
+**Restore:** panel button or `selfpost-backup` CLI — self-contained archive:
+`data/` (SQLite snapshot + tree minus `log/`, the setup token and any `tls/`
+under `/data`), `docker-compose.yml`, `.env`, and `certs/` when present;
+version check on restore. Requires the project directory mounted read-only at
+`SELFPOST_DEPLOY_ROOT` (`/selfpost-deploy` in the default compose file). On the
+first successful boot after restore, the panel runs one **Resync** — OpenDKIM's
+tables and Postfix's sender map are re-derived from SQLite and both daemons are
+reloaded, so drift between the extracted archive and the database is healed
+before mail flows (same step as `POST /reload` on demand). Stopped-container
+`tar` of `./data` alone remains possible for state-only copies (see guide).
 
 **Optional encryption** of the two secret-bearing downloads
 ([internal/secretfile](../internal/secretfile/secretfile.go)): password →
@@ -314,5 +333,36 @@ origin check, no CSRF tokens) are documented there separately.
 
 ## Configuration
 
-Public and internal env vars: [guide § Environment variables](guide.md#environment-variables).
+Public env vars: [guide § Environment variables](guide.md#environment-variables).
 Regression test: [cmd/panel/envdoc_test.go](../cmd/panel/envdoc_test.go).
+
+**Internal env vars.** The following are read by the panel or startup scripts
+but are not part of the operator interface — not meant to be changed in a
+normal deployment; documented here so an accidental override reads as
+unsupported rather than as a missing doc:
+
+- **Panel paths and tuning:** `SELFPOST_DATA_DIR` (`/data`), `SELFPOST_DB_PATH`
+  (`/data/selfpost.db`), `SELFPOST_SETUP_TOKEN_FILE`
+  (`/data/setup-token`), `PANEL_HTTP_ADDR` (`:8080`),
+  `JOURNAL_MILTER_SOCKET` (`/run/selfpost/journal.sock`), `MAIL_LOG`
+  (`/data/log/mail.log` — read by the panel and written by Postfix, so a change
+  here has to be matched in `build/postfix-config.sh`),
+  `PANEL_COOKIE_SECURE` (`true`), `OPENDKIM_SOCKET`
+  (`/run/opendkim/opendkim.sock`), `OPENDKIM_DIR` (`/data/opendkim`),
+  `DKIM_SELECTOR_DEFAULT` (`selfpost`), `SASL_DB_PATH`
+  (`/data/sasl/sasldb2`), `SASL_REALM` (defaults to `SELFPOST_HOSTNAME`),
+  `POSTFIX_DIR` (`/data/postfix`), `POSTFIX_SENDER_LOGIN_MAPS`
+  (`/data/postfix/sender_login_maps` — read by Postfix config only; the panel
+  always writes `<POSTFIX_DIR>/sender_login_maps`, so overriding this env alone
+  desyncs the map Postfix reads from the file the panel maintains),
+  `POSTFIX_QUEUE_DIR` (`/data/postfix/queue` — set in `build/postfix-config.sh`),
+  `SELFPOST_DEPLOY_ROOT` (`/selfpost-deploy` — operator project directory for
+  full backups; mount `.:/selfpost-deploy:ro` in compose).
+- **Milter and Postfix startup:** `MILTER_CONNECT_TIMEOUT` (`15s`),
+  `MILTER_COMMAND_TIMEOUT` (`15s`), `MILTER_CONTENT_TIMEOUT` (`30s`),
+  `MILTER_WAIT_TIMEOUT` (`30` seconds).
+- **Background maintenance:** `TLS_RELOAD_INTERVAL_SECONDS` (`86400` — daily
+  `postfix reload` to pick up renewed certificates),
+  `LOGROTATE_INTERVAL_SECONDS` (`21600` — check `mail.log` rotation every six
+  hours; logrotate keeps 14 rotated files on a daily schedule, and each
+  rotation triggers `postfix reload`).

docs/assets/panel-ui/app.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>SelfPost — panel mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<script>
+(function () {
+  var map = {
+    login: "login.html",
+    setup: "setup.html",
+    status: "status.html",
+    domains: "domains.html",
+    domain: "domain.html",
+    "domain-delete": "domain-delete.html",
+    deliveries: "deliveries.html",
+    delivery: "delivery.html",
+    "mail-queue": "mail-queue.html",
+    "system-log": "system-log.html",
+    backup: "backup.html",
+    users: "users.html",
+    "user-form": "user-form.html",
+    "user-delete": "user-delete.html",
+    settings: "settings.html",
+    inbound: "inbound.html",
+    "inbound-domain": "inbound-domain.html",
+    "inbound-backup": "inbound-backup.html",
+    "inbound-delete": "inbound-delete.html",
+    dmarc: "dmarc.html",
+    "dmarc-domain": "dmarc-domain.html",
+    "dmarc-report": "dmarc-report.html",
+    "dmarc-report-fail": "dmarc-report-fail.html",
+    help: "help.html"
+  };
+  var h = location.hash.replace(/^#/, "");
+  location.replace((map[h] || "status.html") + location.search);
+})();
+</script>
+</head>
+<body>
+<p>Макеты собраны отдельными страницами. Откройте <a href="status.html">Status</a> или <a href="index.html">оглавление</a>.</p>
+</body>
+</html>

docs/assets/panel-ui/backup.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Backup &amp; migration — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-backup" data-page="backup" data-nav="backup" data-title="Backup" data-global-only="1">
+<main class="stack">
+  <h1>Backup &amp; migration</h1>
+  <div class="pair">
+    <div class="card">
+      <h2>Full backup</h2>
+      <p class="muted">Download a self-contained backup — <code>data/</code> (database, DKIM keys, credentials, Postfix queue), <code>docker-compose.yml</code>, <code>.env</code>, and <code>certs/</code>. Extract into an empty project directory on a new machine, adjust hostname if needed, and start the <strong>same SelfPost version</strong> before first boot. The reverse-proxy vhost is not included.</p>
+      <p class="muted"><strong>The backup file is a secret.</strong> Encrypting it is the simplest way to store it: the download is then a <code>.spbk</code> that only the password opens.</p>
+      <div class="encrypt">
+        <label class="check"><input type="checkbox" checked> <span>Encrypt with a password</span></label>
+        <div class="encrypt-fields">
+          <label>Password</label><input type="password" placeholder="at least 8 characters">
+          <label>Repeat password</label><input type="password">
+          <p class="muted">Keep this password: without it the file cannot be opened.</p>
+        </div>
+      </div>
+      <div class="actions-row"><button type="button">Download full backup</button></div>
+    </div>
+    <div class="card">
+      <h2>Import a domain</h2>
+      <p class="muted">Move a single domain here from another SelfPost instance — plain <code>.json</code> or encrypted <code>.spde</code>. Its DKIM key and application passwords come across, so the published DNS record needs no change. The export file is a secret, like a full backup.</p>
+      <label>Domain export file</label>
+      <input type="file">
+      <label>Password</label>
+      <input type="password" autocomplete="off">
+      <p class="muted">Needed for a <code>.spde</code> file. Leave empty for plain <code>.json</code>.</p>
+      <div class="actions-row"><button type="button">Import domain</button></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/deliveries.html

@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Deliveries — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-deliveries" data-page="deliveries" data-nav="deliveries" data-title="Deliveries">
+<main class="stack">
+  <h1>Deliveries</h1>
+  <form class="toolbar fill" action="#" onsubmit="return false">
+    <div class="field"><label>Domain</label>
+      <select><option>All domains</option><option>example.com</option><option>alerts.example.com</option></select>
+    </div>
+    <div class="field"><label>Application</label>
+      <select><option>All applications</option><option>newsletter</option><option>billing</option></select>
+    </div>
+    <button type="button">Filter</button>
+  </form>
+  <div class="fill">
+    <div class="card">
+      <table class="desk-only">
+        <thead><tr><th>Time</th><th>From</th><th>To</th><th>Subject</th><th>Status</th><th></th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="time muted">2026-08-15 20:14:02</td>
+            <td>billing@example.com</td>
+            <td>ada@example.net</td>
+            <td class="subject"><span>Invoice #4412</span></td>
+            <td class="status"><span class="st st-warn">deferred</span></td>
+            <td class="actions"><a href="delivery.html">Details</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-15 20:11:40</td>
+            <td>news@example.com</td>
+            <td>list-bounces@example.net</td>
+            <td class="subject"><span>August digest</span></td>
+            <td class="status"><span class="st st-ok">delivered</span></td>
+            <td class="actions"><a href="delivery.html">Details</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-15 19:02:11</td>
+            <td>alerts@alerts.example.com</td>
+            <td>noreply@blocked.example</td>
+            <td class="subject"><span>Disk 92% on web-3</span></td>
+            <td class="status"><span class="st st-error">bounced</span></td>
+            <td class="actions"><a href="delivery.html">Details</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-15 18:44:09</td>
+            <td>news@example.com</td>
+            <td>sam@example.org</td>
+            <td class="subject"><span>August digest</span></td>
+            <td class="status"><span class="st st-ok">delivered</span></td>
+            <td class="actions"><a href="delivery.html">Details</a></td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li>
+          <a href="delivery.html">
+            <span class="st st-warn">deferred</span><span class="when">20:14</span>
+            <span class="meta">billing@example.com → ada@example.net</span>
+            <span class="subj">Invoice #4412</span>
+          </a>
+        </li>
+        <li>
+          <a href="delivery.html">
+            <span class="st st-ok">delivered</span><span class="when">20:11</span>
+            <span class="meta">news@example.com → list-bounces@example.net</span>
+            <span class="subj">August digest</span>
+          </a>
+        </li>
+        <li>
+          <a href="delivery.html">
+            <span class="st st-error">bounced</span><span class="when">19:02</span>
+            <span class="meta">alerts@alerts.example.com → noreply@blocked.example</span>
+            <span class="subj">Disk 92% on web-3</span>
+          </a>
+        </li>
+      </ul>
+      <p class="muted">Page 1 of 4 · <a href="deliveries.html">Older →</a></p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/delivery.html

@@ -0,0 +1,77 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Invoice #4412 — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-delivery" data-page="delivery" data-nav="deliveries" data-title="Message">
+<main class="stack">
+  <div>
+    <h1 class="subject">Invoice #4412</h1>
+    <p class="route">
+      <span class="addr">billing@example.com</span>
+      <span class="arrow">→</span>
+      <span class="addr">ada@example.net</span>
+      <span class="st st-warn">deferred</span>
+    </p>
+    <a class="back" href="deliveries.html">&larr; Back to deliveries</a>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Message</h2>
+      <div class="facts">
+        <div class="fact"><span class="fact-label">Domain</span><span class="fact-value">example.com</span></div>
+        <div class="fact"><span class="fact-label">Application</span><span class="fact-value">billing</span></div>
+        <div class="fact"><span class="fact-label">Accepted</span><span class="fact-value">2026-08-15 20:14:02 UTC</span></div>
+        <div class="fact"><span class="fact-label">Status reported</span><span class="fact-value">2026-08-15 20:14:08 UTC</span></div>
+        <div class="fact"><span class="fact-label">Queue id</span><span class="fact-value mono">4C3A1E2F1A</span></div>
+        <div class="fact"><span class="fact-label">Journal id</span><span class="fact-value mono">1842</span></div>
+      </div>
+    </div>
+    <div class="card">
+      <h2>History</h2>
+      <ol class="timeline">
+        <li class="event lvl-ok">
+          <p class="event-time">2026-08-15 20:14:02 UTC</p>
+          <p class="event-title"><span class="st st-ok">accepted</span> Received by the relay</p>
+          <p class="event-detail muted">SASL login billing, queued as 4C3A1E2F1A.</p>
+        </li>
+        <li class="event lvl-warn">
+          <p class="event-time">2026-08-15 20:14:08 UTC</p>
+          <p class="event-title"><span class="st st-warn">deferred</span> Receiving MX asked to try later</p>
+          <p class="event-detail muted">Postfix retries: first after 5 minutes, then with increasing gaps up to 1 hour 7 minutes, for up to 5 days. There is no fixed attempt count — a deferred message stays in the queue until it is delivered or that lifetime runs out.</p>
+        </li>
+        <li class="event pending">
+          <p class="event-time">not yet</p>
+          <p class="event-title"><span class="st st-unknown">delivery</span> Waiting on the next retry</p>
+        </li>
+      </ol>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Delivery log</h2>
+      <table class="log desk-only">
+        <thead><tr><th>Time</th><th>Message</th></tr></thead>
+        <tbody>
+          <tr><td class="time muted">20:14:02</td><td class="log-text">postfix/smtpd[221]: 4C3A1E2F1A: client=203.0.113.40, sasl_username=billing</td></tr>
+          <tr><td class="time muted">20:14:02</td><td class="log-text">postfix/cleanup[224]: 4C3A1E2F1A: message-id=&lt;4412@example.com&gt;</td></tr>
+          <tr><td class="time muted">20:14:08</td><td class="log-text">postfix/smtp[230]: 4C3A1E2F1A: to=&lt;ada@example.net&gt;, relay=mx.example.net[198.51.100.20]:25, delay=6, status=deferred (450 4.2.1 mailbox busy)</td></tr>
+        </tbody>
+      </table>
+      <div class="phone-only">
+        <p class="muted" style="margin:0.6rem 0 0.2rem">20:14:08</p>
+        <span class="code">status=deferred (450 4.2.1 mailbox busy)</span>
+        <p class="muted" style="margin:0.6rem 0 0.2rem">20:14:02</p>
+        <span class="code">client=203.0.113.40, sasl_username=billing</span>
+      </div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/dmarc-domain.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>example.com — DMARC — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-dmarc-domain" data-page="dmarc-domain" data-nav="dmarc" data-title="example.com DMARC">
+<main class="stack">
+  <div>
+    <h1>example.com <span class="tag future">candidate</span></h1>
+    <a class="back g-only" href="dmarc.html">&larr; All DMARC reports</a>
+    <a class="back" href="domain.html">&larr; Back to example.com</a>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Last 7 days <span class="st st-ok">pass</span></h2>
+      <p>98% aligned. Tightening <code>p=</code> looks reasonable.</p>
+      <p class="muted"><a href="domain.html">Domain DNS and rua=</a></p>
+    </div>
+    <div class="card">
+      <h2>Third-party senders</h2>
+      <p>google.com / 66.102.0.0/20 failed SPF and DKIM 6 times. Everyone else is this relay.</p>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Reports</h2>
+      <table class="desk-only">
+        <thead><tr><th>Received</th><th>Reporter</th><th>Window</th><th>Pass</th><th>Fail</th><th></th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="time muted">2026-08-15 06:12</td>
+            <td class="muted">google.com</td>
+            <td>14 Aug</td>
+            <td>412</td>
+            <td>6</td>
+            <td class="actions"><a href="dmarc-report.html">View</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-14 06:08</td>
+            <td class="muted">google.com</td>
+            <td>13 Aug</td>
+            <td>390</td>
+            <td>2</td>
+            <td class="actions"><a href="dmarc-report.html">View</a></td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li>
+          <a href="dmarc-report.html">
+            <span class="st st-ok">412 pass</span><span class="when">14 Aug</span>
+            <span class="meta">google.com · 6 fail</span>
+          </a>
+        </li>
+        <li>
+          <a href="dmarc-report.html">
+            <span class="st st-ok">390 pass</span><span class="when">13 Aug</span>
+            <span class="meta">google.com · 2 fail</span>
+          </a>
+        </li>
+      </ul>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Sources · last 7 days</h2>
+      <table class="desk-only">
+        <thead><tr><th>Source</th><th>Pass</th><th>Fail</th><th>Disposition</th></tr></thead>
+        <tbody>
+          <tr><td class="muted">203.0.113.10 (this relay)</td><td>802</td><td>0</td><td><span class="st st-ok">none</span></td></tr>
+          <tr><td class="muted">google.com / 66.102.0.0/20</td><td>0</td><td>8</td><td><span class="st st-warn">none</span></td></tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li><a href="dmarc-report.html"><span>this relay</span><span class="st st-ok">802 pass</span></a></li>
+        <li><a href="dmarc-report.html"><span>google.com / 66.102.0.0/20</span><span class="st st-warn">8 fail</span></a></li>
+      </ul>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/dmarc-report-fail.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>google.com report — alerts.example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-dmarc-report-fail" data-page="dmarc-report-fail" data-nav="dmarc" data-title="DMARC report">
+<main class="stack">
+  <div>
+    <h1 class="subject">google.com · 14 Aug</h1>
+    <p class="route">
+      <span class="addr">alerts.example.com</span>
+      <span class="st st-ok">88 pass</span>
+      <span class="st st-error">19 fail</span>
+    </p>
+    <a class="back" href="dmarc.html">&larr; All DMARC reports</a>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Report</h2>
+      <div class="facts">
+        <div class="fact"><span class="fact-label">Reporter</span><span class="fact-value">google.com</span></div>
+        <div class="fact"><span class="fact-label">Report id</span><span class="fact-value mono">3178944098765432109</span></div>
+        <div class="fact"><span class="fact-label">Window</span><span class="fact-value">2026-08-14 00:00 – 2026-08-15 00:00 UTC</span></div>
+        <div class="fact"><span class="fact-label">Received</span><span class="fact-value">2026-08-15 04:40 UTC</span></div>
+        <div class="fact"><span class="fact-label">Contact</span><span class="fact-value">noreply-dmarc-support@google.com</span></div>
+      </div>
+    </div>
+    <div class="card attn">
+      <h2>Published policy</h2>
+      <div class="facts">
+        <div class="fact"><span class="fact-label">Domain</span><span class="fact-value">alerts.example.com</span></div>
+        <div class="fact"><span class="fact-label">p / sp / pct</span><span class="fact-value mono">none / none / 100</span></div>
+        <div class="fact"><span class="fact-label">adkim / aspf</span><span class="fact-value mono">r / r</span></div>
+        <div class="fact"><span class="fact-label">rua</span><span class="fact-value">dmarc@mail.example.org</span></div>
+      </div>
+      <p class="muted">A third-party source is not in SPF or DKIM. Do not tighten <code>p=</code> until that sender is gone or aligned.</p>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Records</h2>
+      <table class="desk-only">
+        <thead><tr><th>Source</th><th>Count</th><th>Disposition</th><th>SPF</th><th>DKIM</th><th>Header from</th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="muted">203.0.113.10 (this relay)</td>
+            <td>88</td>
+            <td><span class="st st-ok">none</span></td>
+            <td><span class="st st-ok">pass</span></td>
+            <td><span class="st st-ok">pass</span></td>
+            <td>alerts.example.com</td>
+          </tr>
+          <tr>
+            <td class="muted">198.51.100.80 (unknown)</td>
+            <td>19</td>
+            <td><span class="st st-error">none</span></td>
+            <td><span class="st st-error">fail</span></td>
+            <td><span class="st st-error">fail</span></td>
+            <td>alerts.example.com</td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li>
+          <div class="item">
+            <span>this relay · 88</span><span class="st st-ok">pass</span>
+            <span class="meta">203.0.113.10 · SPF pass · DKIM pass</span>
+          </div>
+        </li>
+        <li>
+          <div class="item">
+            <span>unknown · 19</span><span class="st st-error">fail</span>
+            <span class="meta">198.51.100.80 · SPF fail · DKIM fail</span>
+          </div>
+        </li>
+      </ul>
+      <p class="muted">Parsed from the aggregate XML. Forensic (<code>ruf=</code>) samples are not stored.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/dmarc-report.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>google.com report — example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-dmarc-report" data-page="dmarc-report" data-nav="dmarc" data-title="DMARC report">
+<main class="stack">
+  <div>
+    <h1 class="subject">google.com · 14 Aug</h1>
+    <p class="route">
+      <span class="addr">example.com</span>
+      <span class="st st-ok">412 pass</span>
+      <span class="st st-warn">6 fail</span>
+    </p>
+    <a class="back" href="dmarc-domain.html">&larr; Back to example.com</a>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Report</h2>
+      <div class="facts">
+        <div class="fact"><span class="fact-label">Reporter</span><span class="fact-value">google.com</span></div>
+        <div class="fact"><span class="fact-label">Report id</span><span class="fact-value mono">3178944012345678901</span></div>
+        <div class="fact"><span class="fact-label">Window</span><span class="fact-value">2026-08-14 00:00 – 2026-08-15 00:00 UTC</span></div>
+        <div class="fact"><span class="fact-label">Received</span><span class="fact-value">2026-08-15 06:12 UTC</span></div>
+        <div class="fact"><span class="fact-label">Contact</span><span class="fact-value">noreply-dmarc-support@google.com</span></div>
+      </div>
+    </div>
+    <div class="card">
+      <h2>Published policy</h2>
+      <div class="facts">
+        <div class="fact"><span class="fact-label">Domain</span><span class="fact-value">example.com</span></div>
+        <div class="fact"><span class="fact-label">p / sp / pct</span><span class="fact-value mono">none / none / 100</span></div>
+        <div class="fact"><span class="fact-label">adkim / aspf</span><span class="fact-value mono">r / r</span></div>
+        <div class="fact"><span class="fact-label">rua</span><span class="fact-value">dmarc@mail.example.org</span></div>
+      </div>
+      <p class="muted"><code>p=none</code> does not affect delivery. Failures here are forwarding through Google, not this relay.</p>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Records</h2>
+      <table class="desk-only">
+        <thead><tr><th>Source</th><th>Count</th><th>Disposition</th><th>SPF</th><th>DKIM</th><th>Header from</th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="muted">203.0.113.10 (this relay)</td>
+            <td>412</td>
+            <td><span class="st st-ok">none</span></td>
+            <td><span class="st st-ok">pass</span></td>
+            <td><span class="st st-ok">pass</span></td>
+            <td>example.com</td>
+          </tr>
+          <tr>
+            <td class="muted">66.102.1.44 (google.com)</td>
+            <td>6</td>
+            <td><span class="st st-warn">none</span></td>
+            <td><span class="st st-error">fail</span></td>
+            <td><span class="st st-error">fail</span></td>
+            <td>example.com</td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li>
+          <div class="item">
+            <span>this relay · 412</span><span class="st st-ok">pass</span>
+            <span class="meta">203.0.113.10 · SPF pass · DKIM pass</span>
+          </div>
+        </li>
+        <li>
+          <div class="item">
+            <span>google.com · 6</span><span class="st st-error">fail</span>
+            <span class="meta">66.102.1.44 · SPF fail · DKIM fail</span>
+          </div>
+        </li>
+      </ul>
+      <p class="muted">Parsed from the aggregate XML. Forensic (<code>ruf=</code>) samples are not stored.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/dmarc.html

@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>DMARC reports — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-dmarc" data-page="dmarc" data-nav="dmarc" data-title="DMARC" data-global-only="1">
+<main class="stack">
+  <div class="page-head">
+    <h1>DMARC reports <span class="tag future">candidate</span></h1>
+  </div>
+  <p class="muted">Aggregate reports SelfPost accepted for <code>rua=</code>. Forensic (<code>ruf=</code>) is out of scope. Open a report for the parsed XML — not a dashboard.</p>
+  <div class="pair">
+    <div class="card">
+      <h2>Ingest <span class="st st-ok">ok</span></h2>
+      <p>Last report 6 hours ago. Port 25 accepts only the configured report address.</p>
+    </div>
+    <div class="card">
+      <h2>This week</h2>
+      <p>14 kept, 0 parse failures. Older summaries are pruned.</p>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Recent reports</h2>
+      <table class="desk-only">
+        <thead><tr><th>Received</th><th>Domain</th><th>Reporter</th><th>Window</th><th>Pass</th><th>Fail</th><th></th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="time muted">2026-08-15 06:12</td>
+            <td><a href="dmarc-domain.html">example.com</a></td>
+            <td class="muted">google.com</td>
+            <td>14 Aug</td>
+            <td>412</td>
+            <td>6</td>
+            <td class="actions"><a href="dmarc-report.html">View</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-15 04:40</td>
+            <td>alerts.example.com</td>
+            <td class="muted">google.com</td>
+            <td>14 Aug</td>
+            <td>88</td>
+            <td>19</td>
+            <td class="actions"><a href="dmarc-report-fail.html">View</a></td>
+          </tr>
+          <tr>
+            <td class="time muted">2026-08-14 06:08</td>
+            <td><a href="dmarc-domain.html">example.com</a></td>
+            <td class="muted">google.com</td>
+            <td>13 Aug</td>
+            <td>390</td>
+            <td>2</td>
+            <td class="actions"><a href="dmarc-report.html">View</a></td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li>
+          <a href="dmarc-report.html">
+            <span class="st st-ok">412 pass</span><span class="when">06:12</span>
+            <span class="meta">example.com · google.com · 14 Aug</span>
+            <span class="subj">6 fail</span>
+          </a>
+        </li>
+        <li>
+          <a href="dmarc-report-fail.html">
+            <span class="st st-error">19 fail</span><span class="when">04:40</span>
+            <span class="meta">alerts.example.com · google.com · 14 Aug</span>
+            <span class="subj">88 pass</span>
+          </a>
+        </li>
+        <li>
+          <a href="dmarc-report.html">
+            <span class="st st-ok">390 pass</span><span class="when">14 Aug</span>
+            <span class="meta">example.com · google.com · 13 Aug</span>
+            <span class="subj">2 fail</span>
+          </a>
+        </li>
+      </ul>
+      <p class="muted">Each row is one aggregate XML SelfPost parsed. Domain names open the roll-up for that sending domain.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/domain-delete.html

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Delete example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-domain-delete" data-page="domain-delete" data-nav="domains" data-title="Delete domain">
+<main class="stack">
+  <div>
+    <h1>Delete example.com</h1>
+    <a class="back" href="domain.html">&larr; Back to example.com</a>
+  </div>
+  <div class="measure">
+    <div class="card">
+      <h2>Confirm deletion</h2>
+      <p>You are about to delete <strong>example.com</strong>. This will:</p>
+      <ul>
+        <li>permanently delete its DKIM signing key;</li>
+        <li>delete <strong>all 2 bound applications</strong>, including their SASL credentials;</li>
+        <li>reload OpenDKIM so the domain is no longer signed.</li>
+      </ul>
+      <p class="muted">This cannot be undone.</p>
+      <div class="actions-row"><button type="button" class="danger">Delete example.com</button></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/domain.html

@@ -0,0 +1,260 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-domain" data-page="domain" data-nav="domains" data-title="example.com">
+<main class="stack">
+  <div>
+    <h1>example.com</h1>
+    <a class="back" href="domains.html">&larr; All domains</a>
+  </div>
+  <div class="measure">
+    <div class="card credential" id="new-credential">
+      <div class="card-head">
+        <h2>New application password</h2>
+        <label class="help-link" for="help-password" title="Why this is shown once">?</label>
+      </div>
+      <p class="muted">Shown <strong>once only</strong> and not stored. Copy it now.</p>
+      <label>Login</label>
+      <div class="code-row"><span class="code">newsletter</span><button type="button" class="copy">Copy</button></div>
+      <label>Password</label>
+      <div class="code-row"><span class="code">xK.9fQ2m-pL7wR</span><button type="button" class="copy">Copy</button></div>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card" id="dns-status">
+      <div class="card-head">
+        <h2>DNS status <span class="st st-ok">ok</span></h2>
+        <label class="help-link" for="help-dns" title="What these checks mean">?</label>
+      </div>
+      <div class="stack">
+      <div class="pair">
+        <div>
+          <label>DKIM <span class="st st-ok">ok</span></label>
+          <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">mail._domainkey.example.com</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+        </div>
+        <div>
+          <label>SPF <span class="st st-ok">ok</span></label>
+          <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">example.com</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+        </div>
+      </div>
+      <div class="pair">
+        <div>
+          <label>DMARC <span class="st st-ok">ok</span></label>
+          <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">_dmarc.example.com</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+          <p class="muted">p=none; rua points at SelfPost ingest.</p>
+        </div>
+        <div>
+          <label>Report authorization</label>
+          <p class="muted">Not required (rua= is on a domain SelfPost accepts).</p>
+        </div>
+      </div>
+      </div>
+      <div class="actions-row"><button type="button">Re-check</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card" id="dkim-spf">
+      <div class="card-head">
+        <h2>DKIM and SPF records</h2>
+        <label class="help-link" for="help-records" title="What to publish">?</label>
+      </div>
+      <p class="check-col-title">DKIM</p>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row"><span class="code">mail._domainkey.example.com</span><button type="button" class="copy">Copy</button></div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+      <label>Value</label>
+      <div class="code-row"><span class="code">v=DKIM1; k=rsa; p=MIIBIjANBgkqh…</span><button type="button" class="copy">Copy</button></div>
+      <p class="check-col-title">SPF</p>
+      <div class="code-row"><span class="code">v=spf1 ip4:203.0.113.10 -all</span><button type="button" class="copy">Copy</button></div>
+    </div>
+    <div class="card" id="dmarc-record">
+      <div class="card-head">
+        <h2>DMARC record</h2>
+        <label class="help-link" for="help-dmarc" title="What this record does">?</label>
+      </div>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row"><span class="code">_dmarc.example.com</span><button type="button" class="copy">Copy</button></div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+      <label>Value <span class="muted">(from Settings)</span></label>
+      <div class="code-row"><span class="code">v=DMARC1; p=none; rua=mailto:dmarc@mail.example.org</span><button type="button" class="copy">Copy</button></div>
+      <p class="muted"><a href="dmarc-domain.html">Open DMARC reports</a> for this domain.</p>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card" id="connection">
+      <div class="card-head">
+        <h2>Connection settings</h2>
+        <label class="help-link" for="help-connection" title="How to connect">?</label>
+      </div>
+      <label>Server</label>
+      <div class="code-row"><span class="code">mail.example.org</span><button type="button" class="copy">Copy</button></div>
+      <label>Port and encryption</label>
+      <span class="code">465 — SSL/TLS (implicit)
+587 — STARTTLS (submission)</span>
+    </div>
+    <div class="card" id="add-application">
+      <div class="card-head">
+        <h2>Add an application</h2>
+        <label class="help-link" for="help-apps" title="What an application is">?</label>
+      </div>
+      <form action="#" onsubmit="return false">
+        <label>Login</label>
+        <input placeholder="prod-server" autocomplete="off">
+        <label>Address mode</label>
+        <select><option>Any address of the domain</option><option>Specific addresses (list)</option></select>
+        <div class="actions-row"><button type="button">Create application</button></div>
+      </form>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card" id="applications">
+      <div class="card-head">
+        <h2>Applications</h2>
+        <label class="help-link" for="help-apps" title="Address mode and rate limits">?</label>
+      </div>
+      <ul class="apps">
+        <li class="app-item">
+          <p class="app-login">newsletter</p>
+          <p class="app-addr muted">Any address of the domain — *@example.com</p>
+          <div class="actions">
+            <input class="panel-toggle t-edit" id="edit-1" type="checkbox" checked>
+            <label class="toggle for-edit" for="edit-1">Edit <span class="st st-ok">limit</span></label>
+            <button type="button">New password</button>
+            <button type="button" class="danger">Delete</button>
+            <div class="panel panel-edit">
+              <div class="pair">
+                <div>
+                  <p class="check-col-title">Address mode</p>
+                  <select><option selected>Any address of the domain</option><option>Specific addresses (list)</option></select>
+                </div>
+                <div>
+                  <p class="check-col-title">Trusted-IP override <span class="st st-ok">active</span></p>
+                  <textarea rows="1">203.0.113.40</textarea>
+                  <div class="field-row equal">
+                    <div class="field">
+                      <label>Message limit</label>
+                      <input value="80">
+                    </div>
+                    <div class="field">
+                      <label>Window (seconds)</label>
+                      <input value="60">
+                    </div>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </li>
+        <li class="app-item">
+          <p class="app-login">billing</p>
+          <p class="app-addr muted">Fixed list — invoices@example.com</p>
+          <div class="actions">
+            <button type="button">Edit</button>
+            <button type="button">New password</button>
+            <button type="button" class="danger">Delete</button>
+          </div>
+        </li>
+      </ul>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card" id="domain-settings-dmarc">
+      <div class="card-head">
+        <h2>DMARC reports</h2>
+        <label class="help-link" for="help-domain-settings" title="Reports and rate limits">?</label>
+      </div>
+      <label>Aggregate reports (rua=)</label>
+      <select><option selected>Same as Settings (dmarc@mail.example.org)</option><option>No aggregate reports</option><option>Custom address</option></select>
+      <div class="actions-row"><button type="button">Save DMARC report settings</button></div>
+    </div>
+    <div class="card" id="domain-settings-limit">
+      <div class="card-head">
+        <h2>Level-2 rate limit <span class="st st-ok">active</span></h2>
+      </div>
+      <div class="field-row equal">
+        <div class="field">
+          <label>Message limit</label>
+          <input value="40">
+        </div>
+        <div class="field">
+          <label>Window (seconds)</label>
+          <input value="60">
+        </div>
+      </div>
+      <div class="actions-row"><button type="button">Save limit</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card" id="export-domain">
+      <div class="card-head">
+        <h2>Export domain</h2>
+        <label class="help-link" for="help-export" title="What the file contains">?</label>
+      </div>
+      <p class="muted"><strong>Secret file</strong> — transfer securely, or encrypt as <code>.spde</code>.</p>
+      <div class="encrypt">
+        <label class="check"><input type="checkbox"> <span>Encrypt with a password</span></label>
+        <div class="encrypt-fields">
+          <label>Password</label><input type="password">
+          <label>Repeat password</label><input type="password">
+        </div>
+      </div>
+      <div class="actions-row"><button type="button">Export domain</button></div>
+    </div>
+    <div class="card g-only">
+      <h2>Danger zone</h2>
+      <p class="muted">Deletes the DKIM key and every application on this domain.</p>
+      <div class="actions-row"><a class="danger" href="domain-delete.html">Delete domain</a></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/domains.html

@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Domains — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-domains" data-page="domains" data-nav="domains" data-title="Domains">
+<main class="stack">
+  <div class="page-head"><h1>Domains</h1></div>
+  <div class="fill">
+    <div class="card">
+      <h2>Domains</h2>
+      <form class="measure g-only" action="#" onsubmit="return false;">
+        <label for="dname">Add a sending domain</label>
+        <div class="input-row">
+          <input id="dname" placeholder="example.com" autocomplete="off">
+          <button type="button">Add domain</button>
+        </div>
+      </form>
+      <table class="desk-only">
+        <thead><tr><th>Domain</th><th>DNS</th><th>Selector</th><th>Apps</th><th></th></tr></thead>
+        <tbody>
+          <tr>
+            <td><a href="domain.html">example.com</a></td>
+            <td><a class="st st-ok" href="domain.html">ok</a></td>
+            <td class="muted">mail</td>
+            <td>2</td>
+            <td class="actions g-only"><a class="danger" href="domain-delete.html">Delete</a></td>
+          </tr>
+          <tr>
+            <td><a href="domain.html">alerts.example.com</a></td>
+            <td><a class="st st-warn" href="domain.html">warn</a></td>
+            <td class="muted">mail</td>
+            <td>1</td>
+            <td class="actions g-only"><a class="danger" href="domain-delete.html">Delete</a></td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li><a href="domain.html"><span>example.com</span><span class="st st-ok">ok</span><span class="meta">2 apps · selector mail</span></a></li>
+        <li><a href="domain.html"><span>alerts.example.com</span><span class="st st-warn">warn</span><span class="meta">1 app · selector mail</span></a></li>
+      </ul>
+      <p class="muted">The DNS badge is the worst of DKIM, SPF and DMARC. Open a domain for details.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/help.html

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Help — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-help" data-page="help" data-nav="help" data-title="Help">
+<main class="stack">
+  <div class="page-head">
+    <h1>Help <span class="tag future">candidate</span></h1>
+  </div>
+  <p class="muted">Short operator notes inside the panel — not a second copy of the full guide. Seeded from the Status explanations that do not belong on the cards (what a kernel counter is, why PTR is set at the host, what Reload does not touch). The cards themselves keep their readings, Detail columns, and the Configuration control.</p>
+  <div class="measure stack">
+    <div class="card">
+      <h2>On this panel</h2>
+      <ul>
+        <li><a href="help.html">Machine</a> — kernel counters and the rate window</li>
+        <li><a href="help.html">TLS certificate</a> — port 465, reverse-proxy mount</li>
+        <li><a href="help.html">Hostname / reverse DNS</a> — forward-confirmed PTR at the hosting provider</li>
+        <li><a href="help.html">Mail queue retries</a> — time-based, no attempt budget</li>
+        <li><a href="help.html">Inbound</a> — not mailboxes; listed recipients or any address at the domain</li>
+        <li>Domain page — DNS, records, connection, applications, export (drawer from each card’s «?»)</li>
+      </ul>
+      <p class="muted">The same texts open in the drawer from Status’s «?» — so a card can stay a reading, not a paragraph, without throwing the reading away.</p>
+    </div>
+    <div class="card">
+      <h2>Machine</h2>
+      <p>CPU and memory are the container’s own readings, not the host’s spare capacity. Network is a short window, not a daily total. High CPU with an empty queue usually means something else on the box — not SelfPost “being slow to send”.</p>
+    </div>
+    <div class="card">
+      <h2>TLS certificate</h2>
+      <p>Port 465 presents the certificate the reverse proxy (or the image) mounted. The panel does not issue certificates. A warn here is “expires soon”; an error is “missing or unreadable”, and clients will refuse submission.</p>
+    </div>
+    <div class="card">
+      <h2>Hostname / reverse DNS</h2>
+      <p>Forward-confirmed reverse DNS: the A/AAAA for <code>SELFPOST_HOSTNAME</code> must reverse to that same name. PTR is set at the hosting provider, not in this panel. Receiving networks use this pair as a cheap reputation check.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/inbound-backup.html

@@ -0,0 +1,92 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>backup.example.net — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-inbound-backup" data-page="inbound-backup" data-nav="inbound" data-title="backup.example.net" data-global-only="1">
+<main class="stack">
+  <div>
+    <h1>backup.example.net</h1>
+    <a class="back" href="inbound.html">&larr; All inbound domains</a>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>DNS status <span class="st st-error">error</span></h2>
+      <p class="muted">Cached a few minutes — use <em>Re-check</em> after publishing. Unlike outbound, inbound needs an MX pointing at this server.</p>
+      <label>MX <span class="st st-error">error</span></label>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">backup.example.net</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">MX</span>
+          </div>
+        </div>
+      <label>Value</label>
+      <span class="code">10 mail.primary.example.net.</span>
+      <p class="error">No MX points at mail.example.org (this server). Publish the record below, or wait for DNS to propagate and Re-check.</p>
+      <div class="actions-row"><button type="button">Re-check</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Upstream</h2>
+      <p class="muted">Where accepted mail is handed off. Not a mailbox.</p>
+      <label>Host</label><input value="192.0.2.20">
+      <label>Port</label><input value="25">
+      <label>TLS to upstream</label>
+      <select><option>Opportunistic</option><option>Required</option><option selected>Off</option></select>
+      <div class="actions-row"><button type="button">Save upstream</button></div>
+    </div>
+    <div class="card">
+      <h2>MX record to publish</h2>
+      <p class="muted">Add this MX so the internet delivers here. Keep any existing primary MX if this is backup-MX.</p>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row"><span class="code">backup.example.net</span><button type="button" class="copy">Copy</button></div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">MX</span>
+          </div>
+        </div>
+      <label>Value</label>
+      <div class="code-row"><span class="code">20 mail.example.org.</span><button type="button" class="copy">Copy</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card rcpt-mode">
+      <h2>Valid recipients</h2>
+      <p class="muted">Who this domain accepts on port 25. Same idea as an application’s address mode: a list, or any address at the domain.</p>
+      <label>Who to accept</label>
+      <select>
+        <option value="list">Listed addresses only</option>
+        <option value="any" selected>Any recipient at this domain</option>
+      </select>
+      <div class="rcpt-list">
+        <label>Addresses (one per line or comma-separated)</label>
+        <textarea rows="6">postmaster@backup.example.net
+abuse@backup.example.net</textarea>
+        <p class="muted">Unknown recipients are rejected at RCPT so this relay does not generate backscatter.</p>
+      </div>
+      <p class="rcpt-any muted">Every address at this domain is accepted and forwarded. Prefer a list unless the upstream rejects unknowns — otherwise this relay may generate backscatter.</p>
+      <div class="actions-row"><button type="button">Save recipients</button></div>
+    </div>
+    <div class="card">
+      <h2>Danger zone</h2>
+      <p class="muted">Stops accepting mail for this domain. Does not touch outbound sending domains.</p>
+      <div class="actions-row"><a class="danger" href="inbound-delete.html">Delete inbound domain</a></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/inbound-delete.html

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Delete lists.example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-inbound-delete" data-page="inbound-delete" data-nav="inbound" data-title="Delete inbound" data-global-only="1">
+<main class="stack">
+  <div>
+    <h1>Delete lists.example.com</h1>
+    <a class="back" href="inbound-domain.html">&larr; Back to lists.example.com</a>
+  </div>
+  <div class="measure">
+    <div class="card">
+      <h2>Confirm deletion</h2>
+      <p>You are about to stop accepting inbound mail for <strong>lists.example.com</strong>. This will:</p>
+      <ul>
+        <li>remove it from <code>relay_domains</code> and the recipient map;</li>
+        <li>stop forwarding to <strong>10.0.0.8:25</strong>;</li>
+        <li>leave outbound sending domains untouched.</li>
+      </ul>
+      <p class="muted">This cannot be undone from a backup of inbound maps alone unless you restore one. Remove the MX if you do not plan to re-add the domain.</p>
+      <div class="actions-row"><button type="button" class="danger">Delete lists.example.com</button></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/inbound-domain.html

@@ -0,0 +1,94 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>lists.example.com — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-inbound-domain" data-page="inbound-domain" data-nav="inbound" data-title="lists.example.com" data-global-only="1">
+<main class="stack">
+  <div>
+    <h1>lists.example.com</h1>
+    <a class="back" href="inbound.html">&larr; All inbound domains</a>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>DNS status <span class="st st-ok">ok</span></h2>
+      <p class="muted">Cached a few minutes — use <em>Re-check</em> after publishing. Unlike outbound, inbound needs an MX pointing at this server.</p>
+      <label>MX <span class="st st-ok">ok</span></label>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">lists.example.com</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">MX</span>
+          </div>
+        </div>
+      <label>Value</label>
+      <span class="code">10 mail.example.org.
+20 mail.primary.example.net.</span>
+      <p class="muted">An MX points at mail.example.org (this server). Other MX values are the domain’s own primaries — they are not an error.</p>
+      <div class="actions-row"><button type="button">Re-check</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card">
+      <h2>Upstream</h2>
+      <p class="muted">Where accepted mail is handed off. Not a mailbox.</p>
+      <label>Host</label><input value="10.0.0.8">
+      <label>Port</label><input value="25">
+      <label>TLS to upstream</label>
+      <select><option>Opportunistic</option><option selected>Required</option><option>Off</option></select>
+      <div class="actions-row"><button type="button">Save upstream</button></div>
+    </div>
+    <div class="card">
+      <h2>MX record to publish</h2>
+      <p class="muted">Add this MX so the internet delivers here. Keep any existing primary MX if this is backup-MX.</p>
+      <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row"><span class="code">lists.example.com</span><button type="button" class="copy">Copy</button></div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">MX</span>
+          </div>
+        </div>
+      <label>Value</label>
+      <div class="code-row"><span class="code">10 mail.example.org.</span><button type="button" class="copy">Copy</button></div>
+    </div>
+  </div>
+  <div class="pair">
+    <div class="card rcpt-mode">
+      <h2>Valid recipients</h2>
+      <p class="muted">Who this domain accepts on port 25. Same idea as an application’s address mode: a list, or any address at the domain.</p>
+      <label>Who to accept</label>
+      <select>
+        <option value="list" selected>Listed addresses only</option>
+        <option value="any">Any recipient at this domain</option>
+      </select>
+      <div class="rcpt-list">
+        <label>Addresses (one per line or comma-separated)</label>
+        <textarea rows="6">staff@lists.example.com
+postmaster@lists.example.com
+abuse@lists.example.com</textarea>
+        <p class="muted">Unknown recipients are rejected at RCPT so this relay does not generate backscatter.</p>
+      </div>
+      <p class="rcpt-any muted">Every address at this domain is accepted and forwarded. Prefer a list unless the upstream rejects unknowns — otherwise this relay may generate backscatter.</p>
+      <div class="actions-row"><button type="button">Save recipients</button></div>
+    </div>
+    <div class="card">
+      <h2>Danger zone</h2>
+      <p class="muted">Stops accepting mail for this domain. Does not touch outbound sending domains.</p>
+      <div class="actions-row"><a class="danger" href="inbound-delete.html">Delete inbound domain</a></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/inbound.html

@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Inbound — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-inbound" data-page="inbound" data-nav="inbound" data-title="Inbound" data-global-only="1">
+<main class="stack">
+  <div class="page-head">
+    <h1>Inbound <span class="tag">1.x</span></h1>
+  </div>
+  <p class="muted">Backup-MX / forwarder. Accepts on port 25 only for listed domains. Recipients are either an allow-list or any address at that domain. Off by default in Compose.</p>
+  <div class="fill">
+    <div class="card">
+      <h2>Forwarding</h2>
+      <form class="measure" action="#" onsubmit="return false">
+        <label for="iname">Add inbound domain</label>
+        <div class="input-row">
+          <input id="iname" placeholder="lists.example.com">
+          <button type="button">Add domain</button>
+        </div>
+      </form>
+      <table class="desk-only">
+        <thead><tr><th>Domain</th><th>DNS</th><th>Upstream</th><th>Recipients</th><th>TLS</th><th></th></tr></thead>
+        <tbody>
+          <tr>
+            <td><a href="inbound-domain.html">lists.example.com</a></td>
+            <td><a class="st st-ok" href="inbound-domain.html">ok</a></td>
+            <td class="muted">10.0.0.8:25</td>
+            <td>12 listed</td>
+            <td><span class="st st-ok">required</span></td>
+            <td class="actions"><a class="danger" href="inbound-delete.html">Delete</a></td>
+          </tr>
+          <tr>
+            <td><a href="inbound-backup.html">backup.example.net</a></td>
+            <td><a class="st st-error" href="inbound-backup.html">error</a></td>
+            <td class="muted">192.0.2.20:25</td>
+            <td>any</td>
+            <td><span class="st st-unknown">off</span></td>
+            <td class="actions"><a class="danger" href="inbound-delete.html">Delete</a></td>
+          </tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li><a href="inbound-domain.html"><span>lists.example.com</span><span class="st st-ok">ok</span><span class="meta">12 listed · 10.0.0.8:25</span></a></li>
+        <li><a href="inbound-backup.html"><span>backup.example.net</span><span class="st st-error">error</span><span class="meta">any recipient · 192.0.2.20:25</span></a></li>
+      </ul>
+      <p class="muted">The <em>DNS</em> badge is the MX check: at least one MX must point at this server. Results are cached for a few minutes; open a domain for the lookup and a <em>Re-check</em> button.</p>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/index.html

@@ -0,0 +1,188 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>SelfPost — макеты панели</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+</head>
+<body class="doc">
+<div class="wrap">
+
+<header>
+  <p class="eyebrow">макеты · не панель</p>
+  <h1>Self<b>Post</b> — полное обновление интерфейса</h1>
+  <p>Проект системы — как собирать экраны, чтобы не чинить пустые колонки, высоту полей и ряды кнопок по одному. Каждый экран — отдельная страница, не простыня с якорями. Знак и палитра из листа утверждения не меняются. HTML в <code>docs/assets/panel-ui/</code>, не вёрстка <code>internal/web</code>.</p>
+  <div class="cta-row">
+    <a class="cta" href="status.html">Открыть Status</a>
+    <a class="cta quiet" href="system.html">Система интерфейса</a>
+    <a class="cta quiet" href="status.html?view=phone">Аварийный телефон</a>
+    <a class="cta quiet" href="status.html?theme=dark">Status, тёмная тема</a>
+  </div>
+</header>
+
+<section>
+  <h2>Система, не рескин</h2>
+  <p>Первый click-through повторил сетку живой панели, поэтому те же сбои чинились по одному. <a href="system.html">Грамматика</a> задаёт регионы (<code>measure</code> / <code>pair</code> / <code>fill</code>), карточку со слотом справки, <code>field-row</code> (Host и Type одной высоты) и <code>actions-row</code>. Макеты собраны только из этого: один экран — один HTML-файл.</p>
+</section>
+
+<section>
+  <h2>Ширина окна</h2>
+  <p>Сейчас оболочка центрируется, колонка контента упирается в <code>64rem</code>, формы ещё уже — <code>48rem</code>. На широком мониторе поля пустые. Растянуть поля на 100% окна нельзя — они становятся нечитаемыми. Две независимые карточки рядом — можно.</p>
+  <h3>Гибрид</h3>
+  <p>Навигация прижата влево. Ops-страницы (Status, Deliveries, очередь, лог, Backup, Settings, DMARC, inbound) занимают остаток до <strong>90rem (~1440px)</strong>. Backup — полный бэкап ‖ импорт. Settings — учётные данные ‖ DMARC (у domain-admin остаётся одна узкая карточка). Таблица Users — <code>fill</code>. Одиночные формы (подтверждения, форма пользователя) остаются <strong>42rem и выровнены влево</strong>. Login и setup — по-прежнему узкий центрированный блок.</p>
+  <div class="compare">
+    <div>
+      <div class="row">сейчас, окно ~1600px</div>
+      <div class="bar">
+        <i class="navc">nav</i>
+        <i class="col" style="width:42%">64rem</i>
+        <i class="empty">пусто</i>
+      </div>
+    </div>
+    <div>
+      <div class="row">макет, ops-страница</div>
+      <div class="bar">
+        <i class="navc">nav</i>
+        <i class="fill">контент до 90rem</i>
+      </div>
+    </div>
+    <div>
+      <div class="row">макет, форма</div>
+      <div class="bar">
+        <i class="navc">nav</i>
+        <i class="col" style="width:28%">42rem</i>
+        <i class="empty">поле не растягивает инпуты</i>
+      </div>
+    </div>
+  </div>
+  <div class="note">На телефоне это не «узкий десктоп». Таблицы из шести колонок складываются в список. Навигация — выезжающая колонка на CSS-checkbox, без обязательного JavaScript (как панели Edit у приложений уже сейчас).</div>
+</section>
+
+<section>
+  <h2>Информационная архитектура</h2>
+  <div class="ia">
+    <div>
+      <h3>Global administrator</h3>
+      <ul>
+        <li>Status</li>
+        <li>Domains → domain → delete</li>
+        <li>Deliveries → message</li>
+        <li>Mail queue</li>
+        <li>System log</li>
+        <li>Inbound <span class="tag">1.x</span> — скрыт, пока <code>INBOUND_RELAY_ENABLE</code> выключен</li>
+        <li>DMARC reports <span class="tag future">candidate</span></li>
+        <li>Backup, Users, Settings</li>
+        <li>Help <span class="tag future">candidate</span> — пункт навбара и drawer с карточек Status и страницы домена</li>
+      </ul>
+    </div>
+    <div>
+      <h3>Domain-admin</h3>
+      <ul>
+        <li>Domains (только назначенные) → domain → DMARC reports этого домена</li>
+        <li>Deliveries → message, включая пояснение retry</li>
+        <li>Settings — только учётные данные панели</li>
+        <li>Help drawer</li>
+        <li>Нет Status, очереди, system log, Backup, Users, inbound, глобального DMARC hub</li>
+      </ul>
+    </div>
+  </div>
+  <p class="muted" style="margin-top:1rem">В прототипе роль, inbound-флаг, ширина и тема переключаются в шапке. <code>contributing</code> и <code>schema-squash</code> экранов не имеют.</p>
+</section>
+
+<section>
+  <h2>Знак и новые иконки</h2>
+  <p>Утверждённый stamp не заменяется. Для узкой шапки телефона предлагается уже существующий SP-значок (фавикон), а не компактный wordmark: на 390px высота важнее, чем прочитать «SelfPost» второй раз.</p>
+  <div class="mark-row">
+    <figure>
+      <img src="../selfpost-stamp.svg" width="220" height="100" alt="Полный знак">
+      <figcaption>эталон · login / setup</figcaption>
+    </figure>
+    <figure>
+      <img src="../selfpost-stamp-compact.svg" width="160" height="73" alt="Компактный знак">
+      <figcaption>колонка навбара</figcaption>
+    </figure>
+    <figure>
+      <img src="../selfpost-icon.svg" width="64" height="64" alt="SP">
+      <figcaption>телефон · шапка drawer</figcaption>
+    </figure>
+  </div>
+  <h3>Иконки новых пунктов</h3>
+  <p class="muted">Тот же штрих 1.5, что у Status / Domains. Не пиктограммы-эмодзи и не заливка.</p>
+  <div class="icons-row">
+    <div class="icon-card">
+      <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M2.5 9.5h11"/><path d="M8 2.75v6.2"/><path d="M5.4 6.4 8 9.05 10.6 6.4"/><path d="M3.2 12.6h9.6"/></svg>
+      <span>Inbound</span>
+    </div>
+    <div class="icon-card">
+      <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M8 1.85 2.75 3.7v4.2c0 3.15 2.15 5.2 5.25 6.25 3.1-1.05 5.25-3.1 5.25-6.25V3.7Z"/><path d="M5.4 8.05 7.15 9.8 10.7 6.2"/></svg>
+      <span>DMARC</span>
+    </div>
+    <div class="icon-card">
+      <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><circle cx="8" cy="8" r="6.25"/><path d="M8 7.2V11.4"/><path d="M8 5.05v.01"/></svg>
+      <span>Help</span>
+    </div>
+  </div>
+</section>
+
+<section>
+  <h2>Экраны</h2>
+  <h3>Система</h3>
+  <div class="screen-index">
+    <a href="system.html">Грамматика и живые образцы</a>
+  </div>
+  <h3>Вход</h3>
+  <div class="screen-index">
+    <a href="login.html">Sign in</a>
+    <a href="setup.html">Create administrator</a>
+  </div>
+  <h3>Текущая панель</h3>
+  <div class="screen-index">
+    <a href="status.html">Status</a>
+    <a href="domains.html">Domains</a>
+    <a href="domain.html">Domain detail</a>
+    <a href="domain-delete.html">Delete domain</a>
+    <a href="deliveries.html">Deliveries</a>
+    <a href="delivery.html">Delivery (deferred + retries)</a>
+    <a href="mail-queue.html">Mail queue + retry policy</a>
+    <a href="system-log.html">System log</a>
+    <a href="backup.html">Backup</a>
+    <a href="users.html">Users</a>
+    <a href="user-form.html">Edit user</a>
+    <a href="user-delete.html">Delete user</a>
+    <a href="settings.html">Settings</a>
+  </div>
+  <h3>Roadmap</h3>
+  <div class="screen-index">
+    <a href="mail-queue.html">queue-retries — карточка на Mail queue</a>
+    <a href="delivery.html">queue-retries — history deferred</a>
+    <a href="inbound.html">Inbound list (колонка DNS = MX)</a>
+    <a href="inbound-domain.html">Inbound domain — DNS ok</a>
+    <a href="inbound-backup.html">Inbound domain — DNS error</a>
+    <a href="inbound-delete.html">Delete inbound domain</a>
+    <a href="status.html?inbound=0">Inbound выключен (пункта нет)</a>
+    <a href="dmarc.html">DMARC reports hub <span class="tag future">candidate</span></a>
+    <a href="dmarc-domain.html">DMARC — domain roll-up</a>
+    <a href="dmarc-report.html">DMARC report — aligned</a>
+    <a href="dmarc-report-fail.html">DMARC report — third-party fail</a>
+    <a href="help.html">Help <span class="tag future">candidate</span></a>
+  </div>
+  <h3>Аварийный телефон</h3>
+  <div class="screen-index">
+    <a href="status.html?view=phone">Status 390px — Overall, then queue/cert, then the rest</a>
+    <a href="mail-queue.html?view=phone">Mail queue 390px</a>
+    <a href="deliveries.html?view=phone">Deliveries 390px — список, не таблица</a>
+    <a href="delivery.html?view=phone">Delivery 390px</a>
+  </div>
+</section>
+
+<section style="border-bottom:none">
+  <h2>Как смотреть</h2>
+  <p>Откройте любой экран из списка — это отдельная страница, не якорь в одном файле. Шапка прототипа — не часть панели: роль, Desktop/Phone, inbound, светлая/тёмная. Копирайт экранов английский, как в продукте. Drawer Help открывается с «?» на Status или с карточек домена; на карточках остаются показания и колонка Detail.</p>
+  <p class="muted">После утверждения макетов вёрстка <code>panel.css</code> и шаблонов — отдельная задача. CSP и progressive enhancement в этом HTML не воспроизводятся один в один: здесь допустимы вещи, которые в панели останутся в файле стилей.</p>
+</section>
+
+</div>
+</body>
+</html>

docs/assets/panel-ui/login.html

@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Sign in — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-login" data-page="login" data-nav="login" data-title="Sign in" data-auth="1">
+<main class="auth">
+  <img class="mark" src="../selfpost-stamp.svg" width="330" height="150" alt="SelfPost">
+  <h1>Sign in</h1>
+  <div class="card">
+    <form action="status.html">
+      <label for="u">Username</label>
+      <input id="u" name="username" autocomplete="username">
+      <label for="p">Password</label>
+      <input id="p" name="password" type="password" autocomplete="current-password">
+      <div class="actions-row"><button type="submit">Sign in</button></div>
+    </form>
+  </div>
+  <p class="version" style="text-align:center">© Mixeme · <a href="#">License (AGPL-3.0)</a></p>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/mail-queue.html

@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Mail queue — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-mail-queue" data-page="mail-queue" data-nav="queue" data-title="Mail queue" data-global-only="1">
+<main class="stack">
+  <h1>Mail queue</h1>
+  <div class="fill">
+    <div class="card">
+      <h2>How delivery retries work</h2>
+      <p class="muted">This Postfix’s policy, read once at panel start. There is no maximum attempt count — only time.</p>
+      <div class="facts retry-facts">
+        <div class="fact"><span class="fact-label">First retry</span><span class="fact-value">5 minutes</span></div>
+        <div class="fact"><span class="fact-label">Later retries</span><span class="fact-value">doubling, cap 1 h 7 min</span></div>
+        <div class="fact"><span class="fact-label">Kept in queue</span><span class="fact-value">5 days</span></div>
+        <div class="fact"><span class="fact-label">Then</span><span class="fact-value">bounced</span></div>
+      </div>
+    </div>
+  </div>
+  <div class="fill">
+    <div class="card">
+      <h2>Pending messages</h2>
+      <table class="desk-only">
+        <thead><tr><th>Queue id</th><th>Age</th><th>From</th><th>To</th><th>Size</th></tr></thead>
+        <tbody>
+          <tr><td class="mono">4C3A1E2F1A</td><td class="time muted">18 min</td><td>billing@example.com</td><td>ada@example.net</td><td>12 KiB</td></tr>
+          <tr><td class="mono">4C3A1E3010</td><td class="time muted">11 min</td><td>news@example.com</td><td>pat@slow.example</td><td>48 KiB</td></tr>
+          <tr><td class="mono">4C3A1E3102</td><td class="time muted">4 min</td><td>billing@example.com</td><td>ada@example.net</td><td>9 KiB</td></tr>
+        </tbody>
+      </table>
+      <ul class="phone-list phone-only">
+        <li><a href="delivery.html"><span>4C3A1E2F1A</span><span class="when">18 min</span><span class="meta">billing@example.com → ada@example.net</span></a></li>
+        <li><a href="delivery.html"><span>4C3A1E3010</span><span class="when">11 min</span><span class="meta">news@example.com → pat@slow.example</span></a></li>
+        <li><a href="delivery.html"><span>4C3A1E3102</span><span class="when">4 min</span><span class="meta">billing@example.com → ada@example.net</span></a></li>
+      </ul>
+      <label>postqueue -p</label>
+      <span class="code">-Queue ID-  --Size-- ----Arrival Time---- -Sender/Recipient-------
+4C3A1E2F1A*    12288 Sat Aug 15 20:14:02  billing@example.com
+                                         ada@example.net
+4C3A1E3010     49152 Sat Aug 15 20:21:18  news@example.com
+                                         pat@slow.example
+-- 3 Kbytes in 3 Requests.</span>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/mock.css

@@ -0,0 +1,715 @@
+/* SelfPost panel UI mockups. Tokens match internal/web/view/static/panel.css.
+   This file is a design artifact, not the panel stylesheet. */
+
+@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@200;300;400;500;600;700&display=swap");
+
+:root {
+  color-scheme: light dark;
+  --font-sans: "IBM Plex Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
+  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
+  --bg: #f4f2ed; --fg: #12161c;
+  --muted: #6b7684;
+  --card-bg: #fff;
+  --border: #dedcd7;
+  --control-border: #cbc8c1;
+  --input-bg: #fff;
+  --code-bg: #efede9;
+  --surface-bg: #eae7e0; --surface-bg-hover: #e0dcd3; --surface-open-bg: #d8d3c8;
+  --nav-active-bg: #ede4de;
+  --accent-fill: #7a3b2e; --accent-fill-hover: #632f25; --accent-text: #7a3b2e;
+  --on-accent: #fff;
+  --flash-bg: #edf6ef; --flash-border: #c2e0cc; --flash-fg: #2c6b43;
+  --credential-bg: #fcf6e4; --credential-border: #e0c874;
+  --danger-fill: #b42318; --danger-fill-hover: #912018;
+  --danger-bg: #fbedea; --danger-border: #efccc4; --danger-fg: #b42318; --danger-bg-hover: #f7dfda;
+  --st-ok-bg: #edf6ef; --st-ok-fg: #2c6b43; --st-ok-border: #c2e0cc;
+  --st-warn-bg: #fbf2e2; --st-warn-fg: #8a5510; --st-warn-border: #ebd5a6;
+  --st-error-bg: #fbedea; --st-error-fg: #b42318; --st-error-border: #efccc4;
+  --st-unknown-bg: #efede9; --st-unknown-fg: #6b7684; --st-unknown-border: #dedcd7;
+  --nav-w: 14rem;
+  --ops-max: 90rem;
+  --form-max: 42rem;
+  --auth-max: 24rem;
+  --gallery-h: 3.1rem;
+}
+
+.dark-tokens {
+  --bg: #16181b; --fg: #e9e6e0;
+  --muted: #9aa1a9;
+  --card-bg: #1d2024;
+  --border: #2c2f34;
+  --control-border: #3a3e44;
+  --input-bg: #14161a;
+  --code-bg: #14161a;
+  --surface-bg: #23262b; --surface-bg-hover: #2c3036; --surface-open-bg: #343941;
+  --nav-active-bg: #2a1f1b;
+  --accent-fill: #8e4535; --accent-fill-hover: #a0503e; --accent-text: #ce7b66;
+  --flash-bg: #132318; --flash-border: #22452f; --flash-fg: #7fcb9b;
+  --credential-bg: #26210d; --credential-border: #5e5013;
+  --danger-fill: #9b2c22; --danger-fill-hover: #b0342a;
+  --danger-bg: #2a1412; --danger-border: #5e2721; --danger-fg: #eb9b92; --danger-bg-hover: #381a17;
+  --st-ok-bg: #132318; --st-ok-fg: #7fcb9b; --st-ok-border: #22452f;
+  --st-warn-bg: #2a2109; --st-warn-fg: #e5be72; --st-warn-border: #5e4b12;
+  --st-error-bg: #2a1412; --st-error-fg: #eb9b92; --st-error-border: #5e2721;
+  --st-unknown-bg: #23262b; --st-unknown-fg: #9aa1a9; --st-unknown-border: #2c2f34;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root { color-scheme: dark; }
+  html:not(.force-light) { }
+}
+
+* { box-sizing: border-box; }
+html { scrollbar-gutter: stable; }
+body {
+  font: 400 15px/1.5 var(--font-sans);
+  margin: 0; background: var(--bg); color: var(--fg);
+}
+
+.ctrl { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
+
+/* —— Gallery chrome (index + prototype toolbar) —— */
+.gallery {
+  position: sticky; top: 0; z-index: 40;
+  display: flex; flex-wrap: wrap; align-items: center; gap: 0.55rem 1rem;
+  min-height: var(--gallery-h);
+  padding: 0.45rem 1rem;
+  background: var(--surface-bg);
+  border-bottom: 1px solid var(--border);
+  font-size: 0.82rem;
+}
+.gallery a { color: var(--accent-text); }
+.gallery .brand-mini {
+  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600;
+  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-text);
+  text-decoration: none;
+}
+.gallery .seg {
+  display: flex; flex-wrap: wrap; align-items: center; gap: 0.2rem 0.35rem;
+}
+.gallery .seg > span { color: var(--muted); margin-right: 0.15rem; }
+.gallery .seg label {
+  margin: 0; font-weight: 500; cursor: pointer;
+  padding: 0.2rem 0.55rem; border: 1px solid var(--control-border);
+  border-radius: 5px; background: var(--card-bg); color: var(--fg);
+}
+#role-global:checked ~ .gallery label[for="role-global"],
+#role-domain:checked ~ .gallery label[for="role-domain"],
+#vp-desktop:checked ~ .gallery label[for="vp-desktop"],
+#vp-phone:checked ~ .gallery label[for="vp-phone"],
+#theme-light:checked ~ .gallery label[for="theme-light"],
+#theme-dark:checked ~ .gallery label[for="theme-dark"] {
+  background: var(--nav-active-bg); color: var(--accent-text);
+  border-color: var(--accent-fill); font-weight: 600;
+}
+.gallery .check-lab {
+  display: flex; align-items: center; gap: 0.35rem; margin: 0; font-weight: 500; cursor: pointer;
+}
+.gallery .check-lab input { width: auto; margin: 0; }
+.tag {
+  display: inline-block; font-family: var(--font-mono); font-size: 0.68rem;
+  font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase;
+  padding: 0.12rem 0.4rem; border-radius: 4px;
+  background: var(--surface-bg); color: var(--muted); border: 1px solid var(--border);
+}
+.tag.future { color: var(--st-warn-fg); border-color: var(--st-warn-border); background: var(--st-warn-bg); }
+
+body:has(#theme-dark:checked) { background: #16181b; color: #e9e6e0; }
+
+#theme-dark:checked ~ .gallery,
+#theme-dark:checked ~ .app,
+#theme-dark:checked ~ .help-drawer {
+  --bg: #16181b; --fg: #e9e6e0;
+  --muted: #9aa1a9;
+  --card-bg: #1d2024;
+  --border: #2c2f34;
+  --control-border: #3a3e44;
+  --input-bg: #14161a;
+  --code-bg: #14161a;
+  --surface-bg: #23262b; --surface-bg-hover: #2c3036; --surface-open-bg: #343941;
+  --nav-active-bg: #2a1f1b;
+  --accent-fill: #8e4535; --accent-fill-hover: #a0503e; --accent-text: #ce7b66;
+  --flash-bg: #132318; --flash-border: #22452f; --flash-fg: #7fcb9b;
+  --credential-bg: #26210d; --credential-border: #5e5013;
+  --danger-fill: #9b2c22; --danger-fill-hover: #b0342a;
+  --danger-bg: #2a1412; --danger-border: #5e2721; --danger-fg: #eb9b92; --danger-bg-hover: #381a17;
+  --st-ok-bg: #132318; --st-ok-fg: #7fcb9b; --st-ok-border: #22452f;
+  --st-warn-bg: #2a2109; --st-warn-fg: #e5be72; --st-warn-border: #5e4b12;
+  --st-error-bg: #2a1412; --st-error-fg: #eb9b92; --st-error-border: #5e2721;
+  --st-unknown-bg: #23262b; --st-unknown-fg: #9aa1a9; --st-unknown-border: #2c2f34;
+  background: var(--bg); color: var(--fg);
+}
+
+/* —— Prototype shell: nav docked left, content uses remaining width —— */
+.app {
+  display: flex; align-items: flex-start; min-height: calc(100vh - var(--gallery-h));
+  background: var(--bg);
+}
+.stage { flex: 1 1 auto; min-width: 0; }
+.nav {
+  position: sticky; top: var(--gallery-h); align-self: stretch;
+  flex: none; width: var(--nav-w);
+  display: flex; flex-direction: column; gap: 0.75rem;
+  padding: 1.1rem 0.85rem 1.4rem;
+  border-right: 1px solid var(--border);
+  background: var(--bg);
+  max-height: calc(100vh - var(--gallery-h)); overflow-y: auto;
+}
+.nav .links, .nav .session { display: flex; flex-direction: column; gap: 0.1rem; }
+.nav .session { margin-top: auto; padding-top: 0.75rem; border-top: 1px solid var(--border); }
+.nav .session .muted { padding: 0 0.6rem; font-size: 0.85rem; overflow-wrap: anywhere; }
+.nav .session-user { display: flex; align-items: center; gap: 0.5rem; }
+.nav .brand { padding: 0; display: block; }
+.nav .brand img { display: block; width: 100%; height: auto; }
+.nav a, .nav [aria-current], .nav .current {
+  display: flex; align-items: center; gap: 0.5rem;
+  padding: 0.35rem 0.6rem; border-radius: 5px; text-decoration: none;
+  color: var(--fg);
+}
+.nav a:hover { background: var(--surface-bg); }
+.nav [aria-current], .nav .current {
+  font-weight: 600; color: var(--accent-text); background: var(--nav-active-bg);
+  box-shadow: inset 2px 0 0 var(--accent-fill);
+}
+body.page-status .n-status,
+body.page-domains .n-domains,
+body.page-domain .n-domains,
+body.page-domain-delete .n-domains,
+body.page-deliveries .n-deliveries,
+body.page-delivery .n-deliveries,
+body.page-mail-queue .n-queue,
+body.page-system-log .n-log,
+body.page-inbound .n-inbound,
+body.page-inbound-domain .n-inbound,
+body.page-inbound-backup .n-inbound,
+body.page-inbound-delete .n-inbound,
+body.page-dmarc .n-dmarc,
+body.page-dmarc-domain .n-dmarc,
+body.page-dmarc-report .n-dmarc,
+body.page-dmarc-report-fail .n-dmarc,
+body.page-backup .n-backup,
+body.page-users .n-users,
+body.page-user-form .n-users,
+body.page-user-delete .n-users,
+body.page-help .n-help,
+body.page-settings .n-settings {
+  font-weight: 600; color: var(--accent-text); background: var(--nav-active-bg);
+  box-shadow: inset 2px 0 0 var(--accent-fill);
+}
+.nav .icon { width: 1rem; height: 1rem; flex: none; }
+.nav button, .nav .btn-ghost {
+  display: flex; align-items: center; gap: 0.5rem;
+  margin: 0; padding: 0.35rem 0.6rem; font: inherit; font-size: 0.95rem; font-weight: 400;
+  color: var(--danger-fg); background: var(--danger-bg); border: 1px solid var(--danger-border);
+  border-radius: 5px; cursor: pointer; text-decoration: none; width: 100%;
+}
+.nav button:hover, .nav .btn-ghost:hover { background: var(--danger-bg-hover); }
+
+.phone-bar { display: none; }
+.phone-bar .icon { width: 1.1rem; height: 1.1rem; }
+.mono { font-family: var(--font-mono); }
+.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
+
+#feat-inbound:checked ~ .gallery label[for="feat-inbound"] {
+  background: var(--nav-active-bg); color: var(--accent-text);
+  border-color: var(--accent-fill);
+}
+.gallery label[for="feat-inbound"] {
+  margin: 0; font-weight: 500; cursor: pointer;
+  padding: 0.2rem 0.55rem; border: 1px solid var(--control-border);
+  border-radius: 5px; background: var(--card-bg); color: var(--fg);
+}
+#role-domain:checked ~ .gallery .g-only { display: none; }
+
+main {
+  flex: 1 1 auto; min-width: 0; width: 100%;
+  padding: 1.5rem 1.5rem 2.5rem;
+}
+main.auth {
+  max-width: none; display: flex; flex-direction: column; align-items: center;
+  padding-top: 3rem;
+}
+main.auth > * { width: 100%; max-width: var(--auth-max); margin-left: auto; margin-right: auto; }
+main.stack > .page-head,
+main.stack > h1 { margin-bottom: 0; }
+main.stack > .back { margin: 0; }
+main.stack > .route { margin-top: 0; margin-bottom: 0; }
+main.stack > p.muted { margin-top: 0; margin-bottom: 0; }
+main.stack > .toolbar { margin-bottom: 0; max-width: var(--ops-max); }
+
+body.page-login .nav,
+body.page-setup .nav,
+body.page-login .phone-bar,
+body.page-setup .phone-bar { display: none !important; }
+body.page-login .app,
+body.page-setup .app { display: block; }
+
+#role-domain:checked ~ .app .g-only { display: none !important; }
+#role-domain:checked ~ .app .pair:has(> .g-only) {
+  display: block;
+  max-width: var(--form-max);
+}
+#feat-inbound:not(:checked) ~ .app .in-only { display: none !important; }
+#feat-inbound:checked ~ .app .in-off { display: none !important; }
+
+h1 { font-size: 1.5rem; font-weight: 300; letter-spacing: -0.01em; margin: 0 0 1rem; }
+h1.subject { overflow-wrap: anywhere; }
+h2 { font-size: 1.05rem; font-weight: 600; margin: 0 0 0.4rem; }
+.mark { display: block; width: 100%; max-width: 24rem; height: auto; margin-bottom: 1.4rem; }
+.card {
+  background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px;
+  padding: 1.25rem 1.4rem; margin: 0;
+}
+.card.narrow { max-width: var(--auth-max); }
+.card + .card { margin-top: 1rem; }
+.card.credential { border-color: var(--credential-border); background: var(--credential-bg); }
+.muted { color: var(--muted); }
+.error { color: var(--danger-fg); margin: 0.6rem 0 0; font-weight: 600; }
+a { color: var(--accent-text); }
+.back { display: block; margin: -0.4rem 0 1rem; }
+.flash {
+  background: var(--flash-bg); border: 1px solid var(--flash-border); color: var(--flash-fg);
+  padding: 0.7rem 1rem; border-radius: 6px; margin-bottom: 1rem;
+}
+.flash.error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-fg); }
+.version { margin-top: 1.6rem; text-align: right; font-size: 0.8rem; color: var(--muted); }
+.version a { color: inherit; }
+
+label { display: block; font-weight: 600; margin: 0.9rem 0 0.3rem; }
+label.check {
+  display: flex; align-items: center; gap: 0.5rem; margin: 0.45rem 0 0; font-weight: 600; cursor: pointer;
+}
+label.check input { width: auto; margin: 0; padding: 0; border: 0; background: none; }
+input, select, textarea {
+  width: 100%; padding: 0.55rem 0.7rem; font-family: inherit; font-size: 1rem;
+  border: 1px solid var(--control-border); border-radius: 5px; background: var(--input-bg); color: inherit;
+}
+textarea { resize: vertical; }
+fieldset {
+  margin: 0.9rem 0 0; padding: 0.55rem 0.85rem 0.85rem;
+  border: 1px solid var(--control-border); border-radius: 5px;
+}
+fieldset legend { padding: 0 0.25rem; font-weight: 600; }
+fieldset > .muted { margin: 0.15rem 0 0.35rem; font-size: 0.85rem; font-weight: 400; }
+
+button, a.btn, a.danger {
+  display: inline-block; margin-top: 1.1rem; padding: 0.6rem 1.1rem;
+  font: inherit; font-size: 1rem; font-weight: 600; text-decoration: none;
+  color: var(--on-accent); background: var(--accent-fill); border: 0; border-radius: 5px; cursor: pointer;
+}
+button:hover, a.btn:hover { background: var(--accent-fill-hover); }
+button.danger, a.danger { background: var(--danger-fill); color: var(--on-accent); }
+button.danger:hover, a.danger:hover { background: var(--danger-fill-hover); }
+form.inline { display: inline; margin: 0; }
+.form-actions {
+  display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center;
+  margin-top: 1.1rem;
+}
+.form-actions > button, .form-actions > a.btn, .form-actions > a.danger { margin-top: 0; }
+
+.st {
+  display: inline-block; padding: 0.14rem 0.45rem 0.28rem; border-radius: 4px;
+  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500; line-height: 1;
+  letter-spacing: 0.02em; vertical-align: middle; border: 1px solid transparent;
+  white-space: nowrap;
+}
+.st-ok { background: var(--st-ok-bg); color: var(--st-ok-fg); border-color: var(--st-ok-border); }
+.st-warn { background: var(--st-warn-bg); color: var(--st-warn-fg); border-color: var(--st-warn-border); }
+.st-error { background: var(--st-error-bg); color: var(--st-error-fg); border-color: var(--st-error-border); }
+.st-unknown { background: var(--st-unknown-bg); color: var(--st-unknown-fg); border-color: var(--st-unknown-border); }
+a.st, a.st:hover { color: inherit; text-decoration: none; }
+
+table { width: 100%; border-collapse: collapse; }
+th, td {
+  text-align: left; padding: 0.5rem 0.45rem; border-bottom: 1px solid var(--border);
+  white-space: nowrap;
+}
+th {
+  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500;
+  text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted);
+}
+td.actions { text-align: right; }
+.metric { white-space: nowrap; }
+.card:has(table) { overflow-x: auto; }
+td.subject span {
+  display: block; max-width: 22rem;
+  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
+}
+
+.code {
+  display: block; white-space: pre; overflow-x: auto; overflow-wrap: normal;
+  word-break: normal; font-family: var(--font-mono);
+  font-size: 0.85rem; background: var(--code-bg); border: 1px solid var(--border);
+  border-radius: 5px; padding: 0.7rem 0.8rem; margin: 0.3rem 0 0;
+}
+.code-row { display: flex; align-items: flex-start; gap: 0.5rem; }
+.code-row .code { flex: 1; min-width: 0; margin-top: 0; padding-top: 0.45rem; padding-bottom: 0.45rem; }
+.input-row { display: flex; align-items: stretch; gap: 0.5rem; }
+.input-row input { flex: 1; min-width: 0; }
+.input-row button { margin-top: 0; flex: none; white-space: nowrap; }
+
+.split {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr));
+  gap: 1rem; margin-top: 1rem;
+}
+h1 + .split, h1 + form > .split { margin-top: 0; }
+.split > .card { min-width: 0; }
+.split > .card + .card { margin-top: 0; }
+.split + .card, .card + .split, form:has(.split) + .card { margin-top: 1rem; }
+#settings form { width: 100%; max-width: none; }
+#settings .split,
+#backup > .split {
+  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
+}
+
+.check-cols {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
+  gap: 1rem 1.2rem; margin-top: 1rem;
+}
+.check-col { min-width: 0; }
+.check-col-title { margin: 0.85rem 0 0.35rem; font-size: 1.05rem; font-weight: 600; }
+.field-pair {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
+  gap: 0 1rem; margin-top: 0.45rem;
+}
+.field-pair > div { min-width: 0; }
+.field-pair label { margin-top: 0.45rem; }
+/* Host / name beside Type — size the type column to that token rather than
+   giving it half the row. Vertical padding matches .code-row .code so Type is
+   the same height as Host when Copy sits beside it. */
+.field-pair.host-type {
+  grid-template-columns: minmax(0, 1fr) auto;
+}
+.field-pair.host-type .code {
+  padding-top: 0.45rem; padding-bottom: 0.45rem;
+}
+.field-type { width: max-content; }
+.field-type .code {
+  width: fit-content; min-width: 2.75rem; text-align: center; box-sizing: border-box;
+}
+
+.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); gap: 0.5rem; margin-top: 1rem; }
+.fact { min-width: 0; padding: 0.5rem 0.7rem; border-radius: 6px; background: var(--surface-bg); }
+.fact-label {
+  display: block; font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500;
+  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted);
+}
+.fact-value { display: block; margin-top: 0.1rem; white-space: nowrap; overflow-x: auto; }
+.fact-value.mono { font-family: var(--font-mono); font-size: 0.85rem; }
+
+.timeline {
+  list-style: none; display: flex; flex-direction: column; gap: 1.1rem;
+  margin: 1rem 0 0; padding: 0.2rem 0 0.2rem 1.4rem; border-left: 2px solid var(--border);
+}
+.event { position: relative; min-width: 0; }
+.event::before {
+  content: ""; position: absolute; left: -1.85rem; top: 0.3rem;
+  width: 0.65rem; height: 0.65rem; border-radius: 50%;
+  background: var(--card-bg); border: 2px solid var(--control-border);
+}
+.event.lvl-ok::before { border-color: var(--st-ok-fg); background: var(--st-ok-bg); }
+.event.lvl-warn::before { border-color: var(--st-warn-fg); background: var(--st-warn-bg); }
+.event.lvl-error::before { border-color: var(--st-error-fg); background: var(--st-error-bg); }
+.event.pending { opacity: 0.7; }
+.event.pending::before { border-style: dashed; }
+.event-time { margin: 0; font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
+.event-title { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin: 0.15rem 0 0; font-weight: 600; }
+.event-detail { margin: 0.2rem 0 0; font-size: 0.9rem; }
+
+.route { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin-top: -0.5rem; margin-bottom: 1rem; }
+.route .addr { font-family: var(--font-mono); font-size: 0.9rem; white-space: nowrap; overflow-x: auto; max-width: 100%; }
+.route .arrow { color: var(--muted); }
+
+table.log { margin-top: 1rem; }
+table.log th:first-child, table.log td.time { width: 1%; }
+table.log td.log-text {
+  font-family: var(--font-mono);
+  font-size: 0.8rem; white-space: pre;
+}
+
+button.copy, .actions button, .actions > label.toggle, .actions a.danger {
+  margin: 0; padding: 0.45rem 0.7rem; font-size: 0.8rem; font-weight: 600;
+  border-radius: 5px; white-space: nowrap;
+  background: var(--surface-bg); color: var(--accent-text); border: 1px solid var(--control-border);
+}
+button.copy:hover, .actions button:hover, .actions > label.toggle:hover { background: var(--surface-bg-hover); }
+.actions button.danger, .actions a.danger { color: var(--danger-fg); background: var(--danger-bg); border-color: var(--danger-border); }
+.actions { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
+
+.apps { list-style: none; margin: 1rem 0 0; padding: 0; }
+.app-item { padding: 0.9rem 0; border-top: 1px solid var(--border); }
+.app-item:last-child { padding-bottom: 0; }
+.app-login { margin: 0; font-family: var(--font-mono); font-weight: 600; }
+.app-addr { margin: 0.15rem 0 0; white-space: nowrap; overflow-x: auto; }
+.app-item .actions { margin-top: 0.7rem; }
+.app-item .actions > .panel-toggle {
+  position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; pointer-events: none;
+}
+.app-item .actions > .panel { display: none; flex: 1 0 100%; }
+.app-item .actions > .t-edit:checked ~ .panel-edit { display: block; }
+.app-item .actions > .t-edit:checked ~ .for-edit { background: var(--surface-open-bg); }
+.app-item .actions > .panel button { margin-top: 0.9rem; }
+
+.encrypt { margin-top: 1.2rem; }
+.encrypt-fields {
+  display: none; margin-top: 0.8rem; margin-left: 1.6rem; padding-left: 0.9rem;
+  border-left: 2px solid var(--border);
+}
+.encrypt:has(input[type="checkbox"]:checked) .encrypt-fields { display: block; }
+.encrypt-fields label { margin-top: 0.7rem; }
+
+.rcpt-list, .rcpt-any { display: none; }
+.rcpt-mode:has(option[value="list"]:checked) .rcpt-list { display: block; }
+.rcpt-mode:has(option[value="any"]:checked) .rcpt-any { display: block; }
+
+.toolbar {
+  display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; align-items: end;
+  padding: 0.85rem 1rem; margin-bottom: 1rem;
+  background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px;
+}
+.toolbar .field { flex: 1 1 10rem; min-width: 8rem; }
+.toolbar label { margin-top: 0; font-size: 0.8rem; }
+.toolbar button { margin-top: 0; }
+
+/* Status: hero + dense grid */
+.status-hero {
+  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.75rem 1.2rem;
+  padding: 1rem 1.25rem; margin-bottom: 1rem;
+  background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px;
+}
+.status-hero.attn,
+.card.attn { border-color: var(--st-warn-border); }
+.status-hero h1 { margin: 0; }
+.status-hero .lead { margin: 0; color: var(--fg); }
+.status-grid {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr));
+  gap: 1rem;
+}
+.status-grid .card { margin: 0; }
+.status-grid .card.attn { border-color: var(--st-warn-border); }
+.metric-row {
+  display: flex; justify-content: space-between; gap: 0.75rem; align-items: baseline;
+  padding: 0.35rem 0; border-bottom: 1px solid var(--border); font-size: 0.92rem;
+}
+.metric-row:last-child { border-bottom: 0; }
+.metric-row .k { font-weight: 600; }
+.metric-row .v { font-family: var(--font-mono); font-size: 0.85rem; }
+meter { width: 5rem; height: 0.7rem; vertical-align: middle; margin-right: 0.4rem; }
+.card-head {
+  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.5rem;
+}
+.card-head h2 { margin: 0; }
+.help-link {
+  flex: none; width: 1.35rem; height: 1.35rem; display: inline-flex; align-items: center; justify-content: center;
+  border-radius: 50%; border: 1px solid var(--control-border); color: var(--muted);
+  text-decoration: none; font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
+  background: var(--surface-bg); cursor: pointer; margin: 0;
+}
+.help-link:hover { color: var(--accent-text); border-color: var(--accent-fill); }
+
+.page-head {
+  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1rem;
+  margin-bottom: 1rem;
+}
+.page-head h1 { margin: 0; }
+
+/* Compact retry policy */
+.retry-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.5rem; margin-top: 0.7rem; }
+
+.phone-list { display: none; list-style: none; margin: 0; padding: 0; }
+.phone-list li { border-bottom: 1px solid var(--border); }
+.phone-list a,
+.phone-list .item {
+  display: grid; grid-template-columns: 1fr auto; gap: 0.15rem 0.7rem;
+  padding: 0.75rem 0.1rem; text-decoration: none; color: var(--fg);
+}
+.phone-list .when { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
+.phone-list .meta { grid-column: 1 / -1; font-family: var(--font-mono); font-size: 0.82rem; white-space: nowrap; overflow-x: auto; }
+.phone-list .subj { grid-column: 1 / -1; margin: 0; }
+
+/* Help drawer — CSS checkbox, no script required */
+.help-drawer {
+  display: none; position: fixed; top: var(--gallery-h); right: 0; bottom: 0;
+  width: min(26rem, 100vw); z-index: 30;
+  background: var(--card-bg); border-left: 1px solid var(--border);
+  padding: 1.25rem 1.35rem 2rem; overflow-y: auto;
+}
+html:has(input[name="help"]:checked):not(:has(#help-off:checked)) .help-drawer,
+html:has(input[name="help"]:checked):not(:has(#help-off:checked)) .help-scrim { display: block; }
+.help-pane { display: none; }
+html:has(#help-index:checked) .help-pane-index,
+html:has(#help-status:checked) .help-pane-status,
+html:has(#help-password:checked) .help-pane-password,
+html:has(#help-dns:checked) .help-pane-dns,
+html:has(#help-records:checked) .help-pane-records,
+html:has(#help-dmarc:checked) .help-pane-dmarc,
+html:has(#help-connection:checked) .help-pane-connection,
+html:has(#help-apps:checked) .help-pane-apps,
+html:has(#help-domain-settings:checked) .help-pane-domain-settings,
+html:has(#help-export:checked) .help-pane-export { display: block; }
+.help-scrim {
+  display: none; position: fixed; inset: var(--gallery-h) 0 0 0; z-index: 25;
+  background: rgba(18, 22, 28, 0.28);
+}
+.help-drawer h2 { margin-top: 1.2rem; }
+.help-drawer h2:first-of-type,
+.help-pane h2 { margin-top: 0; }
+.help-drawer .toc { list-style: none; margin: 0.7rem 0 0; padding: 0; }
+.help-drawer .toc li { margin: 0.35rem 0 0; }
+.help-drawer .toc label {
+  margin: 0; font-weight: 600; color: var(--accent-text); cursor: pointer;
+}
+.help-drawer .more { margin-top: 1.2rem; font-size: 0.85rem; }
+.help-drawer .more label {
+  display: inline; margin: 0; font-weight: 600; color: var(--accent-text); cursor: pointer;
+}
+.help-close {
+  position: absolute; top: 0.8rem; right: 0.8rem; margin: 0; padding: 0.35rem 0.6rem;
+  font-size: 0.8rem; font-weight: 600; background: var(--surface-bg); color: var(--fg);
+  border: 1px solid var(--control-border); border-radius: 5px; cursor: pointer;
+}
+
+/* Phone preview (gallery toggle) and real narrow windows */
+.nav-burger { display: none; }
+
+#vp-phone:checked ~ .app {
+  position: relative;
+  width: 390px; margin: 0.75rem auto 2rem; min-height: 760px;
+  border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
+  max-height: none;
+}
+#vp-phone:checked ~ .app .nav {
+  position: absolute; top: 0; left: 0; bottom: 0;
+  height: auto; max-height: none;
+  width: min(16rem, 82%); z-index: 20;
+  transform: translateX(-110%);
+  border-right: 1px solid var(--border); background: var(--card-bg);
+}
+#nav-open:checked ~ .app .nav { transform: translateX(0); }
+#vp-phone:checked ~ .app .phone-bar {
+  display: flex; align-items: center; gap: 0.55rem;
+  margin: 0; padding: 0.65rem 0.85rem;
+  border-bottom: 1px solid var(--border); background: var(--card-bg);
+}
+#vp-phone:checked ~ .app .nav-burger {
+  display: inline-flex; align-items: center; justify-content: center;
+  width: 2.1rem; height: 2.1rem; margin: 0; padding: 0;
+  border: 1px solid var(--control-border); border-radius: 5px;
+  background: var(--surface-bg); cursor: pointer;
+}
+#vp-phone:checked ~ .app .phone-mark { width: 1.7rem; height: 1.7rem; }
+#vp-phone:checked ~ .app .phone-bar .grow { flex: 1; font-weight: 600; }
+#vp-phone:checked ~ .app main { padding: 1.5rem 0.9rem 2rem; }
+#vp-phone:checked ~ .app .desk-only { display: none !important; }
+#vp-phone:checked ~ .app .phone-only { display: block; }
+#vp-phone:checked ~ .app .phone-list { display: block; }
+#vp-phone:checked ~ .app .status-grid { display: flex; flex-direction: column; }
+#vp-phone:checked ~ .app .status-grid .attn { order: -1; }
+#vp-phone:checked ~ .app .pair { grid-template-columns: 1fr; }
+#vp-phone:checked ~ .app .split,
+#vp-phone:checked ~ .app .check-cols,
+#vp-phone:checked ~ .app .field-pair:not(.host-type),
+#vp-phone:checked ~ .app .facts,
+#vp-phone:checked ~ .app .retry-facts {
+  grid-template-columns: 1fr;
+}
+#vp-phone:checked ~ .app td.subject span { max-width: none; }
+#vp-phone:checked ~ .help-drawer { width: 100vw; }
+
+.phone-only { display: none; }
+
+@media (max-width: 52rem) {
+  .app { min-height: calc(100vh - var(--gallery-h)); }
+  .nav {
+    position: fixed; top: var(--gallery-h); left: 0; bottom: 0;
+    z-index: 20; width: min(16rem, 84vw); max-height: none;
+    transform: translateX(-110%);
+    border-right: 1px solid var(--border); background: var(--card-bg);
+  }
+  #nav-open:checked ~ .app .nav { transform: translateX(0); }
+  .phone-bar {
+    display: flex; align-items: center; gap: 0.55rem;
+    margin: 0; padding: 0.65rem 0.85rem;
+    border-bottom: 1px solid var(--border); background: var(--card-bg);
+  }
+  .nav-burger {
+    display: inline-flex; align-items: center; justify-content: center;
+    width: 2.1rem; height: 2.1rem; margin: 0; padding: 0;
+    border: 1px solid var(--control-border); border-radius: 5px;
+    background: var(--surface-bg); cursor: pointer;
+  }
+  .phone-mark { width: 1.7rem; height: 1.7rem; }
+  .phone-bar .grow { flex: 1; font-weight: 600; }
+  main { padding: 1.5rem 0.9rem 2rem; }
+  .desk-only { display: none !important; }
+  .phone-only, .phone-list { display: block; }
+  .status-grid { display: flex; flex-direction: column; }
+  .status-grid .attn { order: -1; }
+  .split, .pair, #settings .split, #backup > .split,
+  .check-cols, .field-pair:not(.host-type), .facts, .retry-facts { grid-template-columns: 1fr; }
+  .help-drawer { width: 100vw; }
+}
+
+/* Index page */
+.wrap { max-width: 58rem; margin: 0 auto; padding: 2.5rem 1.25rem 5rem; }
+.wrap > header { border-bottom: 2px solid var(--accent-fill); padding-bottom: 1.5rem; margin-bottom: 0.5rem; }
+.eyebrow {
+  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
+  text-transform: uppercase; color: var(--accent-text); margin: 0 0 0.7rem;
+}
+.wrap h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 200; }
+.wrap h1 b { font-weight: 600; }
+.wrap > header p { margin: 0; max-width: 62ch; color: var(--muted); }
+.wrap section { border-bottom: 1px solid var(--border); padding: 2.2rem 0; }
+.wrap h2 {
+  font-size: 0.8rem; font-weight: 500; margin: 0 0 1.1rem;
+  letter-spacing: 0.1em; text-transform: uppercase; font-family: var(--font-mono); color: var(--muted);
+}
+.wrap h3 { font-size: 1.05rem; font-weight: 600; margin: 1.2rem 0 0.4rem; }
+.note {
+  background: #f1eae4; border-left: 2px solid var(--accent-fill);
+  padding: 0.9rem 1rem; font-size: 0.92rem; line-height: 1.6; max-width: 64ch; margin-top: 1rem;
+}
+#theme-dark:checked ~ .doc .note { background: #2a1f1b; }
+.compare {
+  display: grid; grid-template-columns: 1fr; gap: 0.75rem; margin-top: 0.8rem;
+}
+.compare .row {
+  font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted);
+}
+.bar {
+  display: flex; height: 2.1rem; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; background: var(--card-bg);
+}
+.bar i { display: flex; align-items: center; justify-content: center; font-style: normal; font-size: 0.7rem; }
+.bar .navc { width: 14%; background: var(--surface-bg); color: var(--fg); border-right: 1px solid var(--border); }
+.bar .col { background: var(--nav-active-bg); color: var(--accent-text); }
+.bar .empty { flex: 1; background: var(--code-bg); color: var(--muted); }
+.bar .fill { flex: 1; background: var(--st-ok-bg); color: var(--st-ok-fg); }
+.ia { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
+@media (max-width: 40rem) { .ia { grid-template-columns: 1fr; } }
+.ia ul { margin: 0.3rem 0 0; padding-left: 1.1rem; }
+.ia li { margin: 0.2rem 0; }
+.screen-index { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 0.4rem 1.5rem; }
+.screen-index a { display: block; padding: 0.25rem 0; }
+.icons-row { display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: end; margin-top: 0.8rem; }
+.icon-card {
+  background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px;
+  padding: 1rem 1.1rem 0.85rem; text-align: center; min-width: 7.5rem;
+}
+.icon-card svg { width: 1.5rem; height: 1.5rem; display: block; margin: 0 auto 0.45rem; }
+.icon-card span { display: block; font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); }
+.mark-row { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: end; }
+.mark-row figure { margin: 0; }
+.mark-row figcaption { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); margin-top: 0.4rem; }
+
+.cta {
+  display: inline-block; margin-top: 1rem; padding: 0.65rem 1.2rem;
+  background: var(--accent-fill); color: var(--on-accent); text-decoration: none;
+  font-weight: 600; border-radius: 5px;
+}
+.cta:hover { background: var(--accent-fill-hover); color: var(--on-accent); }
+.cta-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
+.cta.quiet {
+  background: var(--surface-bg); color: var(--accent-text); border: 1px solid var(--control-border);
+}
+.cta.quiet:hover { background: var(--surface-bg-hover); color: var(--accent-text); }

docs/assets/panel-ui/settings.html

@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Settings — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-settings" data-page="settings" data-nav="settings" data-title="Settings">
+<main class="stack">
+  <h1>Settings</h1>
+  <form class="stack" action="#" onsubmit="return false">
+    <div class="pair">
+      <div class="card">
+        <h2>Panel credentials</h2>
+        <p class="muted">These are the credentials for this control panel only. Applications keep their own logins and passwords, which are not affected.</p>
+        <label>Username</label><input value="admin" autocomplete="username">
+        <label>Current password</label><input type="password" autocomplete="current-password">
+        <label>New password</label><input type="password" autocomplete="new-password">
+        <label>Confirm new password</label><input type="password">
+        <div class="actions-row"><button type="button">Save changes</button></div>
+        <p class="muted">Leave both new-password fields empty to change the username or DMARC address only. Changing the password signs out every other session; this one stays signed in.</p>
+      </div>
+      <div class="card g-only">
+        <h2>DMARC aggregate reports</h2>
+        <p class="muted">Default <code>rua=</code> for every sending domain (overridable per domain). When ingest is on, this can be an address SelfPost accepts.</p>
+        <label>Default report address</label>
+        <input type="email" value="dmarc@mail.example.org">
+        <p class="muted">When <code>rua=</code> points at another domain, that hub must publish a report-authorisation record. <a href="dmarc.html">DMARC reports</a> in the panel.</p>
+        <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row"><span class="code">mail.example.org._report._dmarc.example.com</span><button type="button" class="copy">Copy</button></div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+        <label>Value</label>
+        <div class="code-row"><span class="code">v=DMARC1;</span><button type="button" class="copy">Copy</button></div>
+        <label>Report authorization DNS <span class="st st-ok">ok</span></label>
+        <p class="muted">Published at mail.example.org._report._dmarc.example.com — aggregate reports addressed to dmarc@mail.example.org are authorised.</p>
+      </div>
+    </div>
+  </form>
+  <div class="fill g-only">
+    <div class="card" id="rate-limits">
+      <h2>Sending rate limits</h2>
+      <p class="muted">Level 1 is set in Compose; restart the container to change it. Domain and application ceilings live on each domain’s page.</p>
+      <div class="check-cols">
+        <div class="check-col">
+          <p class="check-col-title">Level 1 — per client IP</p>
+          <span class="code">100 messages / 60 seconds</span>
+          <p class="muted"><code>RATE_LIMIT_MESSAGES_PER_IP</code> / <code>RATE_LIMIT_WINDOW_SECONDS</code>. Hard ceiling for every connecting IP; the panel cannot raise a domain or application limit above this.</p>
+        </div>
+        <div class="check-col">
+          <p class="check-col-title">Level 2 — domain</p>
+          <p class="muted">Optional ceiling for <em>all</em> senders on a domain. When unset, only level 1 applies. Must be ≤ level 1.</p>
+        </div>
+        <div class="check-col">
+          <p class="check-col-title">Level 2 — application</p>
+          <p class="muted">Optional override for trusted IPs: a ceiling strictly above the domain limit (still ≤ level 1). Those IPs skip the domain check; everyone else stays under the domain (or level 1).</p>
+        </div>
+      </div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/setup.html

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Create administrator — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-setup" data-page="setup" data-nav="setup" data-title="Create administrator" data-auth="1">
+<main class="auth">
+  <img class="mark" src="../selfpost-stamp.svg" width="330" height="150" alt="SelfPost">
+  <h1>Create administrator</h1>
+  <div class="card">
+    <p class="muted">This one-time link creates the single panel administrator. After you submit, the link stops working for good.</p>
+    <form action="status.html">
+      <label>Username</label>
+      <input autocomplete="username">
+      <label>Password</label>
+      <input type="password" autocomplete="new-password">
+      <label>Confirm password</label>
+      <input type="password" autocomplete="new-password">
+      <div class="actions-row"><button type="submit">Create administrator</button></div>
+    </form>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/shell.js

@@ -0,0 +1,276 @@
+/* Shared chrome for panel UI page mockups. Each screen is its own HTML file;
+   this script injects radios, gallery, nav, sprite, and the help drawer so
+   file:// viewing does not need a module fetch. */
+(function () {
+  if (document.body.dataset.shell === "1") return;
+  document.body.dataset.shell = "1";
+  var main = document.querySelector("main");
+  if (!main) return;
+
+  var page = document.body.getAttribute("data-page") || "";
+  var navKey = document.body.getAttribute("data-nav") || page;
+  var title = document.body.getAttribute("data-title") || document.title;
+  var globalOnly = document.body.getAttribute("data-global-only") === "1";
+
+  document.body.insertAdjacentHTML("afterbegin",
+    '<input class="ctrl" type="radio" name="role" id="role-global" checked>' +
+    '<input class="ctrl" type="radio" name="role" id="role-domain">' +
+    '<input class="ctrl" type="radio" name="vp" id="vp-desktop" checked>' +
+    '<input class="ctrl" type="radio" name="vp" id="vp-phone">' +
+    '<input class="ctrl" type="radio" name="theme" id="theme-light" checked>' +
+    '<input class="ctrl" type="radio" name="theme" id="theme-dark">' +
+    '<input class="ctrl" type="checkbox" id="feat-inbound" checked>' +
+    '<input class="ctrl" type="checkbox" id="nav-open">' +
+    '<input class="ctrl" type="radio" name="help" id="help-off" checked>' +
+    '<input class="ctrl" type="radio" name="help" id="help-index">' +
+    '<input class="ctrl" type="radio" name="help" id="help-status">' +
+    '<input class="ctrl" type="radio" name="help" id="help-password">' +
+    '<input class="ctrl" type="radio" name="help" id="help-dns">' +
+    '<input class="ctrl" type="radio" name="help" id="help-records">' +
+    '<input class="ctrl" type="radio" name="help" id="help-dmarc">' +
+    '<input class="ctrl" type="radio" name="help" id="help-connection">' +
+    '<input class="ctrl" type="radio" name="help" id="help-apps">' +
+    '<input class="ctrl" type="radio" name="help" id="help-domain-settings">' +
+    '<input class="ctrl" type="radio" name="help" id="help-export">'
+  );
+
+  var q = new URLSearchParams(location.search);
+  if (q.get("view") === "phone") document.getElementById("vp-phone").checked = true;
+  if (q.get("role") === "domain") document.getElementById("role-domain").checked = true;
+  if (q.get("theme") === "dark") document.getElementById("theme-dark").checked = true;
+  if (q.get("inbound") === "0") document.getElementById("feat-inbound").checked = false;
+
+  var gallery =
+    '<header class="gallery">' +
+      '<a class="brand-mini" href="index.html">Макеты</a>' +
+      '<div class="seg"><span>Роль</span>' +
+        '<label for="role-global">Global</label>' +
+        '<label for="role-domain">Domain-admin</label></div>' +
+      '<div class="seg"><span>Ширина</span>' +
+        '<label for="vp-desktop">Desktop</label>' +
+        '<label for="vp-phone">Phone</label></div>' +
+      '<div class="seg"><span>Тема</span>' +
+        '<label for="theme-light">Light</label>' +
+        '<label for="theme-dark">Dark</label></div>' +
+      '<label class="g-only" for="feat-inbound">Inbound</label>' +
+      '<a href="index.html">Оглавление</a>' +
+      '<a href="system.html">Система</a>' +
+    "</header>";
+
+  var sprite =
+    '<svg class="sprite" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">' +
+      '<symbol id="i-status" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M1.25 8.5h2.9L6.2 3.4l3.1 9.4 1.9-4.3h3.55"/></symbol>' +
+      '<symbol id="i-domains" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="8" cy="8" r="6.25"/><path d="M1.9 8h12.2"/><path d="M8 1.75c1.85 1.8 2.8 4 2.8 6.25S9.85 12.45 8 14.25C6.15 12.45 5.2 10.25 5.2 8S6.15 3.55 8 1.75Z"/></symbol>' +
+      '<symbol id="i-deliveries" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M14.25 1.75 1.6 6.6l5 2.05 2.05 5z"/><path d="M14.25 1.75 6.6 8.65"/></symbol>' +
+      '<symbol id="i-queue" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M1.75 9.5h3.3l1 1.75h3.9l1-1.75h3.3v3.05a1.2 1.2 0 0 1-1.2 1.2H2.95a1.2 1.2 0 0 1-1.2-1.2z"/><path d="M1.75 9.5 3.4 3.2a1.25 1.25 0 0 1 1.2-.95h6.8a1.25 1.25 0 0 1 1.2.95l1.65 6.3"/></symbol>' +
+      '<symbol id="i-log" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M3.75 1.75h5.1l3.4 3.4v8.05a1.05 1.05 0 0 1-1.05 1.05H3.75a1.05 1.05 0 0 1-1.05-1.05V2.8a1.05 1.05 0 0 1 1.05-1.05Z"/><path d="M8.85 1.75v3.4h3.4"/><path d="M5.35 8.6h5.3M5.35 11.1h3.5"/></symbol>' +
+      '<symbol id="i-inbound" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M2.5 9.5h11"/><path d="M8 2.75v6.2"/><path d="M5.4 6.4 8 9.05 10.6 6.4"/><path d="M3.2 12.6h9.6"/></symbol>' +
+      '<symbol id="i-dmarc" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M8 1.85 2.75 3.7v4.2c0 3.15 2.15 5.2 5.25 6.25 3.1-1.05 5.25-3.1 5.25-6.25V3.7Z"/><path d="M5.4 8.05 7.15 9.8 10.7 6.2"/></symbol>' +
+      '<symbol id="i-backup" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="2.75" y="1.75" width="10.5" height="12.5" rx="1.15"/><path d="M2.75 8h10.5"/><path d="M6.4 4.85h3.2M6.4 11.15h3.2"/></symbol>' +
+      '<symbol id="i-users" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M10.9 3.1a2.1 2.1 0 0 1 0 4.2"/><path d="M14.7 14.25a3.8 3.8 0 0 0-3.9-3.65"/><circle cx="5.5" cy="5.2" r="2.5"/><path d="M1.4 14.25a4.8 4.8 0 0 1 8.2 0"/></symbol>' +
+      '<symbol id="i-help" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="8" cy="8" r="6.25"/><path d="M8 7.2V11.4"/><path d="M8 5.05v.01"/></symbol>' +
+      '<symbol id="i-settings" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.25" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/></symbol>' +
+      '<symbol id="i-account" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="8" cy="5.4" r="2.75"/><path d="M2.9 14.25a5.1 5.1 0 0 1 10.2 0"/></symbol>' +
+      '<symbol id="i-out" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M6.1 14.25H3.65a1.15 1.15 0 0 1-1.15-1.15V2.9a1.15 1.15 0 0 1 1.15-1.15H6.1"/><path d="M10.6 11.15 13.75 8 10.6 4.85"/><path d="M13.75 8H6.35"/></symbol>' +
+      '<symbol id="i-menu" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"><path d="M2.5 4h11M2.5 8h11M2.5 12h11"/></symbol>' +
+    "</svg>";
+
+  function icon(id) {
+    return '<svg class="icon"><use href="#' + id + '"/></svg>';
+  }
+
+  var navHtml =
+    '<nav class="nav">' +
+      '<a class="brand" href="status.html"><img src="../selfpost-stamp-compact.svg" width="220" height="100" alt="SelfPost"></a>' +
+      '<div class="links">' +
+        '<a class="n-status g-only" href="status.html">' + icon("i-status") + "Status</a>" +
+        '<a class="n-domains" href="domains.html">' + icon("i-domains") + "Domains</a>" +
+        '<a class="n-deliveries" href="deliveries.html">' + icon("i-deliveries") + "Deliveries</a>" +
+        '<a class="n-queue g-only" href="mail-queue.html">' + icon("i-queue") + "Mail queue</a>" +
+        '<a class="n-log g-only" href="system-log.html">' + icon("i-log") + "System log</a>" +
+        '<a class="n-inbound g-only in-only" href="inbound.html">' + icon("i-inbound") + "Inbound</a>" +
+        '<a class="n-dmarc g-only" href="dmarc.html">' + icon("i-dmarc") + 'DMARC <span class="tag future">1.x</span></a>' +
+        '<a class="n-backup g-only" href="backup.html">' + icon("i-backup") + "Backup</a>" +
+        '<a class="n-users g-only" href="users.html">' + icon("i-users") + "Users</a>" +
+        '<a class="n-help" href="help.html">' + icon("i-help") + 'Help <span class="tag future">1.x</span></a>' +
+      "</div>" +
+      '<div class="session">' +
+        '<span class="session-user muted">' + icon("i-account") + "User: admin</span>" +
+        '<a class="n-settings" href="settings.html">' + icon("i-settings") + "Settings</a>" +
+        '<a class="btn-ghost" href="login.html">' + icon("i-out") + "Sign out</a>" +
+      "</div>" +
+    "</nav>";
+
+  var phone =
+    '<div class="phone-bar">' +
+      '<label class="nav-burger" for="nav-open" title="Menu">' + icon("i-menu") + "</label>" +
+      '<img class="phone-mark" src="../selfpost-icon.svg" width="28" height="28" alt="">' +
+      '<span class="grow phone-title"></span>' +
+      '<label class="help-link" for="help-index" title="Help">?</label>' +
+    "</div>";
+
+  var help =
+    '<label class="help-scrim" for="help-off"></label>' +
+    '<aside class="help-drawer">' +
+      '<label class="help-close" for="help-off">Close</label>' +
+      '<article class="help-pane help-pane-index">' +
+        "<h2>Help</h2>" +
+        "<p>Short notes for the card you opened — not a second copy of the guide.</p>" +
+        '<p class="muted">Status</p>' +
+        '<ul class="toc"><li><label for="help-status">Status checks</label></li></ul>' +
+        '<p class="muted">Domain</p>' +
+        '<ul class="toc">' +
+          '<li><label for="help-password">New application password</label></li>' +
+          '<li><label for="help-dns">DNS status</label></li>' +
+          '<li><label for="help-records">DKIM and SPF records</label></li>' +
+          '<li><label for="help-dmarc">DMARC record</label></li>' +
+          '<li><label for="help-connection">Connection settings</label></li>' +
+          '<li><label for="help-apps">Applications</label></li>' +
+          '<li><label for="help-domain-settings">Domain settings</label></li>' +
+          '<li><label for="help-export">Export domain</label></li>' +
+        "</ul></article>" +
+      '<article class="help-pane help-pane-status">' +
+        "<h2>Status checks</h2>" +
+        "<p>The cards keep the readings. This drawer is what used to sit under them as paragraphs.</p>" +
+        "<h2>Machine</h2>" +
+        "<p>CPU and memory are the container’s readings. Network is a short rate window. These numbers explain load; they do not replace the queue.</p>" +
+        "<h2>TLS certificate</h2>" +
+        "<p>Presented on port 465. Issued and renewed outside SelfPost. Warn = expires soon; error = missing, and submission will fail.</p>" +
+        "<h2>Hostname / reverse DNS</h2>" +
+        "<p>The hostname must forward to this IP and the PTR must come back to the same name. Set PTR at the provider.</p>" +
+        "<h2>Mail queue</h2>" +
+        "<p>Deferred mail is retried on a time schedule (first delay, doubling cap, queue lifetime). There is no “attempt 3 of N”.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-password">' +
+        "<h2>New application password</h2>" +
+        "<p>Shown <strong>once only</strong> and not stored. Copy it now — if it is lost, regenerate a new one. The previous password stops working immediately.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-dns">' +
+        "<h2>DNS status</h2>" +
+        "<p>The badge is the worst of DKIM, SPF and DMARC. Results are cached a few minutes — use <em>Re-check</em> after publishing.</p>" +
+        "<p>SPF is a shallow check: the literal address only, no <code>include:</code> or <code>redirect=</code>. Report authorization is required only when <code>rua=</code> points at a domain this server does not accept.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-records">' +
+        "<h2>DKIM and SPF records</h2>" +
+        "<p>DKIM is not a secret. The selector on this page is the one this server signs with. Merge the SPF example into an existing record if the domain already has one — do not publish a second TXT.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-dmarc">' +
+        "<h2>DMARC record</h2>" +
+        "<p><code>p=none</code> does not affect delivery. Tighten to <code>p=quarantine</code> then <code>p=reject</code> once reports look clean. The report address is set under Domain settings (or the Settings default).</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-connection">' +
+        "<h2>Connection settings</h2>" +
+        "<p>Same host for every domain. Authenticate with an application login from this page. Auth is required on every port. The password is shown once at create or regenerate.</p>" +
+        "<p>465 is implicit TLS; 587 is STARTTLS submission when that port is enabled.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-apps">' +
+        "<h2>Applications</h2>" +
+        "<p>SASL logins for this domain. Login is unique across domains; letters, digits, <code>.</code>, <code>-</code> and <code>_</code>. The password is shown once.</p>" +
+        "<p>Address mode is which From addresses this application may use: any address of the domain, or a fixed list. A trusted-IP override gives those clients a higher ceiling than the domain (still ≤ level 1) and skips the domain check; everyone else uses the domain limit if set, otherwise level 1.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-domain-settings">' +
+        "<h2>Domain settings</h2>" +
+        "<p>Aggregate reports (<code>rua=</code>) inherit the Settings default, or you override them per domain. Level 2 is an optional ceiling for all senders on this domain; it must be ≤ level 1. Application overrides live on each application.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+      '<article class="help-pane help-pane-export">' +
+        "<h2>Export domain</h2>" +
+        "<p>The file is a secret: it carries the DKIM key and application passwords, so published DNS does not have to change on the other instance. Transfer it securely, or encrypt it as <code>.spde</code>.</p>" +
+        '<p class="more muted"><label for="help-index">All topics</label></p></article>' +
+    "</aside>";
+
+  var app = document.createElement("div");
+  app.className = "app";
+  app.innerHTML = navHtml + '<div class="stage">' + phone + "</div>";
+  main.parentNode.insertBefore(app, main);
+  app.insertAdjacentHTML("beforebegin", gallery + sprite);
+  app.querySelector(".stage").appendChild(main);
+  app.insertAdjacentHTML("afterend", help);
+
+  var cur = app.querySelector(".n-" + navKey);
+  if (cur) cur.setAttribute("aria-current", "page");
+  var grow = app.querySelector(".phone-title");
+  if (grow) grow.textContent = title;
+
+  var skip = { "index.html": 1, "system.html": 1, "app.html": 1 };
+
+  function qs() {
+    var p = new URLSearchParams();
+    if (document.getElementById("vp-phone").checked) p.set("view", "phone");
+    if (document.getElementById("role-domain").checked) p.set("role", "domain");
+    if (document.getElementById("theme-dark").checked) p.set("theme", "dark");
+    if (!document.getElementById("feat-inbound").checked) p.set("inbound", "0");
+    var s = p.toString();
+    return s ? "?" + s : "";
+  }
+
+  function withQuery(href) {
+    if (!href) return href;
+    if (href.charAt(0) === "#" || /^(https?:|mailto:|javascript:)/i.test(href)) return href;
+    var hash = "";
+    var path = href;
+    var hashAt = href.indexOf("#");
+    if (hashAt >= 0) {
+      hash = href.slice(hashAt);
+      path = href.slice(0, hashAt);
+    }
+    var qAt = path.indexOf("?");
+    var file = qAt >= 0 ? path.slice(0, qAt) : path;
+    var extra = qAt >= 0 ? path.slice(qAt + 1) : "";
+    var base = file.split("/").pop();
+    if (!base || !/\.html$/i.test(base) || skip[base]) return href;
+    var p = new URLSearchParams(extra);
+    var curQs = new URLSearchParams(qs().replace(/^\?/, ""));
+    ["view", "role", "theme", "inbound"].forEach(function (k) {
+      if (curQs.has(k)) p.set(k, curQs.get(k));
+      else p.delete(k);
+    });
+    var s = p.toString();
+    return base + (s ? "?" + s : "") + hash;
+  }
+
+  function rewriteLinks() {
+    document.querySelectorAll("a[href]").forEach(function (a) {
+      var raw = a.getAttribute("href");
+      if (!raw) return;
+      a.setAttribute("href", withQuery(raw));
+    });
+  }
+
+  function brandHref() {
+    var brand = document.querySelector(".nav .brand");
+    if (!brand) return;
+    brand.setAttribute("href", withQuery(
+      document.getElementById("role-domain").checked ? "domains.html" : "status.html"
+    ));
+  }
+
+  function gate() {
+    brandHref();
+    if (!document.getElementById("role-domain").checked) return;
+    if (globalOnly) location.replace(withQuery("domains.html"));
+  }
+
+  function syncUrl() {
+    if (history.replaceState) {
+      history.replaceState(null, "", location.pathname.split("/").pop() + qs() + location.hash);
+    }
+    rewriteLinks();
+    brandHref();
+    gate();
+  }
+
+  ["role-global", "role-domain", "vp-desktop", "vp-phone", "theme-light", "theme-dark", "feat-inbound"].forEach(function (id) {
+    var el = document.getElementById(id);
+    if (el) el.addEventListener("change", syncUrl);
+  });
+
+  document.querySelectorAll(".nav a").forEach(function (a) {
+    a.addEventListener("click", function () {
+      var open = document.getElementById("nav-open");
+      if (open) open.checked = false;
+    });
+  });
+
+  rewriteLinks();
+  gate();
+})();

docs/assets/panel-ui/status.html

@@ -0,0 +1,125 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Status — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-status" data-page="status" data-nav="status" data-title="Status" data-global-only="1">
+<main class="stack">
+  <div class="page-head">
+    <h1>Status</h1>
+    <label class="help-link" for="help-status" title="What these checks mean">?</label>
+  </div>
+
+  <div class="fill">
+    <div class="card" id="overall">
+      <h2>Overall <span class="st st-warn">warn</span></h2>
+      <p class="muted">Running, with warnings below.</p>
+    </div>
+  </div>
+
+  <div class="pair">
+    <div class="card attn" id="queue">
+      <h2>Mail queue <span class="st st-warn">warn</span></h2>
+      <p>3 Kbytes in 3 Requests.</p>
+      <div class="actions-row"><a class="btn" href="mail-queue.html">View queue</a></div>
+    </div>
+    <div class="card" id="certificate">
+      <h2>TLS certificate <span class="st st-ok">ok</span></h2>
+      <label>Expires</label>
+      <span class="code">2026-11-02 12:00 UTC</span>
+      <p class="muted">Valid for another 78 day(s).</p>
+    </div>
+  </div>
+
+  <div class="pair">
+    <div class="card" id="sockets">
+      <h2>Milter sockets <span class="st st-ok">ok</span></h2>
+      <table>
+        <thead><tr><th>Milter</th><th>State</th><th>Detail</th></tr></thead>
+        <tbody>
+          <tr><td>OpenDKIM</td><td><span class="st st-ok">ok</span></td><td class="muted">Listening</td></tr>
+          <tr><td>send-log</td><td><span class="st st-ok">ok</span></td><td class="muted">Listening</td></tr>
+        </tbody>
+      </table>
+    </div>
+    <div class="card" id="hostname">
+      <h2>Hostname and reverse DNS <span class="st st-ok">ok</span></h2>
+      <label>Server hostname</label>
+      <span class="code">mail.example.org</span>
+      <label>Forward and reverse lookup</label>
+      <span class="code">203.0.113.10 → mail.example.org</span>
+      <p class="muted">mail.example.org resolves to 203.0.113.10 and the reverse lookup points back at it.</p>
+      <div class="actions-row"><button type="button">Re-check DNS</button></div>
+    </div>
+  </div>
+
+  <div class="fill in-only" id="inbound-status">
+    <div class="card">
+      <h2>Inbound <span class="st st-warn">warn</span></h2>
+      <p><code>INBOUND_RELAY_ENABLE</code> is on. Port 25 accepts mail for 2 domains and forwards it upstream — not to local mailboxes.</p>
+      <p class="muted">One domain has no MX pointing at this server. Recipients are a list or any address at the domain. Open Inbound for the list, MX checks, upstream, and recipient maps.</p>
+      <p><a href="inbound.html">Inbound domains</a></p>
+    </div>
+  </div>
+
+  <div class="pair">
+    <div class="card" id="machine">
+      <h2>Machine <span class="st st-ok">ok</span></h2>
+      <table>
+        <thead><tr><th class="metric">Resource</th><th>Usage</th><th>Detail</th></tr></thead>
+        <tbody>
+          <tr>
+            <td class="metric">CPU</td>
+            <td class="metric"><meter value="12" min="0" max="100" low="70" high="90" optimum="10">12%</meter> 12%</td>
+            <td class="muted">4 cores · 4 threads</td>
+          </tr>
+          <tr>
+            <td class="metric">Memory</td>
+            <td class="metric"><meter value="41" min="0" max="100" low="70" high="90" optimum="10">41%</meter> 41%</td>
+            <td class="muted">1.6 GiB used of 4.0 GiB.</td>
+          </tr>
+          <tr>
+            <td class="metric">Network</td>
+            <td class="metric">↓ 2.0 KiB/s<br>↑ 1.0 KiB/s</td>
+            <td class="muted"><div>eth0: 1.0 MiB in, 512.0 KiB out</div></td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+    <div class="card" id="processes">
+      <h2>Processes <span class="st st-ok">ok</span></h2>
+      <table>
+        <thead><tr><th>Program</th><th>State</th><th>Detail</th></tr></thead>
+        <tbody>
+          <tr><td>opendkim</td><td><span class="st st-ok">RUNNING</span></td><td class="muted">pid 21, uptime 3 days, 4:12:01</td></tr>
+          <tr><td>panel</td><td><span class="st st-ok">RUNNING</span></td><td class="muted">pid 18, uptime 3 days, 4:12:03</td></tr>
+          <tr><td>postfix</td><td><span class="st st-ok">RUNNING</span></td><td class="muted">pid 42, uptime 3 days, 4:11:58</td></tr>
+          <tr><td>postfix-reload</td><td><span class="st st-ok">STOPPED</span></td><td class="muted">Not started</td></tr>
+          <tr><td>cert-reload</td><td><span class="st st-ok">STOPPED</span></td><td class="muted">Not started</td></tr>
+          <tr><td>logrotate</td><td><span class="st st-ok">STOPPED</span></td><td class="muted">Not started</td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+
+  <div class="fill">
+    <div class="card" id="configuration">
+      <h2>Configuration</h2>
+      <p class="muted">Regenerates the OpenDKIM and Postfix configuration from the
+      database and reloads both daemons. Use it if you edited the files by hand,
+      restored a backup, or the running configuration looks out of step with the
+      domain and application lists. It does not touch the mail queue or the TLS
+      certificate, and it is safe to run at any time.</p>
+      <div class="actions-row"><button type="button">Reload configuration</button></div>
+    </div>
+  </div>
+  <p class="version">SelfPost 1.2.3 · © Mixeme · <a href="#">License (AGPL-3.0)</a></p>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/system-log.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>System log — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-system-log" data-page="system-log" data-nav="log" data-title="System log" data-global-only="1">
+<main class="stack">
+  <h1>System log</h1>
+  <div class="fill">
+    <div class="card">
+      <h2>Recent log entries</h2>
+      <span class="code">Aug 15 20:14:08 mail postfix/smtp[230]: 4C3A1E2F1A: to=&lt;ada@example.net&gt;, relay=mx.example.net[198.51.100.20]:25, delay=6, delays=0.2/0.1/0.4/5.3, dsn=4.2.1, status=deferred (450 4.2.1 mailbox busy)
+Aug 15 20:14:02 mail postfix/qmgr[119]: 4C3A1E2F1A: from=&lt;billing@example.com&gt;, size=12288, nrcpt=1 (queue active)
+Aug 15 20:14:02 mail postfix/smtpd[221]: 4C3A1E2F1A: client=203.0.113.40[203.0.113.40], sasl_method=PLAIN, sasl_username=billing
+Aug 15 20:11:40 mail postfix/smtp[228]: 4B19D0AA01: to=&lt;list-bounces@example.net&gt;, relay=mx.example.net[198.51.100.20]:25, delay=0.9, status=sent (250 2.0.0 Ok)
+Aug 15 20:02:11 mail postfix/smtp[226]: 4B19C0BB12: to=&lt;noreply@blocked.example&gt;, status=bounced (host mx.blocked.example[203.0.113.99] said: 550 5.7.1 rejected)</span>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/system.css

@@ -0,0 +1,128 @@
+/* Panel UI system primitives.
+   Source of truth: system.html. Screens are separate HTML files composed from
+   these classes. Do not “fix” empty columns, Host/Type height, or split
+   actions by one-off rules — compose with these instead. */
+
+.stack {
+  display: flex; flex-direction: column; gap: 1rem;
+  width: 100%; min-width: 0;
+}
+.stack > .card,
+.stack > .pair,
+.stack > .measure,
+.stack > .fill { margin-top: 0; }
+.stack > .card + .card { margin-top: 0; }
+
+.measure { width: 100%; max-width: var(--form-max); min-width: 0; }
+
+.fill { width: 100%; max-width: var(--ops-max); min-width: 0; }
+.fill > .card { margin-top: 0; }
+.fill .card:has(table) { overflow-x: auto; }
+.card > .measure { margin-bottom: 1rem; }
+
+/* Two peer jobs. One child → reading measure (domain-admin Settings).
+   Never a full-width lonely card on an ops page. */
+.pair {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
+  gap: 1rem;
+  width: 100%; max-width: var(--ops-max); min-width: 0;
+}
+.pair > * { min-width: 0; }
+.card > .stack { min-width: 0; }
+.pair > .card { margin-top: 0; }
+.pair > .card + .card { margin-top: 0; }
+.pair:has(> :only-child) {
+  display: block;
+  max-width: var(--form-max);
+}
+
+.actions-row {
+  display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center;
+  margin-top: 1.1rem;
+}
+.actions-row > button,
+.actions-row > a.btn,
+.actions-row > a.danger { margin-top: 0; }
+
+/* Two labelled controls on one row. Labels share row 1, values share row 2
+   so they are the same height by construction — not by matching padding. */
+.field-row {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  grid-template-rows: auto minmax(2.5rem, auto);
+  column-gap: 1rem;
+  align-items: stretch;
+  margin-top: 0.45rem;
+}
+.field-row.equal { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
+.field-row > .field { display: contents; }
+.field-row > .field:first-child > * { grid-column: 1; }
+.field-row > .field:last-child > * { grid-column: 2; }
+.field-row > .field > label { grid-row: 1; margin-top: 0.45rem; }
+.field-row > .field > :not(label) {
+  grid-row: 2; align-self: stretch; min-width: 0;
+  margin-top: 0.3rem; box-sizing: border-box;
+}
+.field-row > .field > .code,
+.field-row > .field > .code-row {
+  height: 100%;
+}
+.field-row > .field > .code {
+  display: flex; align-items: center;
+  padding-top: 0.45rem; padding-bottom: 0.45rem;
+}
+.field-row > .field:last-child > .code {
+  width: fit-content; min-width: 2.75rem;
+  justify-content: center; text-align: center;
+}
+.field-row .code-row {
+  display: flex; align-items: stretch; gap: 0.5rem; height: 100%;
+}
+.field-row .code-row .code {
+  flex: 1; min-width: 0; margin-top: 0; height: auto;
+  display: flex; align-items: center;
+  padding-top: 0.45rem; padding-bottom: 0.45rem;
+}
+.field-row .code-row .copy { margin-top: 0; align-self: stretch; }
+
+.card-head {
+  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
+  margin-bottom: 0.5rem;
+}
+.card-head h2 { margin: 0; }
+
+@media (max-width: 52rem) {
+  .pair { grid-template-columns: 1fr; }
+  /* field-row stays two columns: Type is a token, not a second form. */
+}
+
+/* Specimens on the system page */
+.sys-wrap { max-width: 70rem; }
+.sys-wrap > header p,
+.sys-wrap section > p,
+.sys-wrap li { max-width: 68ch; }
+.sys-toc {
+  display: flex; flex-wrap: wrap; gap: 0.35rem 1.1rem;
+  margin: 1rem 0 0; padding: 0; list-style: none;
+}
+.sys-toc a { font-size: 0.92rem; }
+.specimen {
+  margin: 1rem 0 0; padding: 0.9rem 1rem 1.1rem;
+  border: 1px dashed var(--border); border-radius: 6px; background: var(--code-bg);
+}
+.specimen > figcaption {
+  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em;
+  text-transform: uppercase; color: var(--muted); margin: 0 0 0.7rem;
+}
+.specimen.bad {
+  border-color: var(--danger-border); background: var(--danger-bg);
+}
+.specimen.bad > figcaption { color: var(--danger-fg); }
+.recipes {
+  width: 100%; margin-top: 0.8rem; font-size: 0.92rem;
+}
+.recipes th, .recipes td { white-space: normal; vertical-align: top; }
+.recipes code { font-size: 0.82rem; }
+.forbid { margin: 0.4rem 0 0; padding-left: 1.1rem; }
+.forbid li { margin: 0.35rem 0; }

docs/assets/panel-ui/system.html

@@ -0,0 +1,298 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>SelfPost — система панели</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="doc">
+<div class="wrap sys-wrap">
+
+<header>
+  <p class="eyebrow">система · не рескин</p>
+  <h1>Self<b>Post</b> — грамматика интерфейса</h1>
+  <p>Это проект системы. Экраны складываются из регионов и контролов. Запрещённые состояния нельзя «починить паддингом» — их не из чего собрать. Знак, кирпич и IBM Plex не меняются. Живая панель (<code>internal/web</code>) пока не трогается.</p>
+  <div class="cta-row">
+    <a class="cta" href="#regions">Регионы</a>
+    <a class="cta quiet" href="#controls">Контролы</a>
+    <a class="cta quiet" href="#recipes">Экраны</a>
+    <a class="cta quiet" href="status.html">Макеты экранов</a>
+  </div>
+  <ul class="sys-toc">
+    <li><a href="#why">Зачем</a></li>
+    <li><a href="#regions">Регионы</a></li>
+    <li><a href="#card">Карточка</a></li>
+    <li><a href="#controls">Контролы</a></li>
+    <li><a href="#actions">Действия</a></li>
+    <li><a href="#forbid">Нельзя</a></li>
+    <li><a href="#recipes">Рецепты экранов</a></li>
+    <li><a href="#phone">Телефон</a></li>
+    <li><a href="#apply">Как внедрять</a></li>
+  </ul>
+</header>
+
+<section id="why">
+  <h2>Зачем</h2>
+  <p>Первый макет скопировал грамматику живой панели: страница помечается <code>ops</code> или <code>form</code>, карточки стопкой, пара полей — два независимых <code>.code</code>, Save внутри <code>&lt;form&gt;</code>, Delete снаружи. Дальше каждая мелочь чинилась отдельно — как в <code>panel.css</code> годами. Новый интерфейс должен <strong>не давать собрать</strong> пустую колонку, разные высоты Host/Type и кнопки на двух строках.</p>
+  <p>Три оси, которые больше не выбираются «на глаз» у каждой страницы:</p>
+  <ol>
+    <li><strong>Регион</strong> — как блок занимает ширину окна.</li>
+    <li><strong>Карточка</strong> — заголовок, справка, тело, действия.</li>
+    <li><strong>Контрол</strong> — одно поле или пара полей одной высоты.</li>
+  </ol>
+</section>
+
+<section id="regions">
+  <h2>Регионы</h2>
+  <p>Страница — это <code>stack</code> регионов, не класс на <code>&lt;main&gt;</code>. Оболочка одна: навбар прижат влево, контент забирает остаток. Навбар не прыгает, когда меняется содержимое.</p>
+  <table class="recipes">
+    <thead><tr><th>Регион</th><th>Ширина</th><th>Когда</th></tr></thead>
+    <tbody>
+      <tr>
+        <td><code>measure</code></td>
+        <td>до 42rem, влево</td>
+        <td>Одна читаемая форма: login, setup, подтверждение удаления, форма пользователя. Не «вся страница Settings».</td>
+      </tr>
+      <tr>
+        <td><code>pair</code></td>
+        <td>две колонки до 90rem</td>
+        <td>Две равноправные задачи на одном экране. Один ребёнок — сам сжимается в <code>measure</code> (domain-admin без DMARC).</td>
+      </tr>
+      <tr>
+        <td><code>fill</code></td>
+        <td>до 90rem</td>
+        <td>Таблица, лог, DNS-статус, список приложений. Ячейки не переносят однострочные значения; карточка скроллится по X.</td>
+      </tr>
+      <tr>
+        <td><code>stack</code></td>
+        <td>колонка с зазором</td>
+        <td>Вертикальный порядок регионов. Зазор даёт <code>gap</code>, не <code>.card + .card</code>.</td>
+      </tr>
+    </tbody>
+  </table>
+
+  <figure class="specimen bad">
+    <figcaption>Нельзя — страница-форма, две задачи стопкой</figcaption>
+    <div class="measure">
+      <div class="card">
+        <h2>Full backup</h2>
+        <p class="muted">Карточка узкая. Справа пустое поле на 1600px.</p>
+        <button type="button">Download</button>
+      </div>
+      <div class="card">
+        <h2>Import a domain</h2>
+        <p class="muted">Вторая задача под первой — та же пустота.</p>
+        <button type="button">Import</button>
+      </div>
+    </div>
+  </figure>
+
+  <figure class="specimen">
+    <figcaption>Надо — pair</figcaption>
+    <div class="pair">
+      <div class="card">
+        <h2>Full backup</h2>
+        <p class="muted">Секрет. Шифрование — внутри карточки, поля не растягиваются на 1440px.</p>
+        <div class="actions-row"><button type="button">Download full backup</button></div>
+      </div>
+      <div class="card">
+        <h2>Import a domain</h2>
+        <p class="muted">Тот же экран, вторая задача. Не «ещё одна форма ниже».</p>
+        <div class="actions-row"><button type="button">Import domain</button></div>
+      </div>
+    </div>
+  </figure>
+</section>
+
+<section id="card">
+  <h2>Карточка</h2>
+  <p>Один хром: <code>card-head</code> (заголовок + слот «?»), тело, при необходимости <code>actions-row</code>. Справка — часть хрома, её не расставляют после того, как карточки уже собраны. Нет «?» — слот пустой, заголовки соседних карточек всё равно на одной линии.</p>
+  <p>Показания (очередь, PTR, CPU) остаются на карточке. В drawer уходит только то, чего на карточке быть не должно: что такое kernel counter, зачем PTR у провайдера, почему пароль показывают один раз.</p>
+  <figure class="specimen">
+    <figcaption>Хром карточки</figcaption>
+    <div class="pair">
+      <div class="card">
+        <div class="card-head">
+          <h2>DNS status <span class="st st-ok">ok</span></h2>
+          <span class="help-link" title="What these checks mean">?</span>
+        </div>
+        <p class="muted">Чтение и Re-check здесь. Абзац «зачем MX» — в справке.</p>
+      </div>
+      <div class="card">
+        <div class="card-head">
+          <h2>Danger zone</h2>
+        </div>
+        <p class="muted">Без «?»: действие очевидное. Карточка всё равно пара к форме, не на всю ширину.</p>
+        <div class="actions-row"><a class="danger" href="#forbid">Delete inbound domain</a></div>
+      </div>
+    </div>
+  </figure>
+</section>
+
+<section id="controls">
+  <h2>Контролы</h2>
+  <p>Одно поле — <code>field</code> (подпись + контроль). Два поля в ряд — <code>field-row</code>: подписи в первой сетке-строке, значения во второй. Высота значений общая, потому что это одна строка грида, а не два блока с подобранным padding. Баг «Type ниже Host» (<code>b0ebe06</code>) из этой разметки не собирается.</p>
+  <p><code>field-row</code> с узкой второй колонкой — Host / name ‖ Type. <code>field-row equal</code> — два равноправных инпута (лимит и окно).</p>
+
+  <figure class="specimen">
+    <figcaption>field-row — Host ‖ Type, с Copy и без</figcaption>
+    <div class="pair">
+      <div class="card">
+        <h2>With Copy</h2>
+        <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <div class="code-row">
+              <span class="code">mail._domainkey.example.com</span>
+              <button type="button" class="copy">Copy</button>
+            </div>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">TXT</span>
+          </div>
+        </div>
+      </div>
+      <div class="card">
+        <h2>Lookup, no Copy</h2>
+        <div class="field-row">
+          <div class="field">
+            <label>Host / name</label>
+            <span class="code">lists.example.com</span>
+          </div>
+          <div class="field">
+            <label>Type</label>
+            <span class="code">MX</span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </figure>
+
+  <figure class="specimen">
+    <figcaption>field-row equal — лимит ‖ окно</figcaption>
+    <div class="measure">
+      <div class="card">
+        <h2>Level-2 rate limit</h2>
+        <div class="field-row equal">
+          <div class="field">
+            <label>Message limit</label>
+            <input value="40">
+          </div>
+          <div class="field">
+            <label>Window (seconds)</label>
+            <input value="60">
+          </div>
+        </div>
+      </div>
+    </div>
+  </figure>
+</section>
+
+<section id="actions">
+  <h2>Действия</h2>
+  <p>Primary, secondary и danger — всегда <code>actions-row</code>. Для вёрстки неважно, POST это или переход на confirm: ряд один. Форма либо оборачивает всю карточку, либо кнопки несут <code>form=</code>. Нельзя оставить Submit внутри блочной формы, а Delete — следующим соседом: блок формы занимает строку целиком.</p>
+  <figure class="specimen">
+    <figcaption>Save и Delete в одном ряду</figcaption>
+    <div class="measure">
+      <div class="card">
+        <h2>Edit user</h2>
+        <label>Username</label>
+        <input value="ops-alerts">
+        <div class="actions-row">
+          <button type="button">Save</button>
+          <a class="danger" href="#forbid">Delete user</a>
+        </div>
+      </div>
+    </div>
+  </figure>
+</section>
+
+<section id="forbid">
+  <h2>Нельзя</h2>
+  <p>Если хочется добавить правило «только на этой странице» — сначала проверить, какого региона не хватило.</p>
+  <ul class="forbid">
+    <li>Класс на <code>main</code> (<code>ops</code> / <code>form</code>) как способ выбрать ширину. Ширину выбирает регион.</li>
+    <li>Одиночная карточка на 90rem с двумя полями ввода. Это <code>measure</code> или <code>pair</code>.</li>
+    <li>Danger zone отдельным <code>fill</code>. Она вторая колонка последней пары (получатели ‖ удалить, экспорт ‖ удалить).</li>
+    <li>Два <code>.code</code> рядом с разным padding, чтобы «почти совпало». Только <code>field-row</code>.</li>
+    <li>Submit внутри <code>&lt;form&gt;</code>, danger-ссылка после <code>&lt;/form&gt;</code>.</li>
+    <li>Перенос однострочного поля, адреса, статуса, hostname. <code>nowrap</code> + горизонтальный скролл карточки.</li>
+    <li>Status из одних бейджей без Detail / без строки очереди / без PTR.</li>
+    <li>Телефон как уменьшенный десктоп с шестиколоночной таблицей. Таблица → список; <code>pair</code> → одна колонка; <code>field-row</code> остаётся парой.</li>
+    <li>Копировать разметку <code>internal/web/view/templates</code> «как есть» в макет. Рецепт экрана — ниже, не шаблон Go.</li>
+  </ul>
+</section>
+
+<section id="recipes">
+  <h2>Рецепты экранов</h2>
+  <p>Экраны — отдельные HTML-файлы рядом с этой спецификацией. Собираются только так:</p>
+  <table class="recipes">
+    <thead><tr><th>Экран</th><th>Стек регионов</th></tr></thead>
+    <tbody>
+      <tr>
+        <td><a href="login.html">Login</a> / <a href="setup.html">setup</a></td>
+        <td>центр оболочки, <code>measure</code> 24rem, полный stamp</td>
+      </tr>
+      <tr>
+        <td><a href="status.html">Status</a></td>
+        <td><code>stack</code>: overall → <code>pair</code> очередь‖TLS → <code>pair</code> milters‖PTR → inbound если есть → <code>pair</code> machine‖processes → configuration. На карточках остаются числа и Detail.</td>
+      </tr>
+      <tr>
+        <td><a href="domains.html">Domains</a> / <a href="inbound.html">Inbound</a> / <a href="deliveries.html">Deliveries</a> / <a href="system-log.html">log</a> / <a href="mail-queue.html">queue</a></td>
+        <td><code>fill</code> таблица. Добавление домена — поле в той же карточке списка (<code>measure</code> внутри, не вторая карточка и не инпут на 90rem).</td>
+      </tr>
+      <tr>
+        <td><a href="domain.html">Domain</a></td>
+        <td><code>fill</code> DNS status → <code>pair</code> DKIM/SPF ‖ DMARC → <code>pair</code> connection ‖ add app → <code>fill</code> applications → <code>pair</code> domain settings (две половины) → <code>pair</code> export ‖ danger. «?» на рабочих карточках.</td>
+      </tr>
+      <tr>
+        <td><a href="inbound-domain.html">Inbound domain</a></td>
+        <td><code>fill</code> MX DNS → <code>pair</code> upstream ‖ MX to publish → <code>pair</code> recipients ‖ danger</td>
+      </tr>
+      <tr>
+        <td><a href="dmarc.html">DMARC</a></td>
+        <td>hub: <code>pair</code> ingest ‖ this week, затем <code>fill</code> список отчётов. Домен: <a href="dmarc-domain.html">roll-up</a> (<code>pair</code> 7 days ‖ third-party, <code>fill</code> reports + sources). Один XML: <a href="dmarc-report.html">просмотр</a> — <code>pair</code> report ‖ policy, <code>fill</code> records. Не дашборд, не <code>ruf=</code>.</td>
+      </tr>
+      <tr>
+        <td><a href="backup.html">Backup</a></td>
+        <td><code>pair</code> full backup ‖ import</td>
+      </tr>
+      <tr>
+        <td><a href="settings.html">Settings</a></td>
+        <td>global: <code>pair</code> credentials ‖ DMARC, затем <code>fill</code> rate limits. Domain-admin: один ребёнок в <code>pair</code> → сам <code>measure</code></td>
+      </tr>
+      <tr>
+        <td><a href="users.html">Users</a></td>
+        <td><code>fill</code> таблица. <a href="user-form.html">Create/Edit</a> — <code>measure</code> + <code>actions-row</code></td>
+      </tr>
+      <tr>
+        <td><a href="domain-delete.html">Confirm delete</a></td>
+        <td><code>measure</code> одна карточка</td>
+      </tr>
+    </tbody>
+  </table>
+</section>
+
+<section id="phone">
+  <h2>Телефон</h2>
+  <p>Аварийный доступ, не продукт. <code>pair</code> складывается в одну колонку. Таблица заменяется списком (как сейчас в прототипе). <code>field-row</code> не складывается: Type — токен. Навбар — выезжающая колонка на checkbox, без обязательного JS. Знак в шапке — SP-иконка, не второй wordmark.</p>
+</section>
+
+<section id="apply" style="border-bottom:none">
+  <h2>Как внедрять</h2>
+  <ol>
+    <li>Новый экран или правка макета — только классы из <code>system.css</code> (<code>stack</code>, <code>pair</code>, <code>measure</code>, <code>fill</code>, <code>field-row</code>, <code>actions-row</code>).</li>
+    <li>Не добавлять исключения в <code>mock.css</code> «для этой страницы», если это ширина, высота пары полей или ряд кнопок.</li>
+    <li>Click-through — отдельные страницы (<code>status.html</code>, <code>domain.html</code>, …), не простыня с якорями. Оболочка общая: <code>shell.js</code>.</li>
+    <li>Вёрстка <code>internal/web</code> — отдельная задача после утверждения системы, не параллельный рескин шаблонов.</li>
+  </ol>
+  <p class="muted">Классы живут в <code>docs/assets/panel-ui/system.css</code>. Этот файл — спецификация. Экраны — <a href="status.html">status.html</a> и соседние страницы; оглавление — <a href="index.html">index.html</a>.</p>
+</section>
+
+</div>
+</body>
+</html>

docs/assets/panel-ui/user-delete.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Delete ops-alerts — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-user-delete" data-page="user-delete" data-nav="users" data-title="Delete user" data-global-only="1">
+<main class="stack">
+  <div>
+    <h1>Delete ops-alerts</h1>
+    <a class="back" href="user-form.html">&larr; Back to ops-alerts</a>
+  </div>
+  <div class="measure">
+    <div class="card">
+      <h2>Confirm deletion</h2>
+      <p>You are about to delete the panel user <strong>ops-alerts</strong>. A signed-in session for this user stops working immediately.</p>
+      <div class="actions-row"><button type="button" class="danger">Delete ops-alerts</button></div>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/user-form.html

@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Edit user — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-user-form" data-page="user-form" data-nav="users" data-title="Edit user" data-global-only="1">
+<main class="stack">
+  <div>
+    <h1>Edit user</h1>
+    <a class="back" href="users.html">&larr; Back to users</a>
+  </div>
+  <div class="measure">
+    <div class="card">
+      <form action="#" onsubmit="return false">
+        <label>Username</label>
+        <input value="ops-alerts">
+        <label>Password (leave empty to keep)</label>
+        <input type="password">
+        <label>Role</label>
+        <select><option selected>Domain administrator</option><option>Global administrator</option></select>
+        <fieldset>
+          <legend>Assigned domains</legend>
+          <p class="muted">Required for domain administrators.</p>
+          <label class="check"><input type="checkbox"> example.com</label>
+          <label class="check"><input type="checkbox" checked> alerts.example.com</label>
+        </fieldset>
+        <div class="actions-row">
+          <button type="button">Save</button>
+          <a class="danger" href="user-delete.html">Delete user</a>
+        </div>
+      </form>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/assets/panel-ui/users.html

@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Users — SelfPost mockups</title>
+<link rel="icon" href="../selfpost-icon-16.svg" type="image/svg+xml">
+<link rel="stylesheet" href="mock.css">
+<link rel="stylesheet" href="system.css">
+</head>
+<body class="page-users" data-page="users" data-nav="users" data-title="Users" data-global-only="1">
+<main class="stack">
+  <h1>Users</h1>
+  <div class="fill">
+    <div class="card">
+      <p><a href="user-form.html">Create user</a></p>
+      <table>
+        <thead><tr><th>Username</th><th>Role</th><th>Domains</th><th></th></tr></thead>
+        <tbody>
+          <tr><td>admin</td><td>Global</td><td class="muted">All</td><td class="actions"><a href="user-form.html">Edit</a></td></tr>
+          <tr><td>ops-alerts</td><td>Domain admin</td><td class="muted">alerts.example.com</td><td class="actions"><a href="user-form.html">Edit</a></td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</main>
+<script src="shell.js"></script>
+</body>
+</html>

docs/development.md

@@ -93,8 +93,9 @@ mechanics → Haiku. Reviewers must not be the author of the code under review.
 ## External libraries
 
 The project is **AGPL-3.0** ([LICENSE](../LICENSE)). Copyright holder and
-third-party notices: [NOTICE](../NOTICE). New Go dependencies must be
-permissive or GPL-family (see
+third-party notices: [NOTICE](../NOTICE). The tree does not use per-file
+`SPDX-License-Identifier` headers; AGPL-3.0 does not require them. New Go
+dependencies must be permissive or GPL-family (see
 [.cursor/rules/agent-rules.mdc](../.cursor/rules/agent-rules.mdc)).
 
 ### Main module (`go.mod`)
@@ -113,6 +114,7 @@ the tree are AGPL-3.0-compatible.
 | Asset | Version | Repository | License |
 |---|---|---|---|
 | `internal/web/view/static/htmx.min.js` | 2.0.4 | <https://github.com/bigskysoftware/htmx> | 0BSD |
+| `internal/web/view/static/ibm-plex-*.woff2` | latin subset | <https://github.com/IBM/plex> | SIL OFL 1.1 (`OFL.txt` beside the files) |
 
 ### E2e module (`test/e2e/go.mod`)
 
@@ -128,8 +130,10 @@ the image.
 Postfix, OpenDKIM, `supervisord`, `sasl2-bin`, `logrotate`, and others come
 from Debian bookworm repositories; licenses are in each package's `copyright`
 file on <https://packages.debian.org/bookworm/>.
-The image also ships [LICENSE](../LICENSE) and [NOTICE](../NOTICE) under
-`/usr/share/doc/selfpost/`. The panel serves the AGPL text at `/license`.
+The image also ships [LICENSE](../LICENSE), [NOTICE](../NOTICE), and the IBM
+Plex [OFL.txt](../internal/web/view/static/OFL.txt) under
+`/usr/share/doc/selfpost/`. The panel serves the AGPL text at `/license` and
+the OFL text at `/static/OFL.txt`.
 
 ---
 
@@ -141,7 +145,7 @@ Requires Go 1.26+ and `CGO_ENABLED=0`.
 
 ```sh
 make build        # bin/panel, bin/selfpost-backup (VERSION=dev by default)
-make build VERSION=1.1.0
+make build VERSION=1.2.3
 ```
 
 Or directly:
@@ -162,8 +166,10 @@ docker build -f build/Dockerfile -t selfpost:dev --build-arg VERSION=dev .
 ```
 
 The Dockerfile has a build stage (`go vet`, `go build` with `VERSION`) and a
-runtime stage (Debian + mail stack). See [architecture.md](architecture.md) §
-Image and processes.
+runtime stage (Debian + mail stack). Runtime config and scripts use `COPY
+--chmod` so file modes in the image do not depend on how the build context was
+synced (e.g. a Windows checkout widening permissions on `logrotate-mail.conf`).
+See [architecture.md](architecture.md) § Image and processes.
 
 ---
 
@@ -185,9 +191,12 @@ tag / push only on explicit request (see `release.yml`).
 
 ### Release image
 
-The release image is published **only on tag** `vX.Y.Z` (not on every push to
-`main`). The tag is the single source of version: it drives the image tag and
-`-ldflags` in the binaries so they cannot drift apart.
+The release image is published **only** for a SemVer version `X.Y.Z`: a
+**published** GitHub Release whose tag is `vX.Y.Z`, or a `workflow_dispatch`
+that supplies that version. Pushing a git tag alone does not publish. Ordinary
+commits, and a dispatch from `main` without a version input, do not publish.
+The version is the single source that drives the image tag and `-ldflags` in
+the binaries so they cannot drift apart.
 
 **Steps (on explicit request):**
 
@@ -195,8 +204,42 @@ The release image is published **only on tag** `vX.Y.Z` (not on every push to
    tag in [deploy/docker-compose.yml](../deploy/docker-compose.yml) (and any
    local-trial image references) in the **same** release commit.
 2. Create and push git tag `vX.Y.Z` on that commit.
-3. Workflow [release.yml](../.github/workflows/release.yml) builds, e2e-gates,
-   and publishes `ghcr.io/mixeme/selfpost:X.Y.Z`.
+3. Publish the GitHub Release for `vX.Y.Z` (not a draft).
+4. Workflow [release.yml](../.github/workflows/release.yml) builds, e2e-gates,
+   and publishes `ghcr.io/mixeme/selfpost:X.Y.Z` (checks out tag `vX.Y.Z`).
+
+**GitHub Release vs GHCR.** The public [Releases](https://github.com/mixeme/selfpost/releases)
+page lists only **published** releases. A draft is visible to maintainers only —
+it looks like “no releases” to everyone else. CI does not create or publish the
+GitHub Release; you do that in the UI. Deleting a release’s git tag on GitHub
+(or re-pushing tags while cleaning the registry) converts a published release
+back into a **draft** — that matches “I published three times and it keeps
+disappearing”. After publish, leave the tag on GitHub; clean up only unwanted
+GHCR package versions, not the git tag.
+
+Push workflow and source changes to **github.com/mixeme/selfpost** before
+publishing — Actions reads that repo, not Gitea.
+
+**Gitea → GitHub tag mirror.** If every tag push from Gitea is mirrored to
+GitHub, two things follow:
+
+1. **GitHub Release tags must not be deleted on GitHub.** Many mirror setups
+   prune remote tags that are absent on Gitea (or re-push with `--force` /
+   `--prune`). Deleting `v1.0.0` / `v1.3.0` on GitHub converts a published
+   Release back to draft. Mirror **branches and new tags forward**; do not
+   delete release tags on the GitHub side. GHCR cleanup is package versions in
+   the UI — not `git push github --delete` and not tag prune on the mirror.
+
+2. **Tag push runs the workflow file at that tag's commit**, not `main`. `v1.0.0`
+   still points at a commit whose `release.yml` has `on: push: tags` and no
+   per-arch GHCR cleanup — every mirror (re)push of that tag can republish
+   `1.0.0-amd64` / `1.0.0-arm64`. Tags from `v1.3.0` onward only run
+   `release.yml` on **Publish release** (`release: published`), so mirroring
+   those tags alone does not start the image build.
+
+   Safe mirror: push tags to GitHub without deleting existing ones; keep release
+   tags on Gitea; publish the GitHub Release on github.com after the mirror has
+   the tag.
 
 Ordinary commits **do not** publish an image. The compose pin and the git tag
 must match (`1.0.0` / `v1.0.0` for the first published release). Intermediate
@@ -263,7 +306,11 @@ operator would actually use.
 **Coverage (summary):** bootstrap → SMTP AUTH → delivery → DKIM verify →
 send-log `queued → sent`; negatives (no AUTH, relay, sender/login mismatch,
 L1/L2 limits, milter fail-open, bad `SELFPOST_HOSTNAME`, session survives
-`docker restart`). Polling with timeouts only — no fixed `sleep`.
+`docker restart`); startup checks that supervisord actually brought up
+OpenDKIM, the panel, and Postfix (`checkSupervisorProcesses`), plus logrotate
+config-mode and forced-rotation checks (`checkLogrotateConfigMode`,
+`checkLogrotateRotation` — [test/e2e/logrotate_check.go](../test/e2e/logrotate_check.go)).
+Polling with timeouts only — no fixed `sleep`.
 
 Requires **Docker + Compose v2** on the machine running the suite.
 
@@ -278,21 +325,33 @@ Workflows in [.github/workflows/](../.github/workflows/). What each job runs —
 
 `gofmt -l` → `go vet ./...` → `go test ./...` (main module, no e2e).
 
-### `release.yml` — push of tag `vX.Y.Z` or `workflow_dispatch`
+### `release.yml` — published GitHub Release, or `workflow_dispatch` with SemVer
+
+Publishing a GitHub Release runs `release.yml` directly (`release: published`,
+same pattern as gosentry / imap-scrub). You can also run it manually via
+`workflow_dispatch` with an explicit `X.Y.Z` input. A bare git tag push does not
+run the workflow. The build always checks out `vX.Y.Z`, not `main` HEAD.
+
+`prepare` takes the version from `github.event.release.tag_name` on a release
+event, or from the `workflow_dispatch` `version` input. A dispatch whose input
+is missing or not `X.Y.Z` fails in `prepare`.
 
 ```
-prepare (version from tag)
+release: published
+prepare (version from release tag or workflow_dispatch input; checkout vX.Y.Z)
   → build [matrix: ubuntu-latest / ubuntu-24.04-arm]
-      → docker build --load (VERSION from tag)
+      → docker build --load (VERSION from prepare)
       → e2e (test/e2e)
       → push ghcr.io/...:X.Y.Z-amd64 | X.Y.Z-arm64
   → merge
       → docker buildx imagetools create → unified manifest X.Y.Z
+      → GitHub Packages API → drop X.Y.Z-amd64 and X.Y.Z-arm64 from GHCR
 ```
 
 Native per-arch matrix (no QEMU): running the full Postfix/OpenDKIM stack under
 emulation for e2e is impractical. E2e first, then push — the registry receives
-the bytes that passed the gate.
+the bytes that passed the gate. Only `ghcr.io/mixeme/selfpost:X.Y.Z` remains
+tagged in GHCR; per-arch names exist briefly during the merge job.
 
 A failed e2e **blocks** image publication.
 

docs/guide.md

@@ -3,55 +3,53 @@
 Detailed install, configuration, and day-to-day operations. For a short
 overview and quick start, see [README.md](../README.md).
 
+This guide has three parts: **[Installation](#installation)** (getting a
+container running with a working reverse proxy and TLS), **[Instance
+administration](#instance-administration)** (running and maintaining the
+SelfPost server itself — status, backups, users, upgrades), and **[Domain
+administration](#domain-administration)** (day-to-day work on the sending
+domains hosted on that instance — DNS, deliveries, rate limits, applications).
+
 ## Table of contents
 
-- [Reverse proxy (mandatory)](#reverse-proxy-mandatory)
-- [Local trial](#local-trial)
-- [Environment variables](#environment-variables)
-- [DNS setup](#dns-setup)
-- [IP warmup](#ip-warmup)
-- [Operations](#operations)
-- [Rate limiting](#rate-limiting)
-- [Backup, restore, and moving a single domain](#backup-restore-and-moving-a-single-domain)
-  - [Encrypting a backup or export](#encrypting-a-backup-or-export)
-- [Published ports](#published-ports)
-- [Fixed image tag](#fixed-image-tag)
+- [Installation](#installation)
+  - [Ports](#ports)
+  - [Local trial](#local-trial)
+  - [Initial setup](#initial-setup)
+  - [Full deployment](#full-deployment)
+    - [Fixed image tag](#fixed-image-tag)
+  - [Environment variables](#environment-variables)
+  - [Reverse proxy (mandatory)](#reverse-proxy-mandatory)
+- [Instance administration](#instance-administration)
+  - [Status](#status)
+  - [Mail queue and System log](#mail-queue-and-system-log)
+  - [Settings](#settings)
+  - [Users](#users)
+  - [Sessions](#sessions)
+  - [Upgrading](#upgrading)
+  - [Container health](#container-health)
+  - [Server-level DNS (PTR/rDNS)](#server-level-dns-ptrrdns)
+  - [Rate limiting — level 1 (IP backstop)](#rate-limiting--level-1-ip-backstop)
+  - [Full backup and restore](#full-backup-and-restore)
+    - [Encrypting a backup or export](#encrypting-a-backup-or-export)
+- [Domain administration](#domain-administration)
+  - [Domains page](#domains-page)
+  - [Domain-level DNS (SPF, DKIM, DMARC)](#domain-level-dns-spf-dkim-dmarc)
+  - [IP warmup](#ip-warmup)
+  - [Rate limiting — level 2 (domain and application)](#rate-limiting--level-2-domain-and-application)
+  - [Deliveries](#deliveries)
+  - [Exporting and importing a single domain](#exporting-and-importing-a-single-domain)
 
-## Reverse proxy (mandatory)
+## Installation
 
-SelfPost's panel speaks plain HTTP and never terminates TLS itself — a reverse
-proxy in front of it is not optional. The proxy is also the project's only
-source of TLS certificates: whatever it obtains via ACME/Let's Encrypt gets
-bind-mounted **read-only** into the SelfPost container, and Postfix uses those
-same PEM files for TLS on 465 (and 587, if enabled). If the panel and the mail
-service share one hostname — the common case — it's genuinely one certificate
-serving both.
+### Ports
 
-SelfPost isn't tied to a specific proxy; pick whichever fits your host:
+`deploy/docker-compose.yml` maps **465** and **587** to the host. Port 465
+(smtps) is always active. Port **587** is published even when
+`SUBMISSION_ENABLE=false`; nothing listens until you set it to `true` — harmless,
+but it can look like an open port in external scans.
 
-| Proxy | Where certs live | Fragment |
-|---|---|---|
-| **Apache** (default/recommended) | Host disk, via the certbot Apache plugin — PEM files ready to bind-mount, no extraction step. | [deploy/apache/selfpost-vhost.conf](../deploy/apache/selfpost-vhost.conf) |
-| nginx | Host disk, via a certbot sidecar container — same PEM-ready shape as Apache. | [deploy/nginx/](../deploy/nginx/) |
-| Caddy | Automatic ACME, zero extra containers — simplest, but its on-disk cert path is versioned internal layout, not a stable API; verify it for the Caddy version you run. | [deploy/caddy/](../deploy/caddy/) |
-| Traefik | Bundled inside `acme.json` — needs a small extraction script to produce standalone PEM files. | [deploy/traefik/](../deploy/traefik/) |
-
-Apache is the recommended default because the certbot Apache plugin already
-writes plain `fullchain.pem`/`privkey.pem` files to a predictable path with no
-extra moving parts between "certificate issued" and "Postfix can read it."
-
-**The proxy needs no security configuration of its own.** The panel emits its
-own `Content-Security-Policy`, `Strict-Transport-Security`, `X-Frame-Options`,
-`X-Content-Type-Options` and `Referrer-Policy` — deliberately, so the part
-that's easy to get wrong lives in the service rather than in a config file
-somebody edits under pressure. There is exactly one thing the proxy must do:
-**pass the original `Host` header through**. All four fragments above already
-do (Apache `ProxyPreserveHost On`, nginx `proxy_set_header Host $host`, Caddy
-and Traefik by default). A proxy that rewrites `Host` instead makes the panel
-reject every form submission as cross-origin — the log says so explicitly,
-printing the `Origin` and `Host` it compared.
-
-## Local trial
+### Local trial
 
 The [README quick start](../README.md#quick-start) runs a single container
 with `PANEL_COOKIE_SECURE=false` and port 8080 published on localhost. No
@@ -85,7 +83,99 @@ Add `-v /tmp/selfpost-certs:/etc/postfix/tls:ro` to the `docker run` command
 (and keep `SELFPOST_HOSTNAME=mail.local.test` so it matches the certificate CN).
 Clients must skip TLS verification — the cert is not from a public CA.
 
-## Environment variables
+### Initial setup
+
+On first start the one-time setup URL is printed in the container log
+(`docker compose logs -f`) and written to `/data/setup-token` inside the
+container — `./data/setup-token` on the host, mode `0600` — then deleted when
+setup completes. The link is `https://<SELFPOST_HOSTNAME>/setup/<token>` (path
+token, not a query string), valid for ten minutes. Open it to choose the
+administrator username and password — until then the panel has no login. If
+this host ships container logs to a central aggregator, prefer reading the
+file:
+
+```sh
+docker compose exec selfpost cat /data/setup-token
+```
+
+### Full deployment
+
+Production layout: one `docker-compose.yml`, a `.env`, persistent `./data`, and
+TLS PEM files at `./certs` (read by Postfix on 465/587). The panel is reached
+only through a [reverse proxy](#reverse-proxy-mandatory) on 443 — port 8080 is
+bound to localhost in the default compose file.
+
+| Artefact | Path |
+|---|---|
+| Compose file (fixed image tag) | [deploy/docker-compose.yml](../deploy/docker-compose.yml) |
+| Environment template | [deploy/.env.example](../deploy/.env.example) |
+| Apache vhost (recommended) | [deploy/apache/selfpost-vhost.conf](../deploy/apache/selfpost-vhost.conf) |
+| nginx | [deploy/nginx/](../deploy/nginx/) |
+| Caddy | [deploy/caddy/](../deploy/caddy/) |
+| Traefik | [deploy/traefik/](../deploy/traefik/) |
+
+**1. Fetch the base files.**
+
+```sh
+mkdir -p selfpost/data selfpost/certs && cd selfpost
+curl -O https://raw.githubusercontent.com/mixeme/selfpost/main/deploy/docker-compose.yml
+curl -O https://raw.githubusercontent.com/mixeme/selfpost/main/deploy/.env.example
+cp .env.example .env
+```
+
+Edit `.env` — at minimum set `SELFPOST_HOSTNAME` to your mail hostname (bare
+FQDN, e.g. `mail.example.com`). It must match the PTR record you request from
+your provider and the certificate your proxy will obtain. See [Environment
+variables](#environment-variables) for the full list.
+
+**2. Reverse proxy and TLS.** Pick and set up one proxy — see [Reverse proxy
+(mandatory)](#reverse-proxy-mandatory) for the per-proxy commands. The same
+certificate must end up under `./certs` as `fullchain.pem` and `privkey.pem`
+so Postfix can serve it on 465 (and 587 if enabled).
+
+**3. Start SelfPost.** If you used Apache on the host (the recommended
+option), start only the base compose file from your `selfpost/` directory:
+
+```sh
+docker compose up -d
+```
+
+The nginx/Caddy/Traefik fragments already include `docker compose up -d` —
+skip this if you ran one of those.
+
+**Get the setup URL** — open it in a browser to create the admin account (see
+[Initial setup](#initial-setup)):
+
+```sh
+docker compose logs selfpost 2>&1 | grep -m1 'http'
+```
+
+```sh
+cat ./data/setup-token
+```
+
+**4. DNS and sending.** Before sending real mail:
+
+1. Confirm PTR/rDNS for the server IP points at `SELFPOST_HOSTNAME` (Status
+   page → *Re-check*) — see [Server-level DNS](#server-level-dns-ptrrdns).
+2. For each domain you add in the panel, publish SPF, DKIM, and DMARC at the
+   same time ([Domain-level DNS](#domain-level-dns-spf-dkim-dmarc)).
+3. Warm up a new IP gradually ([IP warmup](#ip-warmup)).
+
+#### Fixed image tag
+
+`deploy/docker-compose.yml` pins an explicit version (`ghcr.io/mixeme/selfpost:X.Y.Z`),
+deliberately never `:latest`. The current pin is `1.3.0`. Intermediate
+CHANGELOG sections (`0.2.0`…`0.6.0`) record development cuts from before that
+image was published. Pinning matters because of the backup version check (see
+[Full backup and restore](#full-backup-and-restore)): the panel binary's
+embedded version and the image tag that produced it are the same value by
+construction (the release CI stamps both from one git tag — see
+`.github/workflows/release.yml`), so the pin is what makes "restore into the
+same version" a checkable fact rather than a guess. Upgrade by bumping the tag
+deliberately, not by riding a moving target — see [Upgrading](#upgrading).
+
+### Environment variables
 
 Copy [deploy/.env.example](../deploy/.env.example) to `.env` next to your
 `docker-compose.yml`. The table below lists every variable an operator is
@@ -95,7 +185,7 @@ expected to set; defaults match the code exactly.
 |---|---|---|---|
 | `SELFPOST_HOSTNAME` | Mail-server identity: Postfix HELO/EHLO, SASL realm, certificate CN/SAN, and the hostname the PTR check expects. Bare FQDN only — no scheme or port. | *(required)* | `.env` |
 | `SUBMISSION_ENABLE` | When `true`, also listen on port 587 with STARTTLS (RFC 6409 submission) alongside the primary 465/smtps listener. | `false` | `.env` |
-| `RATE_LIMIT_MESSAGES_PER_IP` | Level-1 backstop: maximum messages one client IP may submit per window (Postfix `smtpd_client_message_rate_limit`). See [Rate limiting](#rate-limiting). | `100` | `.env` |
+| `RATE_LIMIT_MESSAGES_PER_IP` | Level-1 backstop: maximum messages one client IP may submit per window (Postfix `smtpd_client_message_rate_limit`). See [Rate limiting — level 1](#rate-limiting--level-1-ip-backstop). | `100` | `.env` |
 | `RATE_LIMIT_WINDOW_SECONDS` | Level-1 window length in seconds (Postfix `anvil_rate_time_unit`). | `3600` | `.env` |
 | `SEND_LOG_RETENTION_DAYS` | Days of send-log history kept before the background sweep deletes rows — the main driver of `/data` growth over time. | `90` | `.env` |
 | `PANEL_SESSION_IDLE_DAYS` | Sliding idle timeout for the panel login session, in days. There is no absolute cap: an admin who keeps coming back stays signed in indefinitely. | `7` | `.env` |
@@ -106,118 +196,128 @@ TLS certificate paths (`TLS_CERT_FILE`, `TLS_KEY_FILE`) are fixed in
 [deploy/docker-compose.yml](../deploy/docker-compose.yml) to match the `./certs`
 bind mount — configure the mount, not these variables.
 
-**Internal variables (not part of the operator interface).** The following are
-read by the panel or startup scripts but are not meant to be changed in a
-normal deployment; documenting them here avoids treating accidental overrides as
-supported configuration:
+The image also reads a number of internal, non-operator env vars (paths,
+timeouts, tuning) — not part of this interface; see
+[architecture.md § Configuration](architecture.md#configuration) if you need
+them.
 
-- **Panel paths and tuning:** `SELFPOST_DATA_DIR` (`/data`), `SELFPOST_DB_PATH`
-  (`/data/selfpost.db`), `SELFPOST_SETUP_TOKEN_FILE`
-  (`/data/setup-token`), `PANEL_HTTP_ADDR` (`:8080`),
-  `JOURNAL_MILTER_SOCKET` (`/run/selfpost/journal.sock`), `MAIL_LOG`
-  (`/data/log/mail.log` — read by the panel and written by Postfix, so a change
-  here has to be matched in `build/postfix-config.sh`),
-  `PANEL_COOKIE_SECURE` (`true`), `OPENDKIM_SOCKET`
-  (`/run/opendkim/opendkim.sock`), `OPENDKIM_DIR` (`/data/opendkim`),
-  `DKIM_SELECTOR_DEFAULT` (`selfpost`), `SASL_DB_PATH`
-  (`/data/sasl/sasldb2`), `SASL_REALM` (defaults to `SELFPOST_HOSTNAME`),
-  `POSTFIX_DIR` (`/data/postfix`), `POSTFIX_SENDER_LOGIN_MAPS`
-  (`/data/postfix/sender_login_maps` — read by Postfix config only; the panel
-  always writes `<POSTFIX_DIR>/sender_login_maps`, so overriding this env alone
-  desyncs the map Postfix reads from the file the panel maintains).
-- **Milter and Postfix startup:** `MILTER_CONNECT_TIMEOUT` (`15s`),
-  `MILTER_COMMAND_TIMEOUT` (`15s`), `MILTER_CONTENT_TIMEOUT` (`30s`),
-  `MILTER_WAIT_TIMEOUT` (`30` seconds).
-- **Background maintenance:** `TLS_RELOAD_INTERVAL_SECONDS` (`86400` — daily
-  `postfix reload` to pick up renewed certificates),
-  `LOGROTATE_INTERVAL_SECONDS` (`21600` — check `mail.log` rotation every six
-  hours; logrotate keeps 14 rotated files on a daily schedule, and each
-  rotation triggers `postfix reload`).
+### Reverse proxy (mandatory)
 
-## DNS setup
+SelfPost's panel speaks plain HTTP and never terminates TLS itself — a reverse
+proxy in front of it is not optional. The proxy is also the project's only
+source of TLS certificates: whatever it obtains via ACME/Let's Encrypt gets
+bind-mounted **read-only** into the SelfPost container, and Postfix uses those
+same PEM files for TLS on 465 (and 587, if enabled). If the panel and the mail
+service share one hostname — the common case — it's genuinely one certificate
+serving both.
 
-Two different scopes — don't confuse them:
+SelfPost isn't tied to a specific proxy; pick whichever fits your host:
 
-**Server level (once, for the machine itself):**
-- **PTR/rDNS** for the server's IP, pointing at its mail hostname. Most
-  receiving mail servers weigh this heavily; get it from whoever assigns the IP
-  (hosting provider's panel/support), not from your own DNS zone.
+| Proxy | Where certs live | Fragment |
+|---|---|---|
+| **Apache** (default/recommended) | Host disk, via the certbot Apache plugin — PEM files ready to bind-mount, no extraction step. | [deploy/apache/selfpost-vhost.conf](../deploy/apache/selfpost-vhost.conf) |
+| nginx | Host disk, via a certbot sidecar container — same PEM-ready shape as Apache. | [deploy/nginx/](../deploy/nginx/) |
+| Caddy | Automatic ACME, zero extra containers — simplest, but its on-disk cert path is versioned internal layout, not a stable API; verify it for the Caddy version you run. | [deploy/caddy/](../deploy/caddy/) |
+| Traefik | Bundled inside `acme.json` — needs a small extraction script to produce standalone PEM files. | [deploy/traefik/](../deploy/traefik/) |
 
-**Domain level (for *every* sending domain you add in the panel):**
-- **SPF** — a TXT record on the domain authorizing this server to send on its
-  behalf (e.g. `v=spf1 a mx ip4:<server IP> -all`, adjusted to your setup).
-- **DKIM** — a TXT record with the exact value the panel shows on that
-  domain's page (`domain page → DKIM TXT record`), one selector per domain.
-- **DMARC** — a `_dmarc` TXT record. The panel suggests `p=none` (monitoring
-  only, safe to publish immediately). On a send-only relay the sending domain
-  often has no inbox, so `rua=` is optional — configure a default report address
-  in *Settings* or per domain when you have a mailbox that receives inbound mail
-  elsewhere. If `rua=` points at another domain, publish `_report._dmarc` on that
-  hub domain too; the panel checks it. Public mail hosts (Gmail, Outlook, …)
-  cannot be used as external report destinations.
+Apache is the recommended default because the certbot Apache plugin already
+writes plain `fullchain.pem`/`privkey.pem` files to a predictable path with no
+extra moving parts between "certificate issued" and "Postfix can read it."
 
-Skipping any of the three per-domain records is the single most common reason
-mail lands in spam even though SelfPost delivered it correctly — DKIM passing
-doesn't help if SPF/DMARC are absent. **Whenever you add a new domain in the
-panel, add its DNS records at the same time**, not later.
+**The proxy needs no security configuration of its own.** The panel emits its
+own `Content-Security-Policy`, `Strict-Transport-Security`, `X-Frame-Options`,
+`X-Content-Type-Options` and `Referrer-Policy` — deliberately, so the part
+that's easy to get wrong lives in the service rather than in a config file
+somebody edits under pressure. There is exactly one thing the proxy must do:
+**pass the original `Host` header through**. All four fragments above already
+do (Apache `ProxyPreserveHost On`, nginx `proxy_set_header Host $host`, Caddy
+and Traefik by default). A proxy that rewrites `Host` instead makes the panel
+reject every form submission as cross-origin — the log says so explicitly,
+printing the `Origin` and `Host` it compared.
 
-The panel checks both scopes for you and tells you what is actually published:
-the *Status* page verifies the server's hostname and its reverse record
-(forward-confirmed reverse DNS), and each domain's page shows a *DNS status*
-card comparing the published DKIM record against the key this server signs with,
-plus the domain's SPF, DMARC, and (when configured) DMARC report-authorisation
-records. Results are cached for a few minutes;
-use *Re-check* right after publishing a record. The SPF check is deliberately
-shallow — it looks for a mechanism that literally covers this server's address
-and does not follow `include:` or `redirect=`, so a record that authorizes the
-server through an include is reported as "cannot tell" rather than as a failure.
+In every case the proxy terminates HTTPS for the panel; the resulting
+certificate must end up under `./certs` as `fullchain.pem` and `privkey.pem`.
 
-## IP warmup
+**Apache (recommended, on the host).** Install Apache with `ssl`, `proxy`, and
+`proxy_http` enabled. Copy
+[deploy/apache/selfpost-vhost.conf](../deploy/apache/selfpost-vhost.conf) into your
+vhost directory, replace `mail.example.com` with your hostname, enable the site,
+then issue a certificate:
 
-A brand-new IP has no sending history, so receiving servers are cautious with
-it regardless of how correct your DKIM/SPF/DMARC are. Start with low volume to
-a domain, increase gradually over days/weeks rather than sending everything on
-day one, and check the IP against major blocklists (Spamhaus and similar)
-before and during warmup. This is inherent to how mail reputation works on the
-public internet, not something SelfPost's configuration can shortcut.
+```sh
+sudo certbot --apache -d mail.example.com
+```
 
-## Operations
+Point `./certs` at the PEM files certbot wrote (symlink is fine):
+
+```sh
+ln -s /etc/letsencrypt/live/mail.example.com certs
+```
+
+**nginx (containerised).** From the `deploy/` directory, merge the nginx
+fragment and issue the first certificate before nginx can serve HTTPS:
+
+```sh
+docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml \
+  run --rm certbot certonly --webroot -w /var/www/certbot \
+  -d mail.example.com --email you@example.com --agree-tos --no-eff-email
+
+docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml up -d
+```
+
+Edit [deploy/nginx/nginx.conf.example](../deploy/nginx/nginx.conf.example) and
+replace `mail.example.com` first. The fragment bind-mounts certbot's output into
+both nginx and SelfPost.
+
+**Caddy (containerised, automatic ACME).** Edit
+[deploy/caddy/Caddyfile](../deploy/caddy/Caddyfile) and the `<hostname>` placeholders
+in [deploy/caddy/docker-compose.caddy.yml](../deploy/caddy/docker-compose.caddy.yml),
+then:
+
+```sh
+docker compose -f docker-compose.yml -f caddy/docker-compose.caddy.yml up -d
+```
+
+Verify Caddy's on-disk cert path for your version before relying on the
+default mount — see the comment at the top of the Caddy compose fragment.
+
+**Traefik (containerised).** Edit the `Host(...)` label and ACME email in
+[deploy/traefik/docker-compose.traefik.yml](../deploy/traefik/docker-compose.traefik.yml),
+start the stack, then extract PEM files for Postfix whenever Traefik issues or
+renews a certificate:
+
+```sh
+docker compose -f docker-compose.yml -f traefik/docker-compose.traefik.yml up -d
+./traefik/extract-cert.sh ./traefik/letsencrypt/acme.json mail.example.com ./traefik/extracted-certs
+```
+
+Schedule `extract-cert.sh` (cron or a timer) alongside Traefik's renewals.
+
+## Instance administration
 
 After sign-in the panel opens on **Status** — the place to answer "is the
 service healthy and will mail be accepted?"
 
-- **Status** (`/status`) — supervised processes (Postfix, OpenDKIM, panel),
-  TLS certificate validity and expiry, milter socket presence, and a short
-  Postfix queue summary. The **Machine** card adds the resource usage of the
-  host underneath — processor (with the load average), memory and swap, and
-  per-interface network throughput and totals — read from the kernel's
-  counters; CPU and throughput are measured between refreshes, so they appear
-  one refresh after the page opens. A fully busy processor or a machine out of
-  memory is a warning here, because both delay or kill the mail path;
-  throughput is only reported. The hostname block compares `SELFPOST_HOSTNAME`
-  against the PTR record the internet publishes for this server's IP
-  (forward-confirmed reverse DNS); use *Re-check* after changing DNS. The
-  **Reload configuration** button re-applies OpenDKIM tables and the Postfix
-  sender map from the database — use it if daemons drifted from what the panel
-  shows after manual edits under `/data`.
-- **Domains** (`/domains`) — add sending domains, inspect each domain's DKIM
-  TXT value, SPF/DMARC checks, and SASL applications. Per-domain rate limits
-  (level 2) are configured here. *Export domain* writes a single-domain archive;
-  *Import a domain* on the Backup page reads one back in.
-- **Deliveries** (`/deliveries`) — searchable send log with server-side filters
-  by domain and application. A row identifies its message and nothing more —
-  time, sender, recipient, subject and status `queued` (accepted, not yet
-  delivered), `sent` (handed off successfully), `deferred` (Postfix is retrying),
-  `bounced` (final failure), or `rejected` (refused — for example by a level-2
-  rate limit); *Details* opens that row's own page
-  (`/deliveries/{id}`). That page carries the sending domain, the application it
-  was submitted under, the Postfix queue id and the journal id, beside the
-  message's history — when it was accepted and what Postfix later reported for
-  the recipient — and, under both, the `mail.log` lines for its queue id: the
-  connection to the receiving server, the server's reply, and the status that
-  reply was filed as. Rows outlive `mail.log`, so an older message's lines may
-  have rotated away; the page says so. Retention is controlled by
-  `SEND_LOG_RETENTION_DAYS`.
+### Status
+
+`/status` shows supervised processes (Postfix, OpenDKIM, panel), TLS
+certificate validity and expiry, milter socket presence, and a short Postfix
+queue summary. The **Machine** card adds the resource usage of the host
+underneath — processor (core and thread counts), memory and swap, and
+per-interface network throughput and totals — read from the kernel's
+counters; CPU and throughput are measured between refreshes, so they appear
+one refresh after the page opens. A fully busy processor or a machine out of
+memory is a warning here, because both delay or kill the mail path;
+throughput is only reported. The hostname block compares `SELFPOST_HOSTNAME`
+against the PTR record the internet publishes for this server's IP
+(forward-confirmed reverse DNS) — see
+[Server-level DNS](#server-level-dns-ptrrdns); use *Re-check* after changing
+DNS. The **Reload configuration** button re-applies OpenDKIM tables and the
+Postfix sender map from the database — use it if daemons drifted from what
+the panel shows after manual edits under `/data`.
+
+### Mail queue and System log
+
 - **Mail queue** (`/mail-queue`) — live view of messages Postfix is still
   trying to deliver or deferring.
 - **System log** (`/system-log`) — tail of `/data/log/mail.log` (Postfix and
@@ -226,112 +326,215 @@ service healthy and will mail be accepted?"
   hours. It lives in the data volume, so it survives a container recreate along
   with the rest of the state — `./data/log/` on the host — but it is *not*
   included in backups: it is diagnostics, not state.
-- **Backup** (`/backup`) — download a full-server backup; the same page hosts
-  the domain-import form (`POST /domains/import`). See
-  [Backup, restore, and moving a single domain](#backup-restore-and-moving-a-single-domain).
-- **Settings** (`/account`) — change the administrator username and/or password.
-  Application SASL logins are separate and are not changed here.
 
-**Sessions.** A login survives a container restart: sessions live in SQLite, not
-in memory. Expiry is a sliding idle window (`PANEL_SESSION_IDLE_DAYS`, default
+### Settings
+
+`/settings` changes the signed-in user's username and/or password. **Global
+administrators** also set the panel-wide default DMARC report address (`rua=`)
+offered when a domain doesn't set its own — see
+[Domain-level DNS](#domain-level-dns-spf-dkim-dmarc). Application SASL logins
+are separate and are not changed here.
+
+### Users
+
+`/users` (global administrator only) creates, edits, and deletes panel users.
+There are two roles:
+
+- **Global administrator** — full access to every page and every domain,
+  including Users, Backup, Status, Mail queue, and System log.
+- **Domain-admin** — scoped to one or more domains assigned by a global
+  administrator. Sees only those domains' pages, applications, and
+  Deliveries rows; cannot add or delete domains. `/users`, `/backup`,
+  `/status`, `/mail-queue`, `/system-log`, and `POST /reload` are not
+  reachable (404). A domain-admin can *export* the
+  domains assigned to them — see
+  [Exporting and importing a single domain](#exporting-and-importing-a-single-domain).
+
+The panel refuses to remove or demote the **last** global administrator, so
+it can never end up with none.
+
+### Sessions
+
+A login survives a container restart: sessions live in SQLite, not in
+memory. Expiry is a sliding idle window (`PANEL_SESSION_IDLE_DAYS`, default
 seven days) with no absolute lifetime cap — an admin who keeps using the panel
 stays signed in indefinitely. HTMX polling on the monitoring screens
 (Deliveries, Mail queue, System log, and the Status health fragment) does
 **not** count as activity, so an auto-refreshing tab left open will not keep a
-session alive forever. Changing the password signs out every other session but
-leaves the current browser signed in.
+session alive forever. Changing **your own** password on `/settings` signs out
+every other session for that user but leaves the current browser signed in.
+Signing out (`POST /logout`) ends only the current session — other browsers or
+tabs for the same user keep working until their session rows expire.
 
-**Upgrading.** Bump the pinned image tag in `docker-compose.yml` to the target
-release, then `docker compose up -d`. The backup version check requires the
-running image to match the version that created a full backup — see [Fixed image
+### Upgrading
+
+Bump the pinned image tag in `docker-compose.yml` to the target release, then
+`docker compose up -d`. The backup version check requires the running image
+to match the version that created a full backup — see [Fixed image
 tag](#fixed-image-tag).
 
-**Container health.** The image declares a Docker `HEALTHCHECK` that probes
-`GET /healthz` on port 8080 (unauthenticated). It returns `200 ok` when
-OpenDKIM, the panel, and Postfix are all `RUNNING` under supervisord;
-otherwise `503 unhealthy`. This catches a dead mail path that would still leave
-the HTTP server up, but it does **not** verify TLS certificates, DNS records,
-or end-to-end delivery — use the authenticated **Status** page for that. External
-monitoring can use the same endpoint through the reverse proxy if you expose it,
-or poll `docker inspect` health state on the host.
+### Container health
 
-**First-time setup link.** On first start the one-time setup URL is printed in
-the container log (`docker compose logs -f`) and written to `/data/setup-token`
-inside the container — `./data/setup-token` on the host, mode `0600` — then
-deleted when setup completes. The link is
-`https://<SELFPOST_HOSTNAME>/setup/<token>` (path token, not a query string),
-valid for ten minutes. If this host ships container logs to a central
-aggregator, prefer reading the file:
+The image declares a Docker `HEALTHCHECK` that probes `GET /healthz` on port
+8080 (unauthenticated). It returns `200 ok` when OpenDKIM, the panel, and
+Postfix are all `RUNNING` under supervisord; otherwise `503 unhealthy`. This
+catches a dead mail path that would still leave the HTTP server up, but it
+does **not** verify TLS certificates, DNS records, or end-to-end delivery —
+use the authenticated [Status](#status) page for that. External monitoring
+can use the same endpoint through the reverse proxy if you expose it, or poll
+`docker inspect` health state on the host.
 
-```sh
-docker compose exec selfpost cat /data/setup-token
-```
+### Server-level DNS (PTR/rDNS)
 
-## Rate limiting
+Once, for the machine itself: **PTR/rDNS** for the server's IP, pointing at
+its mail hostname. Most receiving mail servers weigh this heavily; get it
+from whoever assigns the IP (hosting provider's panel/support), not from
+your own DNS zone.
 
-SelfPost applies two independent limits; both can refuse a submission, but only
-level 2 writes a `rejected` row in the send log.
+The [Status](#status) page verifies the server's hostname against this
+record (forward-confirmed reverse DNS). Results are cached for about one
+minute; use *Re-check* right after publishing a record.
 
-**Level 1 (IP backstop)** — always on, configured via `.env`:
+Per-domain DNS (SPF, DKIM, DMARC) is a separate scope — see
+[Domain-level DNS](#domain-level-dns-spf-dkim-dmarc).
+
+### Rate limiting — level 1 (IP backstop)
+
+SelfPost applies two independent layers of rate limiting; both can refuse a
+submission, but only level 2 (domain/application, see
+[Domain administration](#rate-limiting--level-2-domain-and-application))
+writes a `rejected` row in the send log. Level-2 ceilings set in the panel
+cannot exceed level 1 (the panel shows the level-1 values and rejects higher
+numbers).
+
+Level 1 is always on, configured via `.env`:
 
 - `RATE_LIMIT_MESSAGES_PER_IP` → Postfix `smtpd_client_message_rate_limit`
 - `RATE_LIMIT_WINDOW_SECONDS` → Postfix `anvil_rate_time_unit`
 
 This is an anvil limit per connecting client IP. It keeps working even if the
-journal-milter (level 2) is down.
+journal-milter (level 2) is down. There is no per-IP bypass.
 
-**Level 2 (per domain / per application)** — optional, configured in the panel
-on each domain's page or on an individual application. You set a message
-ceiling, a time window, and optionally restrict the limit to specific client
-IPs; an empty IP list means the differentiated limit does not apply. When
-exceeded, Postfix returns a 4xx and the refusal is recorded in Deliveries as
-`rejected`.
+### Full backup and restore
 
-## Backup, restore, and moving a single domain
+**Full backup** is a self-contained project archive: `data/` (SQLite, all
+domains' DKIM keys, all applications' SASL credentials, the Postfix queue,
+`manifest.json` with the version that created it), plus `docker-compose.yml`,
+`.env`, and `certs/` from the operator directory next to `./data`. Delivery
+logs under `data/log/` are excluded. The base compose file mounts the project
+directory read-only at `/selfpost-deploy` so the panel and CLI can read those
+deploy files — without that mount, *Full backup* refuses with an error.
 
-Two related but distinct operations
-([architecture.md](architecture.md) § Persistence):
+Take a backup from the panel (*Backup* → *Full backup*) or from the host:
 
-- **Full backup** (whole `/data` except `log/`: SQLite, all domains' DKIM keys,
-  all applications' SASL credentials, `manifest.json` with the version that
-  created it): panel button (*Backup* → *Full backup*), or from the
-  host:
-  ```sh
-  docker exec <container> selfpost-backup > selfpost-backup.tar.gz
-  ```
-  **Restore** means unpacking that archive into a fresh `/data` bind mount and
-  starting a container of the **exact same image version** that created it —
-  SelfPost refuses to start otherwise and tells you which tag to use. On the
-  first successful start after restore, `manifest.json` from the archive is
-  **deleted** — it guards only that one boot, so a later in-place upgrade is
-  not blocked. This is why the compose file pins a fixed tag rather than
-  `:latest`: without a known version, there'd be no way to tell which image
-  restoring a given backup actually requires.
+```sh
+docker exec <container> selfpost-backup > selfpost-backup.tar.gz
+```
 
-  **Alternative: archive `./data` while stopped.** If the service can be taken
-  offline, `docker compose down` then `tar czf selfpost-data.tar.gz ./data` on
-  the host is safe — nothing is writing to SQLite. Unlike the panel/CLI backup
-  this sweeps in `./data/log/` too, which is Postfix's raw log and usually the
-  bulk of the archive; add `--exclude=./data/log` if you only want the state.
-  Do **not** tar `./data` while
-  the container is running: the database uses WAL mode and a naive copy can
-  capture an inconsistent snapshot. The panel/CLI backup remains preferable when
-  you cannot afford downtime because it takes a consistent SQLite snapshot via
-  the Backup API on a live container.
+**Restore** means unpacking that archive into an **empty project directory**
+(not into `./data` alone) and starting a container of the **exact same image
+version** that created it — SelfPost refuses to start otherwise and tells you
+which tag to use. On the first successful start after restore, `data/manifest.json`
+from the archive is **deleted** — it guards only that one boot, so a later
+in-place upgrade is not blocked. On that same first boot the panel also runs
+one **Resync** — OpenDKIM's tables and Postfix's sender map are re-derived from
+SQLite and both daemons are reloaded, healing any drift between the extracted
+files and the database (the Status page's *Reload configuration* button runs
+the same step on demand). This is why the compose file pins a fixed tag rather
+than `:latest`: without a known version, there'd be no way to tell which image
+restoring a given backup actually requires (see [Fixed image
+tag](#fixed-image-tag)).
 
-- **Export/import a single domain** (domain page → *Export domain* to write the
-  file, *Backup* → *Import a domain* to read it back in): moves one domain — its DKIM key and its applications' **working**
-  SASL passwords — to a different SelfPost instance without regenerating
-  anything, so DNS (the DKIM TXT record) doesn't need to change. Unlike a full
-  restore, this works across different hostnames/instances.
+**Restoring in place** (same host — recovering from data loss, or rolling
+back after a bad change):
 
-Both files are **secrets** — they contain the admin password hash (full
-backup) or working application credentials (domain export) in the clear or in
-directly reversible form. Treat them like any other credential material:
-restrict who can read them, don't email them around — and encrypt them, which
-SelfPost can do for you.
+```sh
+# 1. Stop the instance being replaced
+docker compose down
 
-### Encrypting a backup or export
+# 2. Move the current project aside rather than deleting it
+mv . ../selfpost.before-restore
+mkdir selfpost && cd selfpost
+
+# 3. Unpack the backup into the fresh directory
+tar xzf ../selfpost-backup.tar.gz
+
+# 4. docker-compose.yml in the archive must pin the exact tag the backup was
+#    made with — check if unsure:
+tar xzf ../selfpost-backup.tar.gz -O data/manifest.json
+
+# 5. Start it and watch the boot
+docker compose up -d
+docker compose logs -f selfpost
+```
+
+A version mismatch at step 5 refuses to start and leaves `/data` untouched —
+the panel exits with a message naming the tag to use, e.g.:
+
+```
+backup: this backup was created by SelfPost 1.2.3 but this image is 1.3.0 — restore into the matching image (selfpost:1.2.3)
+```
+
+Fix the tag in `docker-compose.yml`, `docker compose pull && docker compose up
+-d` again — the manifest is still there because the failed boot never got to
+delete it.
+
+**Moving to a different host** is the same flow: create an empty project
+directory, unpack the backup there, edit `.env` (and `docker-compose.yml` if
+needed) for the new hostname or proxy, then `docker compose up -d`. The archive
+carries `certs/` from the old host — re-issue certificates when the hostname or
+IP changes. Set up the reverse-proxy vhost separately (not in the backup).
+
+**Restoring an encrypted (`.spbk`) backup** needs a running container to
+decrypt it first — any container with the `selfpost-backup` CLI works; decryption
+does not read `/data` and performs no version check. Start one normally
+(step 5, but on an empty project you have not unpacked yet), then:
+
+```sh
+docker exec -i <container> selfpost-backup -decrypt < backup.spbk > selfpost-backup.tar.gz
+```
+
+Stop it, wipe the project directory again, and continue from step 2 above with
+the resulting `.tar.gz` — see [Encrypting a backup or
+export](#encrypting-a-backup-or-export) for the decrypt command's password
+options.
+
+**Archives from older SelfPost versions** (flat layout: `manifest.json` and
+`selfpost.db` at the archive root, no `data/` prefix, no deploy files) restore
+with the previous procedure: `tar xzf backup.tar.gz -C ./data` into a project
+that already has `docker-compose.yml` and `.env`.
+
+Restoring an archive taken **before** a session row was removed can bring
+that session back: session rows travel with the backup, and a browser that
+still holds the matching cookie is signed in again on the next request if the
+restored row's idle expiry has not passed. `POST /logout` removes only the
+current session; there is no "logout everywhere". Changing your own password
+on `/settings` deletes your other sessions, but a global administrator
+resetting another user's password on `/users` does not invalidate that user's
+existing sessions.
+
+**Alternative: archive `./data` while stopped.** If the service can be taken
+offline, `docker compose down` then `tar czf selfpost-data.tar.gz ./data` on
+the host is safe — nothing is writing to SQLite. Unlike the panel/CLI backup
+this sweeps in `./data/log/` too, which is Postfix's raw log and usually the
+bulk of the archive; add `--exclude=./data/log` if you only want the state.
+Do **not** tar `./data` while the container is running: the database uses
+WAL mode and a naive copy can capture an inconsistent snapshot. The
+panel/CLI backup remains preferable when you cannot afford downtime because
+it takes a consistent SQLite snapshot via the Backup API on a live
+container.
+
+See also [Exporting and importing a single
+domain](#exporting-and-importing-a-single-domain) — a different, domain-scoped
+operation that also lives on the *Backup* page (`/backup`).
+
+Both a full backup and a domain export are **secrets** — they contain the
+admin password hash (full backup), TLS private keys and `.env` (full backup),
+or working application credentials (domain export) in the clear or in
+directly reversible form. Treat them like any other credential material: restrict who can read them, don't email them
+around — and encrypt them, which SelfPost can do for you.
+
+#### Encrypting a backup or export
 
 Both download forms carry an **Encrypt with a password** checkbox. Ticked, the
 file that comes down is an encrypted envelope instead of the plain archive:
@@ -371,21 +574,121 @@ docker exec -e SELFPOST_BACKUP_PASSWORD="$PW" <container> selfpost-backup > back
 
 With no password set, the CLI keeps writing the plain `.tar.gz` it always has.
 
-## Published ports
+## Domain administration
 
-`deploy/docker-compose.yml` maps **465** and **587** to the host. Port 465
-(smtps) is always active. Port **587** is published even when
-`SUBMISSION_ENABLE=false`; nothing listens until you set it to `true` — harmless,
-but it can look like an open port in external scans.
+### Domains page
 
-## Fixed image tag
+`/domains` lists sending domains and hosts the add-domain form (**global
+administrator only**). Domain administrators see only domains assigned to
+them. Each row shows its DKIM TXT value, SPF/DMARC checks, and SASL
+applications. Per-domain rate limits (level 2) and trusted-IP application
+overrides are configured here — see [Rate limiting —
+level 2](#rate-limiting--level-2-domain-and-application). *Export domain*
+writes a single-domain archive; *Import a domain* on the Backup page reads
+one back in (**global administrator only**) — see [Exporting and importing a single
+domain](#exporting-and-importing-a-single-domain).
 
-`deploy/docker-compose.yml` pins an explicit version (`ghcr.io/mixeme/selfpost:X.Y.Z`),
-deliberately never `:latest`. The current pin is `1.1.0`. Intermediate
-CHANGELOG sections (`0.2.0`…`0.6.0`) record development cuts from before that
-image was published. Pinning matters because of the backup version check above:
-the panel binary's embedded version and the image tag that produced it are the
-same value by construction (the release CI stamps both from one git tag — see
-`.github/workflows/release.yml`), so the pin is what makes "restore into the
-same version" a checkable fact rather than a guess. Upgrade by bumping the tag
-deliberately, not by riding a moving target.
+### Domain-level DNS (SPF, DKIM, DMARC)
+
+For *every* sending domain you add in the panel:
+
+- **SPF** — a TXT record on the domain authorizing this server to send on its
+  behalf (e.g. `v=spf1 a mx ip4:<server IP> -all`, adjusted to your setup).
+- **DKIM** — a TXT record with the exact value the panel shows on that
+  domain's page (`domain page → DKIM TXT record`), one selector per domain.
+- **DMARC** — a `_dmarc` TXT record. The panel suggests `p=none` (monitoring
+  only, safe to publish immediately). On a send-only relay the sending domain
+  often has no inbox, so `rua=` is optional — configure a default report address
+  in *Settings* (see [Settings](#settings)) or per domain when you have a
+  mailbox that receives inbound mail elsewhere. If `rua=` points at another
+  domain, publish `_report._dmarc` on that hub domain too; the panel checks
+  it. Public mail hosts (Gmail, Outlook, …) cannot be used as external
+  report destinations.
+
+Skipping any of the three records is the single most common reason mail
+lands in spam even though SelfPost delivered it correctly — DKIM passing
+doesn't help if SPF/DMARC are absent. **Whenever you add a new domain in the
+panel, add its DNS records at the same time**, not later.
+
+Each domain's page shows a *DNS status* card comparing the published DKIM
+record against the key this server signs with, plus the domain's SPF,
+DMARC, and (when configured) DMARC report-authorisation records. Results are
+cached for a few minutes; use *Re-check* right after publishing a record.
+The SPF check is deliberately shallow — it looks for a mechanism that
+literally covers this server's address and does not follow `include:` or
+`redirect=`, so a record that authorizes the server through an include is
+reported as "cannot tell" rather than as a failure.
+
+Server-level DNS (the PTR/rDNS record) is a separate, once-per-machine scope
+— see [Server-level DNS](#server-level-dns-ptrrdns).
+
+### IP warmup
+
+A brand-new IP has no sending history, so receiving servers are cautious with
+it regardless of how correct your DKIM/SPF/DMARC are. Start with low volume to
+a domain, increase gradually over days/weeks rather than sending everything on
+day one, and check the IP against major blocklists (Spamhaus and similar)
+before and during warmup. This is inherent to how mail reputation works on the
+public internet, not something SelfPost's configuration can shortcut.
+
+### Rate limiting — level 2 (domain and application)
+
+Level 2 is optional, configured on each domain's page, and layers on top of
+the always-on [level-1 IP backstop](#rate-limiting--level-1-ip-backstop).
+Level-2 ceilings cannot exceed level 1 (the panel shows the level-1 values
+and rejects higher numbers). When a level-2 ceiling is exceeded, Postfix
+returns a 4xx and the refusal is recorded in [Deliveries](#deliveries) as
+`rejected`.
+
+**Level 2 — domain** — a message ceiling and window for **every** client IP
+sending as that domain. When unset, only level 1 applies for non-privileged
+senders.
+
+**Level 2 — application (trusted IPs)** — optional override on an
+application: list one or more client IPs and a ceiling **strictly above**
+the domain limit (still ≤ level 1). Connections from those IPs use the
+application ceiling and skip the domain check. Other IPs stay under the
+domain limit (or level 1 alone). An application override without trusted
+IPs is inactive.
+
+**Level 2 is best-effort, not a guarantee.** It runs inside the
+journal-milter and is deliberately fail-open: if the rate-limit lookup hits
+a store error, or the connecting client's IP is not available to the
+milter, level 2 is skipped and the message is accepted rather than held up.
+Level 1 is the backstop that keeps working even when level 2 cannot run.
+
+### Deliveries
+
+`/deliveries` is a searchable send log with server-side filters by domain
+and application. A row identifies its message and nothing more — time,
+sender, recipient, subject and status `queued` (accepted, not yet
+delivered), `sent` (handed off successfully), `deferred` (Postfix is
+retrying), `bounced` (final failure), or `rejected` (refused — for example
+by a [level-2 rate limit](#rate-limiting--level-2-domain-and-application));
+*Details* opens that row's own page (`/deliveries/{id}`). That page carries
+the sending domain, the application it was submitted under, the Postfix
+queue id and the journal id, beside the message's history — when it was
+accepted and what Postfix later reported for the recipient — and, under
+both, the `mail.log` lines for its queue id: the connection to the
+receiving server, the server's reply, and the status that reply was filed
+as. Rows outlive `mail.log`, so an older message's lines may have rotated
+away; the page says so. Retention is controlled by
+`SEND_LOG_RETENTION_DAYS`.
+
+### Exporting and importing a single domain
+
+Domain page → *Export domain* to write the file, *Backup* → *Import a
+domain* to read it back in. This moves one domain — its DKIM key and its
+applications' **working** SASL passwords — to a different SelfPost instance
+without regenerating anything, so DNS (the DKIM TXT record) doesn't need to
+change. Unlike a full restore (see [Full backup and
+restore](#full-backup-and-restore)), this works across different
+hostnames/instances. *Import* is global-administrator only; *export* is
+available to any user who can access the domain, **including a domain-admin**
+for a domain assigned to them — so a domain-admin can walk away with that
+domain's working SASL passwords in the clear. Weigh that when deciding which
+domains to assign to a domain-admin account.
+
+A domain export is a secret in the same way a full backup is, and can be
+encrypted the same way — see [Encrypting a backup or
+export](#encrypting-a-backup-or-export).

docs/plans/dmarc-reports.md

@@ -18,7 +18,8 @@ operator.
 - gzip + XML aggregate parsing → SQLite summaries per sending domain.
 - Panel page and/or per-domain section: recent reports, third-party senders,
   delivery health of report ingestion.
-- Reuse `admin.dmarc_report_email` and `domains.dmarc_rua` for DNS templates;
+- Reuse the `dmarc_report_email` setting (moved off the old `admin` table into
+  `settings` by migration `0005`) and `domains.dmarc_rua` for DNS templates;
   when enabled, suggest a SelfPost-hosted report address.
 
 **Out:**

docs/plans/domain-admin.md

@@ -1,259 +0,0 @@
-# Plan: domain-admin (domain administrator role)
-
-**Status:** agreed  
-**Version:** target bump **1.x** MINOR, given a compatible migration of the
-current administrator into a global one.  
-**Order:** recommended after [web-split](web-split.md) (done), before
-[inbound-relay](inbound-relay.md).
-
----
-
-## What this is
-
-Today the panel has exactly one subject: `RequireAuth` is a boolean gate, not a
-role ([web.go](../../internal/web/web.go) — the
-`mux.Handle("/", s.auth.RequireAuth(authed))` wrapper), and the session carries
-nothing beyond the fact of being signed in.
-
-Two panel roles:
-
-| Role | Scope |
-|------|-------|
-| **global** | Full panel except nothing new — same powers as today's single admin |
-| **domain_admin** | Only **assigned** domains (one or several; list set by global admin) |
-
-For each assigned domain, a domain-admin can:
-
-- applications (create, sender mode, password regeneration, delete, L2 limit);
-- DKIM/DNS status and recheck;
-- per-domain DMARC `rua=` (inherit / none / custom) — full control on the
-  domain page;
-- send log filtered to assigned domains;
-- domain export (encrypted `.spde` optional, same as today);
-- domain-level L2 rate limit.
-
-What stays **global-only** (domain-admin gets 404 or redirect):
-
-- adding and removing domains;
-- domain import;
-- creating/editing/deleting panel users and assigning domains;
-- `/reload`;
-- full backup (`/backup` — all of `/data` including every domain's `sasldb2`);
-- mail queue (`/mail-queue*`);
-- system log tail (`/system-log*`);
-- status page (`/status*`) — server-wide health, queue summary, reload, DNS
-  recheck of the **hostname**; same treatment as queue and system log.
-
-Domain-admin **self-service** on `/account`: username and password only (not
-global DMARC report email).
-
-## Why this extends v1.0
-
-[product.md](../product.md) puts "multiple panel users, roles" out of scope
-(one administrator). A second subject is a deliberate widening of the project's
-boundary, as inbound-relay is.
-
-The cost is phase-sized, not patch-sized:
-
-- a users table and their binding to domains;
-- the role in the session;
-- authorisation in every handler (not only on the route — today `{id}`/`{aid}`
-  are checked for nothing beyond existence);
-- reworking first-run setup and password change for several users;
-- accounting for the new subject in backup and domain export.
-
-*(The earlier wording of this item — "2FA and multiple administrators" — has
-been replaced: 2FA is off the table, and "multiple administrators" is narrowed
-to one specific role, because what is needed is not a second all-powerful admin
-but limited access for the owner of one or several domains, with the list set
-by the global administrator.)*
-
----
-
-## Schema and migration
-
-**New migration** `0005_panel_users.sql`:
-
-```sql
-CREATE TABLE users (
-    id                  INTEGER PRIMARY KEY AUTOINCREMENT,
-    username            TEXT NOT NULL UNIQUE,
-    password_hash       TEXT NOT NULL,
-    role                TEXT NOT NULL CHECK (role IN ('global', 'domain_admin')),
-    dmarc_report_email  TEXT NOT NULL DEFAULT '',
-    created_at          TEXT NOT NULL
-);
-
-CREATE TABLE user_domains (
-    user_id   INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-    domain_id INTEGER NOT NULL REFERENCES domains(id) ON DELETE CASCADE,
-    PRIMARY KEY (user_id, domain_id)
-);
-
--- Migrate existing administrator → global user (idempotent guard via admin count).
-INSERT INTO users (username, password_hash, role, dmarc_report_email, created_at)
-SELECT username, password_hash, 'global', dmarc_report_email, created_at
-FROM admin WHERE id = 1;
-
-DROP TABLE admin;
-```
-
-**Sessions:** keep `sessions.username` (no schema change). On login and
-`RequireAuth`, resolve username → `User` row (role + domain IDs). Stale session
-after username change behaves as today (`Lookup` fails → redirect login).
-
-**Backup/restore:** full backup already snapshots `selfpost.db` via
-`VACUUM INTO`; users and bindings restore with the DB. No manifest format change
-required (same `selfpost-full-backup`).
-
-**DMARC two levels:**
-
-- **Global** `users.dmarc_report_email` — only on global user's `/account`;
-  default `rua=` when a domain uses *inherit*.
-- **Per-domain** `domains.dmarc_rua` — domain-admin edits on the domain page
-  (existing handler); domain-admin never sees the global default field.
-
----
-
-## Principal model
-
-Request context carries a `Principal` (in `internal/web/auth`):
-
-```go
-type Role string // "global" | "domain_admin"
-
-type Principal struct {
-    ID       int64
-    Username string
-    Role     Role
-    Domains  []int64 // assigned domain IDs; empty for global (meaning "all")
-}
-```
-
-Helpers:
-
-- `CurrentPrincipal(r)` — from context;
-- `IsGlobal(p)` — `p.Role == "global"`;
-- `CanAccessDomain(p, domainID)` — global or `domainID` in `p.Domains`;
-- `CanAccessApp(p, app)` — `CanAccessDomain(p, app.DomainID)`.
-
-`lookupDomain` / `lookupApplication` in handlers call `CanAccess*` after
-existence check; return 404 (not 403) to avoid leaking IDs.
-
----
-
-## Route matrix
-
-| Method | Path | global | domain_admin |
-|--------|------|--------|--------------|
-| GET | `/` | → `/status` | → `/domains` |
-| GET | `/status`, `/status/fragment` | yes | **no** (404) |
-| POST | `/status/recheck` | yes | **no** |
-| GET | `/domains` | all domains | assigned only |
-| POST | `/domains` | yes | **no** |
-| POST | `/domains/import` | yes | **no** |
-| GET | `/domains/{id}` | yes | assigned |
-| POST | `/domains/{id}/dns-recheck` | yes | assigned |
-| GET/POST | `/domains/{id}/delete` | yes | **no** |
-| POST | `/domains/{id}/applications` | yes | assigned |
-| POST | `/domains/{id}/ratelimit` | yes | assigned |
-| POST | `/domains/{id}/dmarc` | yes | assigned |
-| POST | `/domains/{id}/export` | yes | assigned |
-| POST | `/applications/{aid}/*` | yes | if app in assigned domain |
-| POST | `/reload` | yes | **no** |
-| GET/POST | `/account` | username, password, global DMARC email | username, password only |
-| GET/POST | `/backup` | yes | **no** |
-| GET | `/deliveries*` | all (optional filter) | clamped to assigned domains |
-| GET | `/mail-queue*` | yes | **no** |
-| GET | `/system-log*` | yes | **no** |
-| GET | `/users` | list users | **no** |
-| GET/POST | `/users/new` | create user | **no** |
-| GET/POST | `/users/{uid}` | edit/delete user | **no** |
-| POST | `/logout` | yes | yes |
-
-**Deliveries:** for domain-admin, `sendLogData` forces filter to assigned
-domain set; dropdowns list only assigned domains/apps; reject `domain` query
-param outside assignment; `HandleDelivery` checks log row's `domain` field.
-
----
-
-## User management UI (global only)
-
-New routes under `/users`:
-
-- **List** — username, role, assigned domain names (or "all" for global).
-- **Create** — username, password, role (`domain_admin` default), multi-select
-  domains (required when role is `domain_admin`).
-- **Edit** — change password (optional), reassign domains, delete user.
-- **Guards:** cannot delete the last `global` user; cannot demote self to
-  `domain_admin` without another global user; domain-admin role cannot access
-  these routes.
-
-Templates: `users.html`, `user_form.html`; nav link visible only for global
-users.
-
----
-
-## Auth / setup / sessions
-
-- **Setup** (`/setup/{token}`): unchanged semantics — creates first **global**
-  user via `CreateGlobalUser`; `AdminExists` → `UserExists`.
-- **Login:** authenticate against `users` by username + bcrypt.
-- **Password change:** per-user `UpdateUser`; domain-admin cannot change
-  another user's password.
-- **Session rename / destroy others:** unchanged behaviour keyed by username.
-
----
-
-## Navigation
-
-[layout.html](../../internal/web/view/templates/layout.html) `nav` template:
-
-- **global:** all items today (status, domains, deliveries, mail queue, system
-  log, backup, settings) + **Users**.
-- **domain_admin:** domains, deliveries, settings only.
-
-Pass `IsGlobal` (or `Principal`) into every rendered page.
-
----
-
-## Security
-
-- **CSRF:** keep origin-check-only for now ([security.md](../security.md) ADR);
-  note in CHANGELOG that multi-user panel reopens the ADR — no CSRF tokens in
-  this phase.
-- **Export encryption:** optional password on domain export remains; full backup
-  encryption trigger ("second administrator") is satisfied by domain-admin
-  existing — no change required.
-- **Authorization tests:** table-driven tests for global vs domain-admin on
-  representative handlers; explicit `{aid}` cross-domain mutation blocked.
-
----
-
-## Implementation order
-
-1. Migration `0005_panel_users.sql` + `store/users.go` (CRUD, domain bindings).
-2. Auth: login against `users`, `Principal` in context, setup creates global user.
-3. `CanAccessDomain` / `CanAccessApp`; harden `lookupDomain` / `lookupApplication`.
-4. Route guards: global-only middleware or per-handler checks.
-5. Filter lists: dashboard, deliveries, domain detail DMARC inherit source.
-6. User management handlers + templates.
-7. Nav visibility + default redirect (`/`).
-8. Tests + `go build` / `go vet` / `go test`; CHANGELOG `[Unreleased]`.
-
----
-
-## Done when
-
-- A global administrator and a domain-admin with different rights both work
-  through the panel; the domain-admin cannot reach past the **assigned**
-  domains;
-- the current single admin migrates into a global one without losing access;
-- backup/restore accounts for users and their bindings;
-- `build`/`vet`/`test`/image green.
-
-## Risks
-
-- An incomplete `{id}`/`{aid}` check in a handler — access leaking to someone
-  else's domain;
-- breaking setup or backup — that would be a semver major, not 1.x.

docs/plans/domain-stats-auto-ratelimit.md

@@ -0,0 +1,187 @@
+# Plan: domain-stats-auto-ratelimit
+
+**Status:** candidate  
+**Date:** 2026-08-17  
+**Version:** `1.x` MINOR; migrations must stay compatible with `1.0.0`.
+
+---
+
+## Goal
+
+Give the operator **30-day sending statistics** per domain and per application
+(total volume, peak and average rate), and an optional **auto** level-2 rate
+limit that sets `max_messages` from the average rate (avg × multiplier) over the
+level-1 window.
+
+## Scope
+
+**In:**
+
+- Rolling **30-day** stats on each domain page (domain aggregate + per-app rows):
+  message count, peak msg/h, average msg/h.
+- Level-2 rate limit mode **manual** (today) or **auto** for domain and
+  application scopes.
+- Auto formula: `max_messages = ceil(avg_hourly × multiplier)`, window =
+  level-1 window (`RATE_LIMIT_WINDOW_SECONDS`); capped at level 1.
+- Background recalculation (e.g. every 6 h, alongside send-log prune); milter
+  reads stored `max_messages` / `window_seconds` only (no aggregates on the
+  hot path).
+- Panel UI: stats card, manual/auto toggle, multiplier field, read-only computed
+  limit in auto mode, optional «Recalculate now».
+- RBAC: domain-admin sees stats and may configure auto/manual for assigned
+  domains only; same authz as existing rate-limit handlers.
+- Tests, [guide.md](../guide.md), [CHANGELOG.md](../../CHANGELOG.md); security
+  review (Fable) for rate-limit path changes.
+
+**Out:**
+
+- Changing level 1 (Postfix env) — auto only fills level 2 under the L1 cap.
+- Automated IP warmup schedules ([guide.md](../guide.md) § IP warmup stays
+  operator-driven).
+- Prometheus/Grafana, alerting, APIs.
+- Counting level-1 refusals or `rejected` rows as sent volume.
+- Per-client-IP analytics.
+
+## Data source
+
+All metrics come from SQLite `send_log`, same rules as
+[`CountMessages`](../../internal/store/ratelimits.go):
+
+- One message = one distinct `queue_id` (many recipients = one count).
+- `status != rejected` (level-2 refusals never queued).
+- Level-1 refusals are **not** in `send_log` — stats under-count refusals;
+  document in UI copy.
+
+Retention today is env `SEND_LOG_RETENTION_DAYS` (default 90). Stats use the
+last **30 days** of rows still present. If retention < 30 days (after
+[send-log-retention](send-log-retention.md)), the stats window is
+`min(30, retention)` with a warning.
+
+### Metrics
+
+| Metric | Definition |
+|---|---|
+| **total** | `COUNT(DISTINCT queue_id)` in the stats window |
+| **peak rate** | maximum messages in any **hourly** bucket in that window (msg/h) |
+| **avg rate** | `total / hours_in_window`, where `hours_in_window = min(720, age of domain/app in hours, retention hours)` |
+
+Keys: `send_log.domain` (domain scope), `send_log.app_login` (application scope).
+
+## Architecture
+
+```mermaid
+flowchart LR
+  milter["journal-milter"] --> sendLog["send_log"]
+  sendLog --> statsQuery["StatsQuery 30d"]
+  statsQuery --> domainPage["domain page stats card"]
+  statsQuery --> autoJob["auto recalc job"]
+  autoJob --> rateLimits["rate_limits"]
+  rateLimits --> milter
+```
+
+1. **[`internal/store/stats.go`](../../internal/store/stats.go)** — `SendStats`
+   with `Total`, `PeakPerHour`, `AvgPerHour`; `DomainSendStats(name, since)` /
+   `AppSendStats(login, since)`.
+2. Hourly buckets: `strftime('%Y-%m-%d %H', created_at)` + `GROUP BY`; subquery
+   for peak; total via distinct `queue_id`.
+3. Indexes `idx_send_log_domain` and `idx_send_log_created_at` exist; add
+   composite `(domain, created_at)` only if profiling shows need.
+4. **Auto recalc** — panel goroutine (same interval as send-log prune): for each
+   `rate_limits` row with `mode = auto`, recompute `max_messages`, set
+   `auto_updated_at`. Milter unchanged except reading new columns via existing
+   `RateLimit` lookup.
+
+### Auto rate limit
+
+Extend [`RateLimit`](../../internal/store/ratelimits.go):
+
+```go
+type RateLimit struct {
+    // existing: Scope, RefID, AllowedIPs, MaxMessages, WindowSeconds
+    Mode           string  // "manual" | "auto"
+    AutoMultiplier float64 // default 2.5 when Mode == "auto"
+    AutoUpdatedAt  time.Time
+}
+```
+
+**Formula:**
+
+```
+avg_hourly = total_messages_in_window / hours_in_window
+max_messages = ceil(avg_hourly * auto_multiplier)
+window_seconds = L1 window (not editable in auto mode)
+max_messages = min(max_messages, L1 max)
+```
+
+When `total == 0`: auto limit stays **inactive** (same as empty manual limit);
+UI explains that traffic is required before auto can apply.
+
+**Application overrides** ([`handlers_ratelimit.go`](../../internal/web/handlers/handlers_ratelimit.go)):
+
+- Trusted IPs required.
+- Auto app ceiling **strictly above** domain limit when domain limit is active.
+- Ceiling ≤ L1.
+
+**Fail-open:** store errors during recalc must not weaken enforcement of the
+last successfully written limit; recalc failures are logged only.
+
+### Migration (`0006_rate_limit_auto.sql`)
+
+```sql
+ALTER TABLE rate_limits ADD COLUMN mode TEXT NOT NULL DEFAULT 'manual'
+  CHECK (mode IN ('manual', 'auto'));
+ALTER TABLE rate_limits ADD COLUMN auto_multiplier REAL;
+ALTER TABLE rate_limits ADD COLUMN auto_updated_at TEXT;
+```
+
+Existing rows → `manual`.
+
+### Domain export
+
+Today rate limits are **not** exported. This plan adds them (including
+`mode`, `auto_multiplier`) to domain transfer JSON — document as a boundary
+change in [guide.md](../guide.md) § Export.
+
+## Panel UI
+
+- Domain page ([`domain_detail.html`](../../internal/web/view/templates/domain_detail.html)):
+  - **Sending statistics (30 days)** — total, peak msg/h, avg msg/h.
+  - Per-application stats in the app list.
+  - Rate limit: Manual / Auto, multiplier (e.g. 1.5–5.0, default 2.5), read-only
+    computed max/window in auto mode, «Recalculate now».
+- Optional later: «30d» column on domain list (global admin only).
+
+## Tests
+
+- `internal/store/stats_test.go` — fixtures → total / peak / avg.
+- `internal/store/ratelimits_test.go` — auto recalc, L1 cap, app > domain.
+- Handler tests — auto form validation, multiplier bounds.
+- Milter tests — enforced limit matches last recalculated values.
+
+`go test` / `go vet` on touched packages.
+
+## Done when
+
+- Domain and app 30-day stats visible on the domain page; domain-admin scoping
+  enforced.
+- Manual/auto toggle works for domain and app; auto recalc updates `rate_limits`
+  and milter enforces stored ceilings.
+- Zero-traffic auto stays inactive with clear UI copy.
+- [guide.md](../guide.md) and [CHANGELOG.md](../../CHANGELOG.md) updated;
+  security review passed.
+
+## Risks
+
+- Heavy aggregation on large `send_log` tables — mitigate with indexes or
+  nightly rollups (phase 2).
+- Stats without level-1 visibility — mitigate with operator-facing caveat.
+- Auto limit too tight after a spike — multiplier is operator-tuned; show peak
+  alongside avg in auto UI.
+
+## Dependencies
+
+- [`send-log-retention`](send-log-retention.md) is a separate roadmap item but
+  should land before or in parallel so operators can set retention ≥ 30 days
+  from the panel.
+
+**Version:** `1.x` MINOR.

docs/plans/inbound-relay.md

@@ -3,8 +3,11 @@
 **Status:** agreed  
 **Version:** target bump **1.x** MINOR; **`2.x` possible** — to be settled once
 the implementation lands (do not fix a major in advance).  
-**Order:** recommended after [web-split](web-split.md) and
-[domain-admin](domain-admin.md).
+**Order:** the 2026-08-13 full-tree review follow-ups are closed (CHANGELOG
+`[Unreleased]`), so this is next up as the largest remaining 1.x+ **feature**.
+The domain-admin role
+and `internal/web` split have shipped — see [CHANGELOG](../../CHANGELOG.md)
+`[1.2.0]`.
 
 ---
 

docs/plans/logrotate-mode.md

@@ -1,89 +0,0 @@
-# Plan: logrotate-mode (mail.log stops rotating in some images)
-
-**Status:** candidate  
-**Version:** patch; no schema, no configuration surface.  
-**Order:** independent. Worth doing before anything that lets an instance run
-unattended for months.
-
----
-
-## What was observed
-
-The container log carries, on every start:
-
-```
-warning: Potentially dangerous mode on /etc/logrotate.d/mail: 0664
-error: Ignoring /etc/logrotate.d/mail because it is writable by group or others.
-```
-
-logrotate refuses a configuration file that group or others may write, so
-`mail.log` is never rotated in an image with that mode. It grows until the
-volume does.
-
-Measured across three images built on the same host from the same commit range:
-
-| Image built from | Mode of `/etc/logrotate.d/mail` |
-|---|---|
-| a sync made two days earlier | `0644` — works |
-| a later sync (`tar -czf -` pipe from a Windows checkout) | `0666` |
-| a later sync (`git archive` from the same checkout) | `0664` |
-
-So the file is fine in the repository (git records `100644`) and is spoiled on
-the way into the build context. `COPY build/logrotate-mail.conf
-/etc/logrotate.d/mail` ([build/Dockerfile](../../build/Dockerfile)) takes the
-mode from the context as it finds it, and an archive produced from a checkout
-without POSIX permissions carries the umask-widened mode instead of the one git
-recorded.
-
-**Not established:** whether images built by the release workflow are affected.
-They are built from a checkout on Linux, where the mode should survive as
-`0644`, but the published image could not be pulled to check. Confirm before
-concluding that only locally built images have this.
-
-## Why it deserves a plan rather than a one-line fix
-
-Three separate things are wrong, and fixing only the visible one leaves the
-other two.
-
-1. **The image trusts the build context's file modes.** Every `COPY` in the
-   Dockerfile has this property, not just this one; the scripts happen to be
-   `chmod +x`-ed afterwards, which is why they were never noticed.
-2. **The failure is silent.** `logrotate-loop.sh` runs
-   `logrotate /etc/logrotate.d/mail` and only reports a failure on a non-zero
-   exit — but logrotate *ignores* the file and exits 0, so the loop reports
-   nothing and the operator's only clue is a warning printed once at start.
-3. **Nothing checks the outcome.** No test or health check notices that
-   `mail.log` has not rotated, and the panel's Status page has no view of it.
-
-## Directions to weigh
-
-- `COPY --chmod=0644` on the configuration files (and an explicit mode on the
-  scripts instead of the later `chmod +x`), which makes the image's file modes a
-  property of the Dockerfile rather than of whoever built it. Needs a check of
-  the minimum BuildKit version the project is willing to require.
-- Or an explicit `chmod` in the same `RUN` that already fixes the scripts —
-  cruder, no build-time requirement.
-- Make `logrotate-loop.sh` fail loudly: `logrotate` has `--debug`-free ways to
-  be told to care, but the simplest reliable check is that the loop verifies
-  the configuration is readable-and-not-writable before entering the loop, and
-  exits non-zero so supervisord reports it.
-- Consider whether the e2e stack should assert that a rotation actually happens
-  (it can run with a short `LOGROTATE_INTERVAL_SECONDS`).
-
-## Done when
-
-- An image built from a Windows checkout and one built by the release workflow
-  both carry `0644`, and rotation runs in both.
-- A configuration logrotate would ignore makes the container say so in a way an
-  operator will see, rather than exiting 0.
-- The dev loop's sync step cannot silently widen file modes again, or the image
-  no longer cares if it does.
-
-## Risks
-
-- Low blast radius, but it touches the image's startup path — a mistake here is
-  a container that will not start rather than a log that does not rotate.
-- The `create 0640 postfix selfpost` line in the rotate configuration is load
-  bearing (see the comment in `logrotate-loop.sh`: a postlogd-triggered recreate
-  lands the file unreadable by the unprivileged panel). Any rework of the
-  configuration must keep it.

docs/plans/queue-retries.md

@@ -0,0 +1,141 @@
+# Plan: queue-retries (Postfix retry policy in the panel)
+
+**Status:** agreed  
+**Date:** 2026-08-13  
+**Version:** patch; no schema, no configuration surface.  
+**Order:** small panel item; does not wait on inbound-relay.
+
+---
+
+## Goal
+
+Show the operator how Postfix retries deferred mail: first retry delay, later
+backoff cap, and how long a message stays in the queue before it bounces. The
+numbers come from this container's effective Postfix config, not from
+hard-coded copy.
+
+## Scope
+
+**In:**
+
+- A static «How delivery retries work» card on `/mail-queue` (global
+  administrator). Not inside the HTMX poll fragment — the snapshot is taken at
+  panel start.
+- The same human-readable intervals in `/deliveries/{id}` history for
+  `deferred` and `bounced` (domain administrators never see Mail queue).
+- Operator docs: [guide.md](../guide.md) Mail queue bullet;
+  [architecture.md](../architecture.md) notes the one-shot `postconf -h` at
+  panel start. [CHANGELOG.md](../../CHANGELOG.md) `### Added`.
+
+**Out:**
+
+- Changing Postfix retry parameters, or exposing them as panel settings
+  ([product.md](../product.md): Postfix is used as-is).
+- An `attempts` column on `send_log`, or «attempt 3 of N» — Postfix has no
+  attempt budget; it is time-based.
+- Counting `status=deferred` lines in `mail.log` or reading `postcat`. Each
+  attempt is already on the delivery page's log table; the journal stores only
+  the last status.
+- Duplicating the card on Status (summary + link to Mail queue already exist).
+- Re-reading `postconf` on every HTTP request.
+
+## Architecture
+
+Acceptance is still synchronous SMTP. Delivery stays in Postfix's on-disk
+queue. SelfPost does not enqueue, retry, or deliver.
+
+```mermaid
+flowchart LR
+  smtpAccept["SMTP 250 accepted"] --> postfixQueue["Postfix queue"]
+  postfixQueue -->|"deferred: backoff until queue lifetime"| retry["Retry MX"]
+  retry -->|sent| done["sent"]
+  retry -->|lifetime elapsed or 5xx| bounce["bounced"]
+  postfixQueue --> mailQueuePage["/mail-queue policy card"]
+  postfixQueue --> deliveryPage["/deliveries/id history copy"]
+```
+
+[build/postfix-config.sh](../../build/postfix-config.sh) does not set
+`queue_run_delay`, `minimal_backoff_time`, `maximal_backoff_time`,
+`maximal_queue_lifetime`, `bounce_queue_lifetime`, or `delay_warning_time`.
+Debian/Postfix 3.x compiled-in defaults therefore apply unless the operator
+overrides them (`postconf -e` inside the container).
+
+### Loading the numbers
+
+Once, when the HTTP role starts ([cmd/panel/httpserver.go](../../cmd/panel/httpserver.go),
+after `postfix-config.sh` has run):
+
+```
+postconf -h queue_run_delay minimal_backoff_time maximal_backoff_time maximal_queue_lifetime bounce_queue_lifetime delay_warning_time
+```
+
+`postconf -h`, not a parse of `/etc/postfix/main.cf`: stock values are not
+written to the file. `postconf` is the effective config, including a manual
+override.
+
+- Fixed argv, no user input — same pattern as
+  [postfix.Queue](../../internal/postfix/queue.go) /
+  [security.md](../security.md).
+- Cache on `handlers.Config` (via `web.Config`). The HTMX fragment does not
+  call `postconf`.
+- A live `postconf -e` is visible after the next panel (or container) restart.
+  While the process is up, the panel shows the start-up snapshot.
+- Parse Postfix time units (`300s`, `5d`, `1h`, a bare number is seconds) in
+  `internal/postfix`. Format human strings (`5 minutes`, `5 days`,
+  `about 1 hour 7 minutes`) in one place so the Mail queue card and
+  `deliveryEvents` cannot drift.
+- If `postconf` is missing (unit tests on Windows, binary outside the
+  container): log a warning, fall back to Postfix 3.x compiled-in defaults
+  (`300s` / `4000s` / `5d` / `0`), and put a muted note on the card. Tests
+  stub the lookup (as `queueIDs` in the log-tailer) or pass a fixture on
+  `Config`. Do not fail panel start.
+
+Typical stock values, for orientation only — the UI prints whatever
+`postconf` returned:
+
+| Parameter | Stock | Meaning |
+|---|---|---|
+| `queue_run_delay` / `minimal_backoff_time` | `300s` | First retry and deferred-queue scan |
+| `maximal_backoff_time` | `4000s` | Cap on the doubling gap (~1 h 7 min) |
+| `maximal_queue_lifetime` | `5d` | Then bounce |
+| `delay_warning_time` | `0` | No delay warning to the sender |
+
+## Panel copy
+
+Mail queue card facts: first retry; later retries (doubling, capped);
+kept in queue; then bounced. Short prose: there is no fixed attempt count; a
+`deferred` message stays in this listing until it is delivered or the queue
+lifetime runs out.
+
+`deliveryEvents(row, policy)`:
+
+- `deferred`: retries, first after X, then with increasing gaps up to Y, for
+  up to Z.
+- `bounced`: or Postfix gave up after Z in the queue.
+
+## Tests
+
+- Duration parser: `5d`, `300s`, `4000s`, `1h`, `0`, bare number.
+- `/mail-queue` handler: card shows the fixture policy's human strings, not a
+  live `postconf`.
+- Delivery page / `deliveryEvents`: `deferred` and `bounced` contain those
+  strings ([handlers_monitor_test.go](../../internal/web/handlers/handlers_monitor_test.go)).
+- [templates_test.go](../../internal/web/view/templates_test.go): pass the new
+  fields if rendering `mail_queue` requires them.
+
+`go test` / `go vet` on the touched packages.
+
+## Done when
+
+- `/mail-queue` states this Postfix's first retry, backoff cap, and queue
+  lifetime.
+- A `deferred` / `bounced` delivery page uses the same intervals.
+- A manual `postconf -e maximal_queue_lifetime=2d` followed by a panel restart
+  changes what the panel prints.
+- Guide and architecture describe the snapshot; CHANGELOG has an Added entry.
+
+## Risks
+
+- Showing compiled-in fallbacks when `postconf` failed would mislead if the
+  operator had overridden them — mitigate with the muted note on the card.
+- Inventing a max-attempt count would be false; the copy must stay time-based.

docs/plans/send-log-retention.md

@@ -0,0 +1,124 @@
+# Plan: send-log-retention
+
+**Status:** candidate  
+**Date:** 2026-08-17  
+**Version:** `1.x` MINOR; no schema migration required (uses existing `settings` table).
+
+---
+
+## Goal
+
+Let the **global administrator** change how long delivery journal rows
+(`send_log`, `/deliveries`) are kept, from the panel — without editing `.env`.
+
+## Context (as-built)
+
+Retention **already exists**, but only via environment:
+
+- `SEND_LOG_RETENTION_DAYS` (default **90**) in `.env` / Compose.
+- [`cmd/panel/main.go`](../../cmd/panel/main.go) passes it to
+  [`logtail.Run`](../../internal/logtail/logtail.go).
+- [`retentionLoop`](../../internal/logtail/logtail.go) prunes via
+  [`DeleteSendLogBefore`](../../internal/store/sendlog.go) every **6 hours**.
+- No panel control; [`handlers_monitor.go`](../../internal/web/handlers/handlers_monitor.go)
+  hardcodes «ninety days» in copy.
+- Migration `0001_init.sql` describes `settings` as the place for «retention
+  overrides», but no UI writes that key yet.
+
+This plan moves the **effective** retention into SQLite `settings`, with env as
+bootstrap only.
+
+## Scope
+
+**In:**
+
+- Settings card on `/settings` (global administrator only): **Send log
+  retention (days)**.
+- Key `send_log_retention_days` in [`settings`](../../internal/store/settings.go).
+- Validation: integer range **7–365** (exact bounds fixed at implementation).
+- On first use: if setting missing, seed from env
+  (`SEND_LOG_RETENTION_DAYS`, default 90) at panel start or first save.
+- Log-tailer reads the setting **each prune cycle** (no container restart).
+- Delivery pages and guide copy show the **current** retention, not a hardcoded
+  90.
+- Tests; [guide.md](../guide.md); [CHANGELOG.md](../../CHANGELOG.md).
+
+**Out:**
+
+- Per-domain retention (instance-wide only).
+- `mail.log` rotation (logrotate, 14 daily files — unchanged).
+- Immediate prune on save when lowering retention (next 6 h cycle is enough;
+  optional «Prune now» not in v1).
+- Domain-admin access to this setting.
+
+## Architecture
+
+```mermaid
+flowchart LR
+  settingsPage["/settings form"] --> sqlite["settings.send_log_retention_days"]
+  env["SEND_LOG_RETENTION_DAYS bootstrap"] --> sqlite
+  sqlite --> retentionLoop["logtail retentionLoop"]
+  retentionLoop --> prune["DeleteSendLogBefore"]
+```
+
+1. **Read path** — `GetSendLogRetentionDays()`: settings value if valid, else env
+   default.
+2. **Write path** — POST `/settings` (global admin): validate, `SetSetting`,
+   flash confirmation.
+3. **Prune path** — change [`logtail.retentionLoop`](../../internal/logtail/logtail.go)
+   to accept `func() int` or `RetentionReader` that queries settings each cycle
+   (same 6 h ticker).
+4. **Copy** — inject retention days into delivery list/detail templates and
+   remove hardcoded «ninety days».
+
+`SEND_LOG_RETENTION_DAYS` remains documented in [guide.md](../guide.md) as the
+**initial default** until changed in Settings.
+
+## Relation to domain-stats-auto-ratelimit
+
+[domain-stats-auto-ratelimit](domain-stats-auto-ratelimit.md) uses a **30-day**
+stats window. Requires effective retention ≥ 30 for full accuracy. When
+retention < 30:
+
+- Stats UI shows a warning and uses `min(30, retention)` as the window, or
+- Settings validation warns when saving a value below 30 while stats/auto are
+  enabled (pick one at implementation; document in guide).
+
+Recommended roadmap order: **send-log-retention** before or parallel with
+domain-stats-auto-ratelimit.
+
+## Panel UI
+
+New card on [`settings.html`](../../internal/web/view/templates/settings.html)
+(global admin block, near rate limits or under a «Deliveries» heading):
+
+- Number input: retention days (7–365).
+- Muted copy: rows older than this are deleted from `/deliveries`; main driver
+  of `/data` growth; does not affect `mail.log` rotation.
+
+Domain administrators keep the narrow credentials-only settings page.
+
+## Tests
+
+- Save/load setting; reject out-of-range values.
+- `retentionLoop` uses updated value without process restart (mock reader).
+- Bootstrap: empty settings → env default used for prune.
+- Template/delivery copy reflects configured days.
+
+`go test` / `go vet` on touched packages.
+
+## Done when
+
+- Global admin can set retention on `/settings`; value persists in SQLite.
+- Prune uses the panel value on the next cycle; env remains bootstrap default.
+- Guide documents panel vs env; CHANGELOG entry added.
+- Hardcoded «ninety days» removed from delivery UI.
+
+## Risks
+
+- Operator lowers retention while bookmarking old delivery URLs — existing
+  behaviour; copy already notes pruned rows are gone.
+- Settings change without restart — must be tested so log-tailer never keeps a
+  stale int from panel start only.
+
+**Version:** `1.x` MINOR.

docs/plans/visual-style.md

@@ -1,226 +0,0 @@
-# Plan: visual-style
-
-**Status:** agreed  
-**Version:** no bearing on semver — presentation only, no schema and no route
-changes.  
-**Order:** independent of the feature roadmap; may be taken up between feature
-items.
-
----
-
-## Goal
-
-Bring the control panel's surface in line with the mark that was approved in
-[selfpost-proof.html](../assets/selfpost-proof.html): its palette, its
-typography, and the plainness of its components. Today the panel is a default
-blue-on-cool-grey admin theme standing next to a warm brick stamp, so the mark
-reads as pasted onto someone else's page.
-
-## Scope
-
-**In:**
-- `internal/web/view/static/panel.css` — colour tokens, typography, spacing,
-  every component rule.
-- `internal/web/view/static/` — three self-hosted font files.
-- Templates, only where a class has to be added or a wrapper introduced for a
-  rule to have something to attach to.
-- `NOTICE` — the OFL attribution the font files oblige.
-
-**Out:**
-- Any change to what a page does, which pages exist, or what an operator has to
-  click. No new features, no copy rewriting.
-- The navigation's position and the two-column shell. The proof's panel mock
-  shows a horizontal bar on a dark header; the panel's left column also carries
-  the per-page section index (`.sections` plus the scroll-spy in `panel.js`),
-  which that layout has nowhere to put. Keeping the column is a deliberate
-  divergence from the mock, not an oversight.
-- The mark files themselves (`logo.svg`, `logo-compact.svg`, `favicon.*`) —
-  already drawn, already converted to outlines.
-
-## Constraint that shapes everything
-
-The panel's Content-Security-Policy is a plain `default-src 'self'` with no
-inline-style exemption ([security.md](../security.md)). Every rule lives in
-`panel.css`; a `style="..."` attribute in a template is blocked and silently
-does nothing. Self-hosted fonts are served from the panel's own origin and are
-therefore already covered — no CSP change is needed, and none may be made.
-
-## Typography
-
-IBM Plex, self-hosted. The mark is Plex converted to outlines, so the panel
-setting its own name in Segoe UI or Cantarell is the seam this whole item
-exists to close.
-
-| File | Covers | Size |
-|---|---|---|
-| `static/ibm-plex-sans.woff2` | variable, weights 100–700, latin | 45.7 KB |
-| `static/ibm-plex-mono-400.woff2` | mono regular, latin | 14.8 KB |
-| `static/ibm-plex-mono-600.woff2` | mono semibold, latin | 15.7 KB |
-
-76 KB in total, in a 20 MB binary. The variable file replaces what would
-otherwise be five static weights and lets the scale below use 300 and 500
-without paying per weight.
-
-Monospace is the one the operator actually reads: DKIM records, `mail.log`
-lines, application logins, socket paths, generated passwords. `ui-monospace`
-resolves to Consolas, SF Mono or DejaVu Sans Mono depending on the operator's
-machine, and those differ in advance width — the six-column send log wraps
-differently for each. A shipped mono makes those tables one layout.
-
-| Role | Family | Size | Weight |
-|---|---|---|---|
-| Body | sans | 15px / 1.5 | 400 |
-| `h1` | sans | 1.55rem, tracking −0.01em | 300 |
-| `h2` | sans | 1.05rem | 600 |
-| `label` | sans | 0.9rem | 600 |
-| Nav entry / active | sans | 0.95rem | 400 / 600 |
-| `th` | **mono**, uppercase, tracking 0.08em | 0.75rem | 500 |
-| `.st` status badge | **mono** | 0.78rem | 500 |
-| `.code`, `.mono`, `.metric` | **mono** | 0.85rem | 400 |
-
-`font-display: swap`, so a cold load shows the system stack for a frame rather
-than blank text.
-
-## Colour tokens
-
-Names stay as they are wherever they already exist: the dark scheme reassigns
-the same custom properties, which is why no rule in the file needs
-`!important`. Warm neutrals replace the cool greys; brick becomes the accent.
-
-| Token | Light | Dark |
-|---|---|---|
-| `--bg` | `#F4F2ED` | `#16181B` |
-| `--fg` | `#12161C` | `#E9E6E0` |
-| `--muted` | `#6B7684` | `#9AA1A9` |
-| `--card-bg` | `#FFFFFF` | `#1D2024` |
-| `--border` | `#DEDCD7` | `#2C2F34` |
-| `--control-border` | `#CBC8C1` | `#3A3E44` |
-| `--input-bg` | `#FFFFFF` | `#14161A` |
-| `--code-bg` | `#EFEDE9` | `#14161A` |
-| `--surface-bg` | `#EAE7E0` | `#23262B` |
-| `--accent-fill` / `--on-accent` | `#7A3B2E` / `#FFFFFF` | `#8E4535` / `#FFFFFF` |
-| `--accent-text` | `#7A3B2E` | `#CE7B66` |
-| `--nav-active-bg` | `#EDE4DE` | `#2A1F1B` |
-
-Brick splits into a fill and a text value because `#7A3B2E` on `#16181B` is
-about 2:1 — unreadable as a dark-scheme link. The fill lightens just enough to
-keep white on it above 4.5:1; the text value lightens further.
-
-Status families (`--st-ok-*`, `--st-warn-*`, `--st-error-*`, `--st-unknown-*`),
-the flash, the credential card and `--danger-*` keep their hues and are only
-warmed to sit on paper. The one thing to watch is brick against `st-error` red:
-the proof rejected several candidate colours precisely so that the mark would
-not read as a status, and the same test now applies to every brick button
-standing in a row of `error` badges.
-
-## Components
-
-Everything already in `panel.css`, in the order it appears there: card, form
-controls, buttons (filled, outlined, danger), flash, table, status badge,
-`.code`, nav (brand, links, sections, session), application list and its
-disclosure panels, credential card, status page meters and facts, delivery
-timeline, log tables, split layout, encrypt fields, footer.
-
-Two component-level changes rather than pure repaints, both forced by the
-accent:
-
-- Row actions (`td.actions a.danger`, `Delete`) become outlined instead of
-  filled. A filled red button in a table row next to a filled brick button
-  reads as one block of colour.
-- Nav entries carry the active state as brick text on a warm tint rather than
-  the current blue tint.
-
-## Order of work
-
-1. Fonts into `static/`, `@font-face` and the type scale in `panel.css`,
-   `NOTICE` attribution. Nothing else changes shape.
-2. Token block: light and dark, both schemes in one pass.
-3. Chrome: `layout.html`'s nav, footer, shell.
-4. Signed-out pages: `login`, `setup` — the mark and one card, where the seam
-   is worst.
-5. `dashboard`, `domain_detail`, `domain_delete`.
-6. `deliveries`, `deliveries_rows`, `delivery`.
-7. `status` + `status_body`, `mail_queue*`, `system_log*`.
-8. `backup`, `account`, `users`, `user_form`, `encrypt_fields`.
-9. `CHANGELOG.md` under `[Unreleased]`.
-
-## Verification
-
-- Every page rendered locally and screenshotted in both schemes before and
-  after (`panel.exe` on Windows, headless Edge), including a 375px-wide pass —
-  the nav column and the wide tables are where a repaint breaks layout.
-- Contrast: body text and every status badge at 4.5:1 or better against its own
-  background, UI borders at 3:1. Brick on white is 7.3:1 by the proof's own
-  measurement; the dark-scheme values above are the ones to re-check.
-- `go build ./... && go vet ./... && go test ./...`; the template guards in
-  `internal/web/view/templates_test.go` must stay green, and the static-asset
-  ETag test grows to cover the three font files.
-- No `style=` attribute anywhere in `templates/` — the CSP would drop it.
-
-## What is done
-
-The restyle itself landed in `652f1fe`, with the table-wrapping fixes it
-surfaced in `f44f533`. Every page in the order above was rendered in both
-schemes from a panel running locally and checked: the signed-out pair, the
-domain list empty and with three domains, the whole domain page (credential
-card, DKIM/SPF/DMARC, DNS status, applications, rate limit, export, danger
-zone), the delete confirmation, the send log with rows, a single delivery,
-status, mail queue, system log, backup, settings, users and the user form.
-
-Two of those need standing in for what the container provides: `supervisorctl`,
-`saslpasswd2` and `postmap` stubs on `PATH`, `postfix/`, `opendkim/keys/` and
-`sasl/` created inside the data dir by hand, and rows seeded into `send_log` —
-without them the domain, application and send-log pages do not exist locally.
-
-## Outstanding
-
-Nothing here blocks the item; each is written down so it is not rediscovered.
-
-1. **Send-log status is bare text**, while every other status in the panel is a
-   `.st` badge. Making it one is not a repaint: it needs a mapping from
-   `sent`/`queued`/`deferred`/`bounced` onto the four badge colours, which is a
-   judgement about severity (is `deferred` a warning?) rather than a style.
-   **Needs a decision before it is written.**
-2. **The panel overflows horizontally at 375px** — `main` and its cards render
-   wider than the window and the page scrolls sideways. Reproduced with the
-   stylesheet at `f59befd` too, so it predates this work; tracked separately.
-   Removing the navigation does not fix it, so it is in `main`/`.card`, not in
-   the bar the `@media (max-width: 66rem)` block lies down.
-3. **Three views were only ever seen empty**: the mail queue with entries, the
-   system log with lines, and a delivery's own `mail.log` lines (`table.log`).
-   All three need a running Postfix, so they are a test-server check, not a
-   local one. `table.log` is the only restyled component with no screenshot
-   behind it.
-4. ~~**CSP and the font ETags**~~ — **done** on the test server at
-   `1.1.0-post.669f928`. The policy is unchanged
-   (`default-src 'self'; object-src 'none'; base-uri 'none'; form-action 'self';
-   frame-ancestors 'none'`) and admits all three fonts, which come back as
-   `font/woff2` with `Cache-Control: no-cache` and a content ETag: a matching
-   `If-None-Match` gets 304, a stale one gets the bytes. The signed-out page
-   renders in Plex over the network.
-5. **`font-display: swap` has never been observed** — every render had the fonts
-   already on disk. Worth one cold load over the network to see how long the
-   system stack is on screen.
-
-## Done when
-
-- The panel and the mark read as one design in both schemes, at the reading
-  measure and on the wide data pages.
-- Nothing an operator does changed: same pages, same controls, same copy.
-- Fonts are served from the panel's own origin under the unchanged CSP, and the
-  image works with no network access.
-- `NOTICE` credits IBM Plex (OFL-1.1); build, vet and tests are green.
-- The three views in **Outstanding** 3 are seen with real data on the test
-  server, and 4 is confirmed there.
-
-## Risks
-
-- **Visual regression across 21 templates.** The panel has pages that are only
-  reachable mid-workflow (the credential card, the delete confirmation, the
-  encrypt fields). Mitigation: the page order above is a checklist, and each
-  step is screenshotted rather than assumed.
-- **Brick against the error red.** If the two fight in a real row of the send
-  log, the accent gets pulled back to the mark and the buttons stay neutral —
-  the mark's colour is fixed, the panel's accent is the negotiable one.
-- **Thin weights on dark.** `h1` at 300 is the one place a variable font makes
-  it easy to go too light; check it on the dark scheme before keeping it.

docs/plans/web-split.md

@@ -1,70 +0,0 @@
-# Plan: web-split (splitting `internal/web`)
-
-**Status:** done (see [CHANGELOG](../CHANGELOG.md) `[1.1.0]`)  
-**Version:** `1.x`; an internal refactor, it does not force a break on its own.
-
----
-
-## What this is
-
-`internal/web` is the project's largest package: ~50 files (templates and
-static assets included), ~25 `.go` files and ~4000 lines of Go, with the
-handlers for every panel section, sessions, security headers, origin checking,
-form validation and template rendering all sitting in one flat namespace.
-
-The candidates to split out are `web/handlers` and `web/auth`, or a cut along
-the panel's own domains.
-
-## Why now
-
-At its current size the flat package reads fine: the file names
-(`handlers_domains.go`, `handlers_apps.go`, `handlers_monitor.go`) do the work
-directories would, and splitting would force exporting what is package-private
-today — widening the internal API for cosmetics.
-
-It starts to pay off once the package grows: **domain-admin** and
-**inbound-relay** both add code to it — the role brings authorisation into
-every handler, the inbound relay brings its own pages and handlers for inbound
-domains. The refactor is cheaper before that growth than after it.
-
-## Recommended order
-
-**web-split → domain-admin → inbound-relay** (see the
-[roadmap](../roadmap.md)).
-
-1. **web-split** — lay down the package structure (including a place for
-   `web/auth`) while there are no cross-cutting edits from the role and no new
-   inbound handlers.
-2. **domain-admin** — authorisation in every handler builds on a package layout
-   already chosen.
-3. **inbound-relay** — a new vertical slice; easier to add to an already split
-   package than to refactor alongside the two features before it.
-
-The order is a recommendation, not a blocker.
-
-## Chosen scheme
-
-**Horizontal split into four packages** (decided at implementation):
-
-```
-internal/web/          # Config, Server, New, Handler — composition root; security.go
-internal/web/view/     # embed templates/static, render/renderFragment, staticHandler
-internal/web/auth/     # session, login/logout/setup, requireAuth, currentUser
-internal/web/validate/ # shared form validation (avoids auth ↔ handlers import cycle)
-internal/web/handlers/ # all authenticated page handlers (handlers_*.go)
-```
-
-`cmd/panel` keeps importing only `internal/web`. Subpackages are not exported
-beyond what the composition root needs.
-
-## Done when
-
-The package is split along the scheme above. After the split: `build`/`vet`/`test`
-green, the panel's behaviour unchanged.
-
-## Risks
-
-- Splitting too early — a superfluous internal API and churn with nothing to
-  show for it;
-- leaving it until after the growth — a harder refactor, tangled up with the
-  features.

docs/product.md

@@ -47,17 +47,21 @@ Explicitly excluded to prevent scope creep:
 
 - Inbound mail (IMAP/POP3, mailboxes, delivery to user inboxes)
 - Webmail
-- Multi-user panel / organisations / roles — one administrator; managing
-  **multiple sending domains** is in scope (see below)
+- Organisations / tenancy beyond global + domain-admin roles; managing
+  **multiple sending domains** under one global administrator is in scope (see
+  below)
 - Inbound antispam/antivirus (rspamd, ClamAV, etc.)
 - A custom MTA — Postfix is used as-is
 - Dovecot or a full mail stack for SASL — Cyrus SASL (`sasldb2`) only
 
-Agreed **1.x+** extensions (optional inbound relay, domain-admin role) are
-tracked in [roadmap.md](roadmap.md) and [plans/](plans/). Inbound relay targets
-a 1.x MINOR bump by default; a 2.x major remains possible pending
-implementation. Items still marked *candidate* in the roadmap require explicit
-approval before coding.
+The **domain-admin** role ships in the current line (global administrator plus
+domain administrators with assigned domains). The optional **inbound relay** is
+the main agreed **1.x+** extension still on the
+[roadmap](roadmap.md) — it targets a 1.x MINOR bump by default; a 2.x major
+remains possible pending implementation. Items marked *candidate* in the
+roadmap require explicit approval before coding (including **send-log retention
+in Settings**, **30-day send statistics**, and **auto level-2 rate limits** —
+see linked plans there).
 
 ---
 
@@ -102,5 +106,6 @@ Adding a domain does **not** create an application automatically.
 - **Delete domain** — removes DKIM key and **all** its applications.
 - **Delete application** — removes only that app's SASL and map entries.
 
-This is not multi-tenancy (one admin); it is one owner operating several
-sending domains with independent application credentials.
+This is not multi-tenancy; it is one owner (or a small team with global and
+domain-scoped roles) operating several sending domains with independent
+application credentials.

docs/roadmap.md

@@ -15,7 +15,9 @@ planned but unlisted.
 
 **Versioning:** SemVer MINOR in the **1.x+** line by default (`1.1.0`…), as long
 as defaults and migrations stay compatible with `1.0.0`. A major `2.x` only for
-an explicit break.
+an explicit break. One such break, when 2.x is cut for any reason, is
+[schema-squash](#schema-squash) — replacing the 1.x SQLite migration chain
+with a baseline. That item does not by itself justify a major.
 
 **Process:** [development.md](development.md). The history of closed phases is
 in `git log` and [CHANGELOG.md](../CHANGELOG.md).
@@ -26,22 +28,50 @@ in `git log` and [CHANGELOG.md](../CHANGELOG.md).
 
 | ID | Topic | Status | Plan |
 |---|---|---|---|
-| domain-admin | Domain administrator role | **agreed** | [plans/domain-admin.md](plans/domain-admin.md) |
+| queue-retries | Postfix retry policy in the panel (queue lifetime, backoff) | **agreed** | [plans/queue-retries.md](plans/queue-retries.md) |
 | inbound-relay | Inbound relay (backup-MX / forwarding) | **agreed** | [plans/inbound-relay.md](plans/inbound-relay.md) |
+| send-log-retention | Send-log retention days in panel Settings | candidate | [plans/send-log-retention.md](plans/send-log-retention.md) |
+| domain-stats-auto-ratelimit | 30-day send stats + auto level-2 rate limit | candidate | [plans/domain-stats-auto-ratelimit.md](plans/domain-stats-auto-ratelimit.md) |
 | contributing | `CONTRIBUTING.md` | candidate | — |
-| visual-style | Panel visual style | **agreed** | [plans/visual-style.md](plans/visual-style.md) |
 | dmarc-reports | DMARC aggregate report ingestion and panel UI | candidate | [plans/dmarc-reports.md](plans/dmarc-reports.md) |
-| logrotate-mode | `mail.log` stops rotating in some builds | candidate | [plans/logrotate-mode.md](plans/logrotate-mode.md) |
+| panel-docs | In-panel operator documentation | candidate | — |
+| schema-squash | Squash SQLite migrations into a 2.x baseline | **2.x** | — |
 
-**Recommended order** (not binding): **domain-admin →
-inbound-relay** — role-wide authorisation first, then the inbound relay vertical
-slice. Deviating is allowed; there are no hard phases here.
+**Recommended order** (not binding): **queue-retries** is a small panel item
+that can land first or in parallel; the next feature is **inbound-relay**.
+**send-log-retention** can land before or beside **domain-stats-auto-ratelimit**
+(panel retention ≥ 30 days helps the stats window). The 2026-08-13 full-tree
+review follow-ups (send-log authorization,
+fail-closed paths, docs, GUI, tests, licence) are closed — history in
+[CHANGELOG.md](../CHANGELOG.md) `[Unreleased]` and git. Candidates need
+explicit agreement before they join the queue.
 
 After a context reset, pick an item marked `agreed` or `in progress`, then work
 the checklist in its linked plan.
 
 ---
 
+## queue-retries
+
+**Goal:** show on Mail queue and on a delivery's history how this Postfix
+retries deferred mail — first delay, backoff cap, queue lifetime — reading
+the effective config (`postconf -h`) once at panel start so a manual
+override is visible.
+
+**Boundary:** explanation only. Postfix stays as-is; no attempt counter, no
+panel knobs for queue lifetime, no schema change. Domain administrators see
+the intervals on `/deliveries/{id}` (they cannot open Mail queue).
+
+**Done when:** see the criteria in
+[plans/queue-retries.md](plans/queue-retries.md).
+
+**Dependencies / risks:** `postconf` unavailable outside the container
+(fallback + muted note). Copy must stay time-based — Postfix has no max
+attempt count.
+**Version:** patch.
+
+---
+
 ## inbound-relay
 
 **Goal:** optional acceptance of mail on port 25 for explicitly configured
@@ -58,30 +88,46 @@ engine stays outside the image, only the attachment point is provided.
 
 **Dependencies / risks:** a finished outbound path; open relay and backscatter;
 a wider attack surface (port 25 accepting mail).
-**Order:** recommended after [domain-admin](plans/domain-admin.md).
 **Version:** target bump `1.x`; `2.x` possible — to be settled once the
 implementation lands.
 
 ---
 
-## domain-admin
+## send-log-retention
 
-**Goal:** a role with access to one or several assigned domains (the list is
-set by the global administrator) — applications, DKIM/DNS, and the send log for
-each of them; without global operations (adding domains, full backup, the
-queue, `mail.log`).
+**Goal:** global administrator sets how many days of delivery journal rows
+(`send_log`, `/deliveries`) are kept, from `/settings` — stored in SQLite
+`settings`, with `SEND_LOG_RETENTION_DAYS` as bootstrap default only.
 
-**Boundary:** an extension of v1.0 — [product.md](product.md) fixes a single
-administrator. Not a second all-powerful admin, but limited access to the
-assigned domains (one or several).
+**Boundary:** instance-wide retention; not per-domain. Does not change
+`mail.log` rotation. Today retention is env-only (default 90 days); the panel
+has no control.
 
-**Done when:** see [plans/domain-admin.md](plans/domain-admin.md).
+**Done when:** see [plans/send-log-retention.md](plans/send-log-retention.md).
 
-**Dependencies / risks:** a users table, the role in the session, authorisation
-in every handler, setup and backup. **Order:** recommended **before**
-[inbound-relay](plans/inbound-relay.md).
-**Version:** `1.x` MINOR, given a compatible migration of the current
-administrator into a global one.
+**Dependencies / risks:** log-tailer must re-read settings each prune cycle;
+delivery UI must stop hardcoding «ninety days».
+**Version:** `1.x` MINOR; `candidate` until explicitly agreed.
+
+---
+
+## domain-stats-auto-ratelimit
+
+**Goal:** 30-day sending statistics per domain and application (total, peak and
+average msg/h) on the domain page, plus optional **auto** level-2 rate limits
+computed as `ceil(avg_hourly × multiplier)` over the level-1 window.
+
+**Boundary:** extension of v1.0 manual L2 limits; does not change Postfix
+level 1. Stats exclude level-1 refusals (not in send log). Auto with zero
+traffic stays inactive.
+
+**Done when:** see
+[plans/domain-stats-auto-ratelimit.md](plans/domain-stats-auto-ratelimit.md).
+
+**Dependencies / risks:** send log data and preferably
+[send-log-retention](#send-log-retention) ≥ 30 days; aggregate query cost on
+large logs; rate-limit path needs security review.
+**Version:** `1.x` MINOR; `candidate` until explicitly agreed.
 
 ---
 
@@ -103,30 +149,6 @@ priority.
 
 ---
 
-## visual-style
-
-**Goal:** refresh the control panel's visual design — typography, colour tokens,
-spacing, and component styling — without changing operator workflows or panel
-behaviour.
-
-**Boundary:** presentation only (`panel.css`, templates, static assets); no new
-features. Styling must stay compatible with the panel CSP — rules live in
-`panel.css`, not inline (see [security.md](security.md) and the stylesheet
-header).
-
-**Done when:** see [plans/visual-style.md](plans/visual-style.md). The agreed
-direction is the mark's own — brick, warm paper, IBM Plex — taken from
-[assets/selfpost-proof.html](assets/selfpost-proof.html); light and dark schemes
-remain supported; readability and contrast are preserved.
-
-**Dependencies / risks:** CSP constraints on how styles are applied (rules in
-`panel.css`, never inline); visual regression across pages; the accent colour
-must not read as a status badge.
-**Order:** independent of the feature items; may be taken up between them.
-**Version:** no bearing on semver.
-
----
-
 ## dmarc-reports
 
 **Goal:** SelfPost receives DMARC aggregate reports (RFC 7489) on SMTP,
@@ -142,12 +164,74 @@ reports (`ruf=`) out of scope for v1.
 
 **Dependencies / risks:** inbound SMTP in the image (may share infrastructure
 with [inbound-relay](plans/inbound-relay.md) but must not require backup-MX);
-storage and retention of parsed summaries; the `admin.dmarc_report_email` and
-`domains.dmarc_rua` settings added in the DMARC template work must stay the
-source of truth for `rua=` in DNS guidance.
+storage and retention of parsed summaries; the `dmarc_report_email` setting
+(migration `0005` moved it off the old `admin` table into `settings`) and
+`domains.dmarc_rua` added in the DMARC template work must stay the source of
+truth for `rua=` in DNS guidance.
 
 **Order:** after the DMARC `rua=` settings ship; may follow or overlap with
 inbound-relay depending on how port 25 acceptance is structured.
 
 **Version:** `1.x` MINOR.
 
+---
+
+## panel-docs
+
+**Goal:** built-in operator documentation in the panel — short pages (or a
+help drawer) that explain what each Status check and other controls mean,
+without sending the operator out to `docs/guide.md`.
+
+**Boundary:** in-panel help only; not a second copy of the full operator guide.
+Seed content includes the Status blurbs removed from the cards in favour of a
+denser layout — Machine (kernel counters / rate window), TLS certificate
+(port 465, reverse-proxy mount), Hostname / reverse DNS (forward-confirmed
+reverse DNS, PTR at the hosting provider), and similar notes for other panel
+surfaces as they lose inline commentary.
+
+**Done when:** an operator can open help from the panel for those topics; the
+removed Status blurbs are preserved there (or equivalent); no requirement to
+read the git tree for day-to-day meaning of a card.
+
+**Dependencies / risks:** copy ownership and translation; keeping help in sync
+when checks change; not bloating every page with a second column of prose.
+
+**Version:** `1.x` MINOR; `candidate` until explicitly agreed.
+
+---
+
+## schema-squash
+
+**Goal:** when 2.x is cut, stop shipping the 1.x migration files
+(`0001_init.sql` … `0005_panel_users.sql`) in the binary and replace them with
+one baseline that is the schema as of `user_version = 5`. Fresh 2.x data
+directories no longer create-then-drop the historical `admin` table.
+
+**Boundary:** 1.x keeps the full chain so a 1.0.0 data directory still boots.
+Do not delete, rename, or reorder those files while MINOR compatibility with
+`1.0.0` holds. `migrate()` maps **file order** to `PRAGMA user_version` (`target
+= i + 1`); dropping a file in 1.x would skip or mis-apply steps on existing
+databases. Git history keeps the old files either way; only the embedded set
+in the 2.x image changes.
+
+**Upgrade gate (required with the squash):**
+
+| `user_version` | 2.x behaviour |
+|---|---|
+| `0` (empty file) | Apply the baseline; set `user_version` to the new chain’s head |
+| `>= 5` (fully migrated 1.x) | Skip; schema is already the baseline |
+| `1`…`4` (mid-chain 1.x) | **Refuse to start** — boot the last 1.x once, then 2.x |
+
+Restore remains a separate lock: the backup manifest version must match the
+running binary ([architecture.md](architecture.md) § Persistence). It does not
+replace this gate.
+
+**Done when:** 2.x embeds a single baseline (plus any 2.x-only migrations after
+it); the gate above is tested; the operator guide says a 2.x image will not
+open an unfinished 1.x database.
+
+**Dependencies / risks:** a decided 2.x cut (another breaking change, or an
+explicit major). Squashing five short files is not a reason to cut 2.x on its
+own. A missed gate leaves a `user_version = 3` database silently stuck.
+**Version:** `2.x` major only; not a 1.x item.
+

docs/security.md

@@ -5,7 +5,12 @@ meet; the full v1.0 audit passed. The pre-release review (plan § D, 2026-08-06)
 covered the whole diff from the v1.0 audit (Phase 11) to HEAD and the checklist
 in full: no exploitable findings; one defence-in-depth change — `--` before the
 login in the `saslpasswd2` argv
-([internal/app/sasl.go](../internal/app/sasl.go)). (2) **Accepted risks** —
+([internal/app/sasl.go](../internal/app/sasl.go)). The 2026-08-14 review
+(code-review plan § P7, Fable; reviewer ≠ author) covered the P0–P1 diff of the
+2026-08-13 full-tree review against this document — send-log authorization for
+domain administrators, the atomic level-2 admit (`tryAdmit`), fail-closed
+session creation, and application-delete ordering: no findings, and nothing
+needed adding to the accepted risks. (2) **Accepted risks** —
 deliberate departures beyond the mandatory, recorded so the decision is not
 lost.
 
@@ -34,8 +39,8 @@ The panel is exposed to the internet — the items below are **not optional**.
 - Failed attempts do **not** invalidate the token early (protects setup from
   being DoS-ed).
 - Once the administrator exists the token is void forever, `/setup/*` → 404.
-- The administrator password is bcrypt (or argon2) in SQLite only; no plaintext
-  and no MD5.
+- The administrator password is bcrypt in SQLite only; no plaintext and no
+  MD5.
 - `PANEL_USERNAME` / `PANEL_PASSWORD_HASH` in env are **not used**.
 
 ### Application SASL passwords
@@ -81,10 +86,11 @@ The panel is exposed to the internet — the items below are **not optional**.
 
 ### Backup and domain export
 
-- Both files are secrets: a full backup carries DKIM keys, `sasldb2`, and the
-  administrator's password hash; a domain export carries the DKIM key and
-  **working** application passwords in the clear (otherwise a transfer without
-  recreating credentials would be impossible).
+- Both files are secrets: a full backup carries DKIM keys, `sasldb2`, the
+  administrator's password hash, `docker-compose.yml`, `.env`, and the TLS
+  private key from `certs/` when present; a domain export carries the DKIM key
+  and **working** application passwords in the clear (otherwise a transfer
+  without recreating credentials would be impossible).
 - Both downloads can be encrypted with a password (a checkbox on the form):
   scrypt (N=2¹⁵, r=8, p=1) → AES-256-GCM, streamed in 64 KiB chunks, each
   authenticated with the header, the chunk number, and an end-of-stream flag —
@@ -112,19 +118,34 @@ deferred item from the roadmap.
 - **A `POST` with neither `Sec-Fetch-Site` nor `Origin` is allowed through.**
   A client that sends neither — a genuinely old browser, or a webview with a
   frozen engine — stays vulnerable to CSRF from any site. Accepted
-  deliberately: the panel is single-user, the administrator picks the browser,
-  and a strict mode would not "protect" such a client, it would simply break the
-  panel in it. Tightening is one line in `originAllowed`
+  deliberately: every panel user (global or domain-admin) is an operator who
+  picks their own browser, not an untrusted party the panel needs to defend
+  against, and a strict mode would not "protect" such a client, it would
+  simply break the panel in it. Tightening is one line in `originAllowed`
   ([internal/web/security.go](../internal/web/security.go)): return `false`
   instead of `true` in the "neither header present" branch.
 - **Session-bound CSRF tokens are not implemented.** The origin check closes the
   neighbouring-subdomain case but depends on browser behaviour; a token does
   not. The price is a hidden field in roughly two dozen forms. The trigger to
-  revisit is a requirement for protection that holds regardless of the browser.
-  A token would not save the panel from XSS inside it either: code executing in
-  the panel's origin sends the request itself — against that, `html/template`
-  auto-escaping and CSP do the work, which is why templates must contain no
-  inline scripts and no inline styles.
+  revisit is a requirement for protection that holds regardless of the browser,
+  or a domain-admin population the global administrator does not fully trust
+  (see the ADR below). A token would not save the panel from XSS inside it
+  either: code executing in the panel's origin sends the request itself —
+  against that, `html/template` auto-escaping and CSP do the work, which is why
+  templates must contain no inline scripts and no inline styles.
+- **Destructive-action confirmation (`data-confirm`) is JavaScript-only.**
+  Delete, regenerate-password, and clear-rate-limit forms carry a
+  `data-confirm` prompt handled entirely in
+  [panel.js](../internal/web/view/static/panel.js); with JavaScript disabled
+  or blocked the form submits immediately, exactly as it did before the
+  prompts existed. Accepted deliberately: the prompt is a mis-click guard,
+  not an authorization boundary — the same origin check and session/RBAC
+  gate every one of these `POST`s whether or not JavaScript ran. Progressive
+  enhancement means the panel must work with JavaScript off; a
+  server-rendered confirmation step would need a second page (or a `?confirm=1`
+  round trip) for every one of these forms, which is what
+  [`user_delete.html`](../internal/web/view/templates/user_delete.html) and
+  `domain_delete.html` already do for the two highest-blast-radius deletes.
 - **Encrypting backups and exports is an option, not the default.** With the
   checkbox cleared the file downloads in the clear, as in 1.0. Otherwise an
   operator with nowhere to keep a password would lose the ability to take a
@@ -158,24 +179,35 @@ deferred item from the roadmap.
 
 **Context.** The panel is forms (`POST`) with a cookie session — the classic
 CSRF surface. What is needed is a way to tell a request from the panel's own
-page apart from one initiated by a third-party site in the logged-in
-administrator's browser.
+page apart from one initiated by a third-party site in a logged-in user's
+browser. The panel is multi-user since 1.2.0 (a global administrator plus
+zero or more domain-admin users, each scoped to their assigned domains), but
+that is an authorization boundary (who can see or change what), not a change
+to the CSRF threat: the attacker in scope here is still an external site
+riding a legitimate user's cookie, not one panel user attacking another
+through the browser.
 
 **Decision.** `originAllowed` in
 [internal/web/security.go](../internal/web/security.go) checks `Sec-Fetch-Site`
 (when the browser sends it) or `Origin` (fallback) against the panel's host; a
 request carrying neither header is **allowed through** rather than rejected.
-There are no session-bound tokens embedded in forms.
+There are no session-bound tokens embedded in forms. The check applies the same
+way regardless of the requesting user's role.
 
-**Why not tokens.** The panel is single-user (one administrator per instance) —
-the threat model does not include cross-user CSRF inside the panel itself, only
-an external site making the administrator's browser send a request. The origin
-check covers that without touching a single template: a token would need a
-hidden field in roughly two dozen forms and synchronisation with every new form,
-and it would still not protect against XSS inside the panel — code executing in
-the panel's origin reads the token and sends the request itself. XSS is handled
-by `html/template` auto-escaping and CSP, so that is a separate line of defence,
-not a CSRF token.
+**Why not tokens.** Cross-user CSRF is not the threat model here: a
+domain-admin's browser sending a request still needs that domain-admin's own
+cookie, so a token would not add a boundary between roles that the
+authorization checks (`Principal.CanAccessDomain`,
+[internal/web/auth/principal.go](../internal/web/auth/principal.go); route
+gating in [internal/web/handlers/authz.go](../internal/web/handlers/authz.go))
+don't already enforce. The remaining case is an external site making a
+logged-in user's browser send a request, which the origin check covers without
+touching a single template.
+A token would need a hidden field in roughly two dozen forms and
+synchronisation with every new form, and it would still not protect against
+XSS inside the panel — code executing in the panel's origin reads the token
+and sends the request itself. XSS is handled by `html/template` auto-escaping
+and CSP, so that is a separate line of defence, not a CSRF token.
 
 **Trade-off.** A client that sends neither `Sec-Fetch-Site` nor `Origin` (a
 genuinely old browser, or a webview with a frozen engine) stays vulnerable — see
@@ -183,7 +215,11 @@ genuinely old browser, or a webview with a frozen engine) stays vulnerable — s
 such a client, at the price of a narrow residual surface.
 
 **Revisit if:** a requirement appears for protection that does not depend on
-browser behaviour, or the panel becomes multi-user.
+browser behaviour, or domain-admin accounts stop being trusted operators (for
+example, if a future release lets a global administrator invite domain-admins
+whose browsers/devices are not vetted) — at that point cross-role request
+forgery inside the panel would need its own analysis, separate from the
+external-site case this ADR covers.
 
 ## How this list grows
 

internal/app/service.go

@@ -166,14 +166,24 @@ func (s *Service) RegeneratePassword(id int64) (string, error) {
 // Delete removes an application: its SASL account, its registry row (and address
 // rows via cascade) and its sender-map bindings, then reloads Postfix (spec
 // 7.2.8). The domain and other applications are untouched.
+//
+// The order matches domain deletion: the SASL account goes first, while the
+// login is still in the registry. Dropping the row first would, on a
+// saslpasswd2 failure, leave an account that can still authenticate to Postfix
+// but that the panel no longer knows about — an orphan no operator can see or
+// remove. Failing before the row is deleted is recoverable: the application is
+// still listed and the delete can be retried.
 func (s *Service) Delete(id int64) error {
-	a, err := s.store.DeleteApplication(id)
+	a, err := s.store.GetApplication(id)
 	if err != nil {
 		return err
 	}
 	if err := s.sasl.Delete(a.Login); err != nil {
 		return err
 	}
+	if _, err := s.store.DeleteApplication(id); err != nil {
+		return err
+	}
 	// Drop the application's level-2 limit, if any (guide § Rate limiting);
 	// rate_limits has no cascade of its own.
 	if err := s.store.DeleteRateLimit(store.RateLimitScopeApp, id); err != nil {
@@ -189,9 +199,9 @@ func (s *Service) RateLimit(appID int64) (store.RateLimit, bool, error) {
 	return s.store.GetRateLimit(store.RateLimitScopeApp, appID)
 }
 
-// SaveRateLimit stores the application-level rate limit. The caller has validated
-// the IPs and numbers (security.md); the milter reads the row live, so no reload
-// is needed.
+// SaveRateLimit stores the application-level trusted-IP override (guide § Rate
+// limiting). The caller has validated the IPs and numbers (security.md); the
+// milter reads the row live, so no reload is needed.
 func (s *Service) SaveRateLimit(appID int64, ips []string, maxMessages, windowSeconds int) error {
 	return s.store.SetRateLimit(store.RateLimit{
 		Scope:         store.RateLimitScopeApp,

internal/app/service_test.go

@@ -181,6 +181,37 @@ func TestServiceDelete(t *testing.T) {
 	}
 }
 
+// If sasldb2 cannot be updated the application must stay in the registry: an
+// account that still authenticates but has no panel row is invisible to the
+// operator and cannot be deleted again.
+func TestServiceDeleteKeepsRowWhenSASLFails(t *testing.T) {
+	svc, st, rec, _ := newServiceHarness(t)
+	d := addDomain(t, st, "example.com")
+	a, _, err := svc.Create(d.ID, "app1", store.AddressModeWildcard, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rec.failNext = true // saslpasswd2 -d fails
+	if err := svc.Delete(a.ID); err == nil {
+		t.Fatal("Delete reported success although the SASL account was not removed")
+	}
+	apps, _ := st.ListApplicationsByDomain(d.ID)
+	if len(apps) != 1 {
+		t.Fatalf("registry row dropped while the SASL account can still authenticate: %+v", apps)
+	}
+	if _, ok := rec.set["app1"]; !ok {
+		t.Fatal("SASL account gone despite the failure — the harness no longer proves the ordering")
+	}
+	// The delete is retryable now that the row is still there.
+	if err := svc.Delete(a.ID); err != nil {
+		t.Fatalf("retried Delete: %v", err)
+	}
+	if _, ok := rec.set["app1"]; ok {
+		t.Error("SASL account not deleted on retry")
+	}
+}
+
 func TestServiceUpdateMode(t *testing.T) {
 	svc, st, _, maps := newServiceHarness(t)
 	d := addDomain(t, st, "example.com")

internal/backup/backup.go

@@ -1,18 +1,26 @@
 // Package backup implements SelfPost's full-server backup and the restore
 // version guard (architecture.md § Persistence). A full backup is a
 // gzip-compressed tar of the consolidated persistent state under /data — the
-// SQLite database (as a consistent snapshot), the per-domain DKIM keys and the
-// SASL database — plus a manifest recording the SelfPost version that produced
-// it. TLS certificates (the reverse proxy's responsibility) and the Postfix
-// queue are deliberately excluded (architecture.md § Persistence).
+// SQLite database (as a consistent snapshot), the per-domain DKIM keys, the
+// SASL database, and the Postfix queue — plus docker-compose.yml, .env, and
+// certs/ from the operator's deploy directory, and a manifest recording the
+// SelfPost version that produced it. Postfix delivery logs under log/ are
+// excluded (diagnostics, not state).
 //
-// Restore is intentionally not a separate code path: a backup is extracted
-// into the /data bind mount before first start, and the panel regenerates
-// Postfix and OpenDKIM from the restored SQLite state exactly as on any normal
-// start. The only restore-specific step is CheckRestore, which refuses to boot
-// if the manifest's version does not match the running binary, so
+// Restore is not a separate code path in the panel: a backup is extracted into
+// the operator's project directory (data/, docker-compose.yml, .env, certs/)
+// before first start. The archive carries everything needed to bring the
+// instance back — DKIM keys, sasldb2, sender map, queue, and deploy files —
+// so the operator only adjusts hostname or proxy settings on a new host. The
+// restore-specific steps the panel runs are CheckRestore, which refuses to
+// boot if the manifest's version does not match the running binary so
 // schema/format skew between versions cannot silently corrupt state
-// (architecture.md § Persistence).
+// (architecture.md § Persistence), and a one-time Resync of OpenDKIM's tables
+// and the Postfix sender map from SQLite on that first boot, so any drift
+// between the archive and the database is healed before mail flows. If
+// on-disk state drifts again later — for example after a manual edit under
+// /data — the Status page's "Reload configuration" button runs the same
+// Resync on demand.
 package backup
 
 import (
@@ -34,11 +42,21 @@ import (
 // FormatFull identifies a full-server backup manifest.
 const FormatFull = "selfpost-full-backup"
 
-// ManifestName is the manifest's filename, both inside the archive and, after a
-// restore extraction, at the root of the data directory where CheckRestore
-// looks for it.
+// ManifestName is the manifest's filename inside the data directory. After
+// restore extraction it lives at data/manifest.json under the project root;
+// CheckRestore reads it from the /data bind mount.
 const ManifestName = "manifest.json"
 
+// DataArchivePrefix is the path prefix for every /data entry in the archive.
+const DataArchivePrefix = "data/"
+
+// ComposeFileName and EnvFileName are required deploy files at the archive root.
+const (
+	ComposeFileName = "docker-compose.yml"
+	EnvFileName     = ".env"
+	CertsDirName    = "certs"
+)
+
 // Manifest is the small JSON document embedded in every backup archive. Its
 // Version is the single fact that makes restore safe: the panel refuses to
 // boot a data directory whose manifest version does not match its own binary
@@ -52,21 +70,23 @@ type Manifest struct {
 // Params configures a backup. DataDir is the consolidated state root (/data);
 // DBPath is the live SQLite file within it, snapshotted consistently rather than
 // copied byte-for-byte while it may be mid-write; Version is stamped into the
-// manifest.
+// manifest; DeployRoot is the host project directory mounted read-only (holds
+// docker-compose.yml, .env, and optionally certs/). OnWarn is called for
+// non-fatal issues such as a missing certs/ directory.
 type Params struct {
-	DataDir string
-	DBPath  string
-	Version string
+	DataDir    string
+	DBPath     string
+	Version    string
+	DeployRoot string
+	OnWarn     func(string)
 }
 
 // excludedFromArchive lists the data-directory entries a backup never carries.
 // The live database files are replaced by a consistent VACUUM INTO snapshot
 // written under the canonical name; the setup token is transient bootstrap
 // state; a stale manifest from a previous restore must not be re-captured (a
-// fresh one is written instead); a "tls" directory holds the reverse proxy's
-// certificates, which are explicitly out of scope for a SelfPost backup
-// (architecture.md § Persistence) — excluding it keeps that guarantee even when
-// an operator points TLS_CERT_FILE inside /data; and "log" is Postfix's raw
+// fresh one is written instead); a "tls" directory under /data is skipped when
+// an operator pointed TLS_CERT_FILE inside /data; and "log" is Postfix's raw
 // delivery log plus its fourteen rotated files, which is diagnostic output, not
 // state to restore, and by far the largest thing under /data.
 var excludedFromArchive = map[string]bool{
@@ -80,16 +100,22 @@ var excludedFromArchive = map[string]bool{
 	ManifestName:          true,
 }
 
-// Create writes a gzip-compressed tar backup to w. Archive entries are named
-// relative to DataDir, so extracting the archive into the /data bind mount
-// reconstructs the state in place (architecture.md § Persistence). The SQLite
-// database is added as a consistent snapshot under "selfpost.db"; everything
-// else under DataDir is copied as-is except the entries in
-// excludedFromArchive.
+// Create writes a gzip-compressed tar backup to w. Archive layout:
+//
+//	data/manifest.json, data/selfpost.db, data/<rest of /data>
+//	docker-compose.yml, .env, certs/...
+//
+// Extract the archive into an empty project directory, then docker compose up.
 func Create(w io.Writer, p Params) error {
 	if p.DataDir == "" || p.DBPath == "" {
 		return fmt.Errorf("backup: DataDir and DBPath are required")
 	}
+	if p.DeployRoot == "" {
+		return fmt.Errorf("backup: DeployRoot is required (mount the project directory at SELFPOST_DEPLOY_ROOT)")
+	}
+	if err := validateDeployRoot(p.DeployRoot); err != nil {
+		return err
+	}
 
 	snapshot, cleanup, err := snapshotDB(p.DBPath)
 	if err != nil {
@@ -109,17 +135,21 @@ func Create(w io.Writer, p Params) error {
 	if err != nil {
 		return fmt.Errorf("backup: encode manifest: %w", err)
 	}
-	if err := writeTarBytes(tw, ManifestName, 0o600, manifestJSON); err != nil {
+	if err := writeTarBytes(tw, DataArchivePrefix+ManifestName, 0o600, manifestJSON); err != nil {
 		return err
 	}
 
 	// The consistent SQLite snapshot, under the canonical filename the panel
 	// opens on start (the live file and its WAL/SHM are excluded from the walk).
-	if err := writeTarFile(tw, "selfpost.db", 0o640, snapshot); err != nil {
+	if err := writeTarFile(tw, DataArchivePrefix+"selfpost.db", 0o640, snapshot); err != nil {
 		return err
 	}
 
-	if err := addTree(tw, p.DataDir); err != nil {
+	if err := addTree(tw, p.DataDir, DataArchivePrefix, excludedFromArchive); err != nil {
+		return err
+	}
+
+	if err := addDeployFiles(tw, p.DeployRoot, p.OnWarn); err != nil {
 		return err
 	}
 
@@ -132,33 +162,79 @@ func Create(w io.Writer, p Params) error {
 	return nil
 }
 
-// addTree walks dataDir and adds every regular file (and directory, to preserve
-// empty ones and modes) to tw under its path relative to dataDir, skipping the
-// excluded entries. Non-regular, non-directory entries (symlinks, sockets) are
-// skipped: /data holds none in normal operation, and copying them into a backup
-// would be meaningless or unsafe.
-func addTree(tw *tar.Writer, dataDir string) error {
-	return filepath.WalkDir(dataDir, func(path string, d fs.DirEntry, err error) error {
+// ValidateDeployRoot checks that the operator project directory is mounted and
+// contains the files a full backup requires. Call before streaming a response.
+func ValidateDeployRoot(deployRoot string) error {
+	if deployRoot == "" {
+		return fmt.Errorf("backup: DeployRoot is required (mount the project directory at SELFPOST_DEPLOY_ROOT)")
+	}
+	return validateDeployRoot(deployRoot)
+}
+
+func validateDeployRoot(deployRoot string) error {
+	for _, name := range []string{ComposeFileName, EnvFileName} {
+		path := filepath.Join(deployRoot, name)
+		if _, err := os.Stat(path); err != nil {
+			return fmt.Errorf("backup: deploy root %q is missing %s: %w", deployRoot, name, err)
+		}
+	}
+	return nil
+}
+
+func addDeployFiles(tw *tar.Writer, deployRoot string, onWarn func(string)) error {
+	for _, name := range []string{ComposeFileName, EnvFileName} {
+		src := filepath.Join(deployRoot, name)
+		info, err := os.Stat(src)
+		if err != nil {
+			return fmt.Errorf("backup: stat deploy file %s: %w", name, err)
+		}
+		if !info.Mode().IsRegular() {
+			return fmt.Errorf("backup: deploy file %s is not a regular file", name)
+		}
+		if err := writeTarFile(tw, name, info.Mode().Perm(), src); err != nil {
+			return err
+		}
+	}
+
+	certsDir := filepath.Join(deployRoot, CertsDirName)
+	if _, err := os.Stat(certsDir); err != nil {
+		if os.IsNotExist(err) {
+			if onWarn != nil {
+				onWarn("certs/ not found in deploy root; backup will not include TLS material")
+			}
+			return nil
+		}
+		return fmt.Errorf("backup: stat %s: %w", CertsDirName, err)
+	}
+	return addTree(tw, certsDir, CertsDirName+"/", nil)
+}
+
+// addTree walks root and adds every regular file (and directory, to preserve
+// empty ones and modes) to tw under archivePrefix + path relative to root.
+// When exclude is non-nil, top-level names relative to root are skipped.
+// Non-regular, non-directory entries (symlinks, sockets) are skipped.
+func addTree(tw *tar.Writer, root, archivePrefix string, exclude map[string]bool) error {
+	return filepath.WalkDir(root, func(path string, d fs.DirEntry, err error) error {
 		if err != nil {
 			return err
 		}
-		rel, err := filepath.Rel(dataDir, path)
+		rel, err := filepath.Rel(root, path)
 		if err != nil {
 			return err
 		}
 		if rel == "." {
-			return nil // the data root itself is implicit
-		}
-		// filepath.Rel yields OS separators; tar names use forward slashes.
-		name := filepath.ToSlash(rel)
-		// Exclude by top-level name (the live DB, setup token and stale manifest
-		// all live at the data root).
-		if excludedFromArchive[name] {
-			if d.IsDir() {
-				return fs.SkipDir
-			}
 			return nil
 		}
+		name := archivePrefix + filepath.ToSlash(rel)
+		if exclude != nil {
+			top := strings.Split(filepath.ToSlash(rel), "/")[0]
+			if exclude[top] {
+				if d.IsDir() {
+					return fs.SkipDir
+				}
+				return nil
+			}
+		}
 
 		info, err := d.Info()
 		if err != nil {
@@ -176,7 +252,7 @@ func addTree(tw *tar.Writer, dataDir string) error {
 		case info.Mode().IsRegular():
 			return writeTarFile(tw, name, info.Mode().Perm(), path)
 		default:
-			return nil // skip symlinks/sockets/devices
+			return nil
 		}
 	})
 }
@@ -264,33 +340,34 @@ func snapshotDB(dbPath string) (path string, cleanup func(), err error) {
 // directory), its version must match binaryVersion or the panel refuses to
 // start, telling the operator which image tag to use. On a match the manifest
 // is consumed (deleted) so it guards only the first boot after a restore and
-// never blocks a later in-place image upgrade. Absence of the manifest is the
-// normal case and returns nil.
-func CheckRestore(manifestPath, binaryVersion string) error {
+// never blocks a later in-place image upgrade, and restored is true so the
+// caller can heal drifted daemon maps once. Absence of the manifest is the
+// normal case and returns restored == false with a nil error.
+func CheckRestore(manifestPath, binaryVersion string) (restored bool, err error) {
 	data, err := os.ReadFile(manifestPath)
 	if os.IsNotExist(err) {
-		return nil // ordinary start, not a restore
+		return false, nil // ordinary start, not a restore
 	}
 	if err != nil {
-		return fmt.Errorf("backup: read restore manifest: %w", err)
+		return false, fmt.Errorf("backup: read restore manifest: %w", err)
 	}
 
 	var m Manifest
 	if err := json.Unmarshal(data, &m); err != nil {
-		return fmt.Errorf("backup: restore manifest %s is not valid JSON: %w", manifestPath, err)
+		return false, fmt.Errorf("backup: restore manifest %s is not valid JSON: %w", manifestPath, err)
 	}
 	if m.Format != FormatFull {
-		return fmt.Errorf("backup: %s is not a SelfPost full backup manifest (format %q)", manifestPath, m.Format)
+		return false, fmt.Errorf("backup: %s is not a SelfPost full backup manifest (format %q)", manifestPath, m.Format)
 	}
 	if m.Version != binaryVersion {
-		return fmt.Errorf(
+		return false, fmt.Errorf(
 			"backup: this backup was created by SelfPost %s but this image is %s — restore into the matching image (selfpost:%s)",
 			m.Version, binaryVersion, m.Version)
 	}
 	// Version matches: consume the manifest so subsequent normal starts (and
 	// in-place upgrades) are not gated by it.
 	if err := os.Remove(manifestPath); err != nil {
-		return fmt.Errorf("backup: consume restore manifest: %w", err)
+		return false, fmt.Errorf("backup: consume restore manifest: %w", err)
 	}
-	return nil
+	return true, nil
 }

internal/backup/backup_test.go

@@ -15,10 +15,15 @@ import (
 )
 
 // seedDataDir builds a realistic /data tree: a migrated SQLite database plus the
-// DKIM key, SASL and transient files a backup must include or exclude.
-func seedDataDir(t *testing.T) (dataDir, dbPath string) {
+// DKIM key, SASL and transient files a backup must include or exclude. It also
+// seeds a deploy root beside data/ with compose, .env, and certs/.
+func seedDataDir(t *testing.T) (dataDir, dbPath, deployRoot string) {
 	t.Helper()
-	dataDir = t.TempDir()
+	deployRoot = t.TempDir()
+	dataDir = filepath.Join(deployRoot, "data")
+	if err := os.MkdirAll(dataDir, 0o750); err != nil {
+		t.Fatalf("mkdir data: %v", err)
+	}
 	dbPath = filepath.Join(dataDir, "selfpost.db")
 
 	st, err := store.Open(dbPath)
@@ -35,6 +40,7 @@ func seedDataDir(t *testing.T) (dataDir, dbPath string) {
 	writeFile(t, filepath.Join(dataDir, "opendkim", "keys", "example.com", "selfpost.private"), "PRIVATE KEY")
 	writeFile(t, filepath.Join(dataDir, "sasl", "sasldb2"), "SASLDB")
 	writeFile(t, filepath.Join(dataDir, "postfix", "sender_login_maps"), "@example.com login")
+	writeFile(t, filepath.Join(dataDir, "postfix", "queue", "deferred", "sample"), "queue-file")
 	// Transient files that must NOT be archived.
 	writeFile(t, filepath.Join(dataDir, "setup-token"), "secret-token")
 	writeFile(t, filepath.Join(dataDir, "selfpost.db-wal"), "wal")
@@ -43,7 +49,11 @@ func seedDataDir(t *testing.T) (dataDir, dbPath string) {
 	// state, and the bulkiest thing under /data.
 	writeFile(t, filepath.Join(dataDir, "log", "mail.log"), "Aug  8 07:26:41 mail postfix/smtp[1]: ABC: to=<a@example.net>, status=sent (ok)")
 	writeFile(t, filepath.Join(dataDir, "log", "mail.log.1"), "older")
-	return dataDir, dbPath
+	writeFile(t, filepath.Join(deployRoot, ComposeFileName), "services:\n  selfpost:\n    image: test\n")
+	writeFile(t, filepath.Join(deployRoot, EnvFileName), "SELFPOST_HOSTNAME=mail.example.com\n")
+	writeFile(t, filepath.Join(deployRoot, CertsDirName, "fullchain.pem"), "CERT")
+	writeFile(t, filepath.Join(deployRoot, CertsDirName, "privkey.pem"), "KEY")
+	return dataDir, dbPath, deployRoot
 }
 
 func writeFile(t *testing.T, path, content string) {
@@ -87,21 +97,26 @@ func readArchive(t *testing.T, data []byte) map[string]string {
 }
 
 func TestCreateIncludesStateExcludesTransient(t *testing.T) {
-	dataDir, dbPath := seedDataDir(t)
+	dataDir, dbPath, deployRoot := seedDataDir(t)
 
 	var buf bytes.Buffer
-	if err := Create(&buf, Params{DataDir: dataDir, DBPath: dbPath, Version: "1.2.3"}); err != nil {
+	if err := Create(&buf, Params{DataDir: dataDir, DBPath: dbPath, Version: "1.2.3", DeployRoot: deployRoot}); err != nil {
 		t.Fatalf("Create: %v", err)
 	}
 	files := readArchive(t, buf.Bytes())
 
 	// Present.
 	for _, name := range []string{
-		ManifestName,
-		"selfpost.db",
-		"opendkim/keys/example.com/selfpost.private",
-		"sasl/sasldb2",
-		"postfix/sender_login_maps",
+		DataArchivePrefix + ManifestName,
+		DataArchivePrefix + "selfpost.db",
+		DataArchivePrefix + "opendkim/keys/example.com/selfpost.private",
+		DataArchivePrefix + "sasl/sasldb2",
+		DataArchivePrefix + "postfix/sender_login_maps",
+		DataArchivePrefix + "postfix/queue/deferred/sample",
+		ComposeFileName,
+		EnvFileName,
+		CertsDirName + "/fullchain.pem",
+		CertsDirName + "/privkey.pem",
 	} {
 		if _, ok := files[name]; !ok {
 			t.Errorf("archive missing %s", name)
@@ -109,8 +124,11 @@ func TestCreateIncludesStateExcludesTransient(t *testing.T) {
 	}
 	// Excluded.
 	for _, name := range []string{
-		"setup-token", "selfpost.db-wal", "selfpost.db-shm",
-		"log/mail.log", "log/mail.log.1",
+		DataArchivePrefix + "setup-token",
+		DataArchivePrefix + "selfpost.db-wal",
+		DataArchivePrefix + "selfpost.db-shm",
+		DataArchivePrefix + "log/mail.log",
+		DataArchivePrefix + "log/mail.log.1",
 	} {
 		if _, ok := files[name]; ok {
 			t.Errorf("archive should not contain %s", name)
@@ -119,7 +137,7 @@ func TestCreateIncludesStateExcludesTransient(t *testing.T) {
 
 	// Manifest is well-formed and carries the version.
 	var m Manifest
-	if err := json.Unmarshal([]byte(files[ManifestName]), &m); err != nil {
+	if err := json.Unmarshal([]byte(files[DataArchivePrefix+ManifestName]), &m); err != nil {
 		t.Fatalf("manifest json: %v", err)
 	}
 	if m.Format != FormatFull || m.Version != "1.2.3" {
@@ -128,7 +146,7 @@ func TestCreateIncludesStateExcludesTransient(t *testing.T) {
 
 	// The archived selfpost.db is a real, openable SQLite snapshot with our data.
 	snapPath := filepath.Join(t.TempDir(), "restored.db")
-	if err := os.WriteFile(snapPath, []byte(files["selfpost.db"]), 0o640); err != nil {
+	if err := os.WriteFile(snapPath, []byte(files[DataArchivePrefix+"selfpost.db"]), 0o640); err != nil {
 		t.Fatalf("write snapshot: %v", err)
 	}
 	st, err := store.Open(snapPath)
@@ -145,6 +163,14 @@ func TestCreateIncludesStateExcludesTransient(t *testing.T) {
 	}
 }
 
+func TestCreateRequiresDeployRoot(t *testing.T) {
+	dataDir, dbPath, _ := seedDataDir(t)
+	var buf bytes.Buffer
+	if err := Create(&buf, Params{DataDir: dataDir, DBPath: dbPath, Version: "1.0.0"}); err == nil {
+		t.Fatal("Create without DeployRoot succeeded")
+	}
+}
+
 func writeManifest(t *testing.T, dir, format, version string) string {
 	t.Helper()
 	path := filepath.Join(dir, ManifestName)
@@ -156,17 +182,25 @@ func writeManifest(t *testing.T, dir, format, version string) string {
 }
 
 func TestCheckRestoreNoManifestIsNormalStart(t *testing.T) {
-	if err := CheckRestore(filepath.Join(t.TempDir(), "manifest.json"), "1.0.0"); err != nil {
+	restored, err := CheckRestore(filepath.Join(t.TempDir(), "manifest.json"), "1.0.0")
+	if err != nil {
 		t.Errorf("CheckRestore with no manifest = %v, want nil", err)
 	}
+	if restored {
+		t.Error("CheckRestore with no manifest reported a restore")
+	}
 }
 
 func TestCheckRestoreMatchConsumesManifest(t *testing.T) {
 	dir := t.TempDir()
 	path := writeManifest(t, dir, FormatFull, "1.0.0")
-	if err := CheckRestore(path, "1.0.0"); err != nil {
+	restored, err := CheckRestore(path, "1.0.0")
+	if err != nil {
 		t.Fatalf("CheckRestore matching = %v, want nil", err)
 	}
+	if !restored {
+		t.Fatal("CheckRestore matching did not report a restore")
+	}
 	if _, err := os.Stat(path); !os.IsNotExist(err) {
 		t.Errorf("manifest should be consumed after a matching restore, stat err = %v", err)
 	}
@@ -175,10 +209,13 @@ func TestCheckRestoreMatchConsumesManifest(t *testing.T) {
 func TestCheckRestoreVersionMismatchRefusesAndKeeps(t *testing.T) {
 	dir := t.TempDir()
 	path := writeManifest(t, dir, FormatFull, "1.0.0")
-	err := CheckRestore(path, "2.0.0")
+	restored, err := CheckRestore(path, "2.0.0")
 	if err == nil {
 		t.Fatal("CheckRestore mismatch = nil, want error")
 	}
+	if restored {
+		t.Error("CheckRestore mismatch reported a restore")
+	}
 	if !strings.Contains(err.Error(), "1.0.0") || !strings.Contains(err.Error(), "2.0.0") {
 		t.Errorf("error should name both versions: %v", err)
 	}
@@ -190,7 +227,11 @@ func TestCheckRestoreVersionMismatchRefusesAndKeeps(t *testing.T) {
 func TestCheckRestoreWrongFormatRejected(t *testing.T) {
 	dir := t.TempDir()
 	path := writeManifest(t, dir, "something-else", "1.0.0")
-	if err := CheckRestore(path, "1.0.0"); err == nil {
+	restored, err := CheckRestore(path, "1.0.0")
+	if err == nil {
 		t.Error("CheckRestore accepted a non-backup manifest")
 	}
+	if restored {
+		t.Error("CheckRestore wrong format reported a restore")
+	}
 }

internal/dnscheck/dnscheck.go

@@ -70,12 +70,12 @@ type Domain struct {
 // compares DNS against the key this server actually signs with. Hostname and
 // ServerIPs identify this server and come from a preceding Server check.
 type Query struct {
-	Name              string
-	Selector          string
-	ExpectedDKIM      string
-	Hostname          string
-	ServerIPs         []string
-	DMARCReportEmail  string // resolved rua= destination; empty = policy-only template
+	Name             string
+	Selector         string
+	ExpectedDKIM     string
+	Hostname         string
+	ServerIPs        []string
+	DMARCReportEmail string // resolved rua= destination; empty = policy-only template
 }
 
 // resolver is the slice of *net.Resolver this package uses, as an interface so

internal/domain/opendkim.go

@@ -167,6 +167,14 @@ func (o *OpenDKIM) Reload() error {
 	return o.reload()
 }
 
+// SetReloadHook replaces how configuration is applied after a rebuild. Tests
+// that cannot reach supervisord use this to verify file regeneration alone.
+func (o *OpenDKIM) SetReloadHook(fn func() error) {
+	if fn != nil {
+		o.reload = fn
+	}
+}
+
 // renderTables builds the KeyTable and SigningTable byte contents for a domain
 // set, sorted by name so the output is deterministic. Every domain is
 // re-checked for shell/config-injection safety before being written

internal/domain/service.go

@@ -145,13 +145,13 @@ func (s *Service) RateLimit(domainID int64) (store.RateLimit, bool, error) {
 }
 
 // SaveRateLimit stores the domain-level rate limit. The caller has validated the
-// IPs and numbers (security.md); the milter reads the row live, so no reload is
-// needed.
+// numbers (security.md); the milter reads the row live, so no reload is needed.
+// Domain limits do not use an IP allowlist.
 func (s *Service) SaveRateLimit(domainID int64, ips []string, maxMessages, windowSeconds int) error {
 	return s.store.SetRateLimit(store.RateLimit{
 		Scope:         store.RateLimitScopeDomain,
 		RefID:         domainID,
-		AllowedIPs:    ips,
+		AllowedIPs:    ips, // unused for domain enforcement; kept empty by the panel
 		MaxMessages:   maxMessages,
 		WindowSeconds: windowSeconds,
 	})

internal/domain/transfer.go

@@ -23,7 +23,7 @@ type DomainExport struct {
 	Version        string      `json:"version"`
 	Domain         string      `json:"domain"`
 	DKIMSelector   string      `json:"dkim_selector"`
-	DKIMPrivateKey string      `json:"dkim_private_key"` // PKCS#1 PEM
+	DKIMPrivateKey string      `json:"dkim_private_key"`    // PKCS#1 PEM
 	DMARCRua       *string     `json:"dmarc_rua,omitempty"` // nil = inherit profile; set = override ("" = none)
 	Applications   []AppExport `json:"applications"`
 }

internal/health/machine.go

@@ -62,10 +62,14 @@ type CPU struct {
 	// nothing until it is true.
 	Measured bool
 	BusyPct  float64
-	Cores    int
+	// Cores and Threads are physical cores and logical CPUs (SMT). Both come
+	// from /proc/cpuinfo when it is readable; otherwise Threads falls back to
+	// the cpuN lines in /proc/stat and Cores matches Threads.
+	Cores   int
+	Threads int
 	// Load is the 1/5/15-minute load average, present when /proc/loadavg
-	// could be read. Unlike BusyPct it needs no previous sample, so it is
-	// there on the very first page load.
+	// could be read. Unlike BusyPct it needs no previous sample. It is kept
+	// for the sampler but is no longer shown on the Status card.
 	Load    [3]float64
 	HasLoad bool
 	Status  Status
@@ -176,7 +180,14 @@ type netCounters struct {
 func (m *MachineSampler) Sample() Machine {
 	root := m.root()
 	now := time.Now()
-	cpuNow, cores, cpuErr := readCPUTimes(root)
+	cpuNow, logical, cpuErr := readCPUTimes(root)
+	cores, threads := readCPUTopology(root)
+	if threads == 0 {
+		threads = logical
+	}
+	if cores == 0 {
+		cores = threads
+	}
 	netNow, netErr := readNetDev(root)
 
 	m.mu.Lock()
@@ -198,7 +209,7 @@ func (m *MachineSampler) Sample() Machine {
 	fresh := !prevAt.IsZero() && window > 0 && window <= machineSampleWindow
 
 	mach := Machine{
-		CPU:     cpuUsage(prevCPU, cpuNow, cores, readLoadAvg(root), fresh, cpuErr),
+		CPU:     cpuUsage(prevCPU, cpuNow, cores, threads, readLoadAvg(root), fresh, cpuErr),
 		Memory:  readMemory(root),
 		Network: networkUsage(prevNet, netNow, window, fresh, netErr),
 	}
@@ -209,12 +220,11 @@ func (m *MachineSampler) Sample() Machine {
 	return mach
 }
 
-// cpuUsage grades the processor over the window. The load average is reported
-// alongside it because the two answer different questions — how busy the
-// processor was, and how many tasks were waiting for it — and a machine can
-// look idle while work queues up behind a slow disk.
-func cpuUsage(prev, cur cpuTimes, cores int, load [3]float64, fresh bool, err error) CPU {
-	c := CPU{Cores: cores}
+// cpuUsage grades the processor over the window. Detail carries only the
+// core and thread counts — load average and busy prose stay out of the Status
+// card (see roadmap panel-docs for operator-facing explanation later).
+func cpuUsage(prev, cur cpuTimes, cores, threads int, load [3]float64, fresh bool, err error) CPU {
+	c := CPU{Cores: cores, Threads: threads}
 	if !isZeroLoad(load) {
 		c.Load, c.HasLoad = load, true
 	}
@@ -223,9 +233,9 @@ func cpuUsage(prev, cur cpuTimes, cores int, load [3]float64, fresh bool, err er
 		c.Detail = "The kernel's processor counters (/proc/stat) could not be read here."
 		return c
 	}
+	c.Detail = c.contextText()
 	if !fresh || cur.total <= prev.total {
 		c.Status = StatusUnknown
-		c.Detail = joinDetail("Measuring — this reading sets the baseline; the next refresh has the figure.", c.contextText())
 		return c
 	}
 
@@ -242,25 +252,24 @@ func cpuUsage(prev, cur cpuTimes, cores int, load [3]float64, fresh bool, err er
 
 	if c.BusyPct >= cpuWarnPct {
 		c.Status = StatusWarn
-		c.Detail = joinDetail(c.contextText(), "The processor is close to fully busy, which slows queue processing and every panel page.")
 	} else {
 		c.Status = StatusOK
-		c.Detail = c.contextText()
 	}
 	return c
 }
 
-// contextText is the CPU's supporting figures: what the percentage is a
-// percentage of, and how deep the run queue is.
+// contextText is the CPU detail column: physical cores and logical threads.
 func (c CPU) contextText() string {
-	var parts []string
-	if c.Cores > 0 {
-		parts = append(parts, fmt.Sprintf("%d core(s)", c.Cores))
+	switch {
+	case c.Cores > 0 && c.Threads > 0:
+		return fmt.Sprintf("%d cores · %d threads", c.Cores, c.Threads)
+	case c.Threads > 0:
+		return fmt.Sprintf("%d threads", c.Threads)
+	case c.Cores > 0:
+		return fmt.Sprintf("%d cores", c.Cores)
+	default:
+		return ""
 	}
-	if c.HasLoad {
-		parts = append(parts, fmt.Sprintf("load average %.2f, %.2f, %.2f", c.Load[0], c.Load[1], c.Load[2]))
-	}
-	return strings.Join(parts, " · ")
 }
 
 // readMemory reports main memory from /proc/meminfo. Used is derived from
@@ -296,8 +305,7 @@ func readMemory(root string) Memory {
 		m.SwapUsedBytes = m.SwapTotalBytes - swapFree
 	}
 
-	detail := fmt.Sprintf("%s used of %s; %s available to new work.",
-		humanBytes(m.UsedBytes), humanBytes(total), humanBytes(available))
+	detail := fmt.Sprintf("%s used of %s.", humanBytes(m.UsedBytes), humanBytes(total))
 	if m.SwapTotalBytes > 0 {
 		detail += fmt.Sprintf(" Swap: %s of %s.", humanBytes(m.SwapUsedBytes), humanBytes(m.SwapTotalBytes))
 	}
@@ -418,6 +426,74 @@ func readCPUTimes(root string) (cpuTimes, int, error) {
 	return times, cores, nil
 }
 
+// readCPUTopology returns physical core and logical thread counts from
+// /proc/cpuinfo. Zeroes mean the file was missing or empty; the caller falls
+// back to the cpuN count from /proc/stat.
+func readCPUTopology(root string) (cores, threads int) {
+	data, err := os.ReadFile(filepath.Join(root, "cpuinfo"))
+	if err != nil {
+		return 0, 0
+	}
+	type coreKey struct{ phys, core int }
+	seen := map[coreKey]bool{}
+	var (
+		inCPU bool
+		phys  = -1
+		core  = -1
+		idx   int
+	)
+	flush := func() {
+		if !inCPU {
+			return
+		}
+		p, c := phys, core
+		if p < 0 {
+			p = idx
+		}
+		if c < 0 {
+			c = idx
+		}
+		seen[coreKey{p, c}] = true
+		inCPU, phys, core = false, -1, -1
+	}
+	for _, line := range strings.Split(string(data), "\n") {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			flush()
+			continue
+		}
+		key, val, ok := strings.Cut(line, ":")
+		if !ok {
+			continue
+		}
+		key = strings.TrimSpace(key)
+		val = strings.TrimSpace(val)
+		switch key {
+		case "processor":
+			flush()
+			inCPU = true
+			threads++
+			idx = threads - 1
+			if n, err := strconv.Atoi(val); err == nil {
+				idx = n
+			}
+		case "physical id":
+			if n, err := strconv.Atoi(val); err == nil {
+				phys = n
+			}
+		case "core id":
+			if n, err := strconv.Atoi(val); err == nil {
+				core = n
+			}
+		}
+	}
+	flush()
+	if threads == 0 {
+		return 0, 0
+	}
+	return len(seen), threads
+}
+
 // readLoadAvg reads the 1/5/15-minute load averages. A machine without
 // /proc/loadavg simply has none reported, so the failure is a zero value rather
 // than an error.
@@ -544,14 +620,3 @@ func humanRate(perSec float64) string {
 	}
 	return humanBytes(uint64(perSec+0.5)) + "/s"
 }
-
-// joinDetail joins the non-empty parts of a detail line.
-func joinDetail(parts ...string) string {
-	var kept []string
-	for _, p := range parts {
-		if p != "" {
-			kept = append(kept, p)
-		}
-	}
-	return strings.Join(kept, " ")
-}

internal/health/machine_test.go

@@ -47,7 +47,7 @@ func TestCPUUsageOverTwoReadings(t *testing.T) {
 	// 1000 ticks pass, 250 of them idle: 75% busy.
 	prev := cpuTimes{total: 10000, idle: 8000}
 	cur := cpuTimes{total: 11000, idle: 8250}
-	got := cpuUsage(prev, cur, 4, [3]float64{0.5, 0.4, 0.3}, true, nil)
+	got := cpuUsage(prev, cur, 4, 8, [3]float64{0.5, 0.4, 0.3}, true, nil)
 	if !got.Measured {
 		t.Fatalf("reading not marked measured: %+v", got)
 	}
@@ -57,16 +57,22 @@ func TestCPUUsageOverTwoReadings(t *testing.T) {
 	if got.Status != StatusOK {
 		t.Errorf("status = %q, want ok", got.Status)
 	}
-	if got.Cores != 4 || !got.HasLoad {
-		t.Errorf("cores/load not reported: %+v", got)
+	if got.Cores != 4 || got.Threads != 8 || !got.HasLoad {
+		t.Errorf("cores/threads/load not reported: %+v", got)
+	}
+	if got.Detail != "4 cores · 8 threads" {
+		t.Errorf("detail = %q, want cores and threads only", got.Detail)
 	}
 }
 
 func TestCPUUsageWarnsWhenFullyBusy(t *testing.T) {
-	got := cpuUsage(cpuTimes{total: 10000, idle: 5000}, cpuTimes{total: 11000, idle: 5010}, 1, [3]float64{}, true, nil)
+	got := cpuUsage(cpuTimes{total: 10000, idle: 5000}, cpuTimes{total: 11000, idle: 5010}, 1, 1, [3]float64{}, true, nil)
 	if got.Status != StatusWarn {
 		t.Errorf("99%% busy graded %q, want warn (%s)", got.Status, got.Detail)
 	}
+	if got.Detail != "1 cores · 1 threads" {
+		t.Errorf("detail = %q, want topology only (no warn prose)", got.Detail)
+	}
 	if got.HasLoad {
 		t.Error("a missing load average should not be reported as zeros")
 	}
@@ -84,17 +90,44 @@ func TestCPUUsageWithoutAUsableWindow(t *testing.T) {
 		{"no previous reading", cpuTimes{}, cpuTimes{total: 11000, idle: 8250}, false},
 		{"counters did not advance", cpuTimes{total: 11000, idle: 8250}, cpuTimes{total: 11000, idle: 8250}, true},
 	} {
-		got := cpuUsage(c.prev, c.cur, 2, [3]float64{}, c.fresh, nil)
+		got := cpuUsage(c.prev, c.cur, 2, 2, [3]float64{}, c.fresh, nil)
 		if got.Measured || got.Status != StatusUnknown {
 			t.Errorf("%s: measured=%v status=%q, want unmeasured/unknown", c.name, got.Measured, got.Status)
 		}
 	}
 
-	if got := cpuUsage(cpuTimes{}, cpuTimes{}, 0, [3]float64{}, false, os.ErrNotExist); got.Status != StatusUnknown {
+	if got := cpuUsage(cpuTimes{}, cpuTimes{}, 0, 0, [3]float64{}, false, os.ErrNotExist); got.Status != StatusUnknown {
 		t.Errorf("unreadable /proc/stat: status %q, want unknown", got.Status)
 	}
 }
 
+func TestReadCPUTopology(t *testing.T) {
+	dir := t.TempDir()
+	const cpuinfo = `processor	: 0
+physical id	: 0
+core id		: 0
+
+processor	: 1
+physical id	: 0
+core id		: 0
+
+processor	: 2
+physical id	: 0
+core id		: 1
+
+processor	: 3
+physical id	: 0
+core id		: 1
+`
+	if err := os.WriteFile(filepath.Join(dir, "cpuinfo"), []byte(cpuinfo), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	cores, threads := readCPUTopology(dir)
+	if cores != 2 || threads != 4 {
+		t.Errorf("topology = %d cores / %d threads, want 2/4", cores, threads)
+	}
+}
+
 func TestReadMemory(t *testing.T) {
 	dir := fakeProc(t, "cpu 1 1 1 1 1 1 1 1\n", meminfoSample, "0.1 0.2 0.3 1/2 3\n", netdevSample)
 	got := readMemory(dir)
@@ -104,8 +137,7 @@ func TestReadMemory(t *testing.T) {
 	if got.TotalBytes != 4*1024*1024*1024 {
 		t.Errorf("total = %d bytes (%s), want 4 GiB", got.TotalBytes, got.TotalText())
 	}
-	// 4 GiB total, 2 GiB available to new work: half used, cache included in
-	// what is available.
+	// 4 GiB total, 2 GiB MemAvailable: half used (cache counted as available).
 	if got.Percent() != 50 {
 		t.Errorf("used = %.1f%% (%s), want 50%%", got.UsedPct, got.PctText())
 	}
@@ -221,8 +253,11 @@ func TestMachineSamplerNeedsTwoReadings(t *testing.T) {
 	if !first.Memory.Measured {
 		t.Error("memory is a level, not a rate: it must be reported on the first sample")
 	}
-	if first.CPU.Cores != 2 {
-		t.Errorf("cores = %d, want 2", first.CPU.Cores)
+	if first.CPU.Cores != 2 || first.CPU.Threads != 2 {
+		t.Errorf("cores/threads = %d/%d, want 2/2", first.CPU.Cores, first.CPU.Threads)
+	}
+	if first.CPU.Detail != "2 cores · 2 threads" {
+		t.Errorf("detail = %q, want topology only", first.CPU.Detail)
 	}
 	if !first.CPU.HasLoad || first.CPU.Load[0] != 0.42 {
 		t.Errorf("load average not read: %+v", first.CPU.Load)

internal/health/socket.go

@@ -36,7 +36,7 @@ func CheckSocket(name, path string, required bool) Socket {
 	default:
 		s.Present = true
 		s.Status = StatusOK
-		s.Detail = "Listening."
+		s.Detail = "Listening"
 	}
 	return s
 }

internal/legal/legal.go

@@ -14,8 +14,9 @@ import (
 var License []byte
 
 // SourceURL is where Corresponding Source for the published upstream
-// releases lives. Operators who ship a modified version must point their
-// users at their own sources instead (NOTICE; AGPL-3.0 §13).
+// releases lives. It is injected into the panel footer by view.go.
+// Operators who ship a modified version must change this constant so the
+// footer points at their own sources (NOTICE; AGPL-3.0 §13).
 const SourceURL = "https://github.com/mixeme/selfpost"
 
 // CopyrightLine is the short copyright notice shown in the panel footer.

internal/legal/license_test.go

@@ -19,3 +19,22 @@ func TestEmbeddedLicenseMatchesRoot(t *testing.T) {
 		t.Fatal("embedded LICENSE is empty")
 	}
 }
+
+// NOTICE used to tell modifiers to edit layout.html for the Source URL. The
+// footer reads legal.SourceURL; a fork that only changed the template would
+// still advertise the upstream repo.
+func TestNoticePointsAtSourceURLConstant(t *testing.T) {
+	notice, err := os.ReadFile(filepath.Join("..", "..", "NOTICE"))
+	if err != nil {
+		t.Fatalf("read NOTICE: %v", err)
+	}
+	if !bytes.Contains(notice, []byte("internal/legal/legal.go")) {
+		t.Error("NOTICE must tell modifiers to update SourceURL in internal/legal/legal.go")
+	}
+	if bytes.Contains(notice, []byte("layout.html")) {
+		t.Error("NOTICE still tells modifiers to edit layout.html for the Source URL")
+	}
+	if !bytes.Contains(notice, []byte("internal/web/view/static/OFL.txt")) {
+		t.Error("NOTICE must point at the OFL text that travels with the Plex fonts")
+	}
+}

internal/milter/inflight.go

@@ -36,6 +36,29 @@ type inflight struct {
 	m  map[string]map[*reservation]struct{}
 }
 
+// tryAdmit decides whether one more message may be sent for key and, if so,
+// claims its slot — both under a single lock. Counting and reserving in two
+// separate critical sections would let two SMTP sessions that reach MAIL FROM
+// at the same moment observe the same total and each take the last free slot,
+// which is exactly the overshoot the in-flight registry exists to prevent.
+//
+// stored is the count the send log already holds for the limit's window and max
+// is the ceiling; the caller supplies both because only it can query the store.
+// The returned total is what was measured, for the refusal log line.
+func (f *inflight) tryAdmit(key string, since time.Time, stored, max int64) (*reservation, int64, bool) {
+	if f == nil {
+		return nil, stored, stored < max // no in-flight accounting (tests)
+	}
+	f.mu.Lock()
+	defer f.mu.Unlock()
+
+	total := stored + f.countLocked(key, since)
+	if total >= max {
+		return nil, total, false
+	}
+	return f.reserveLocked(key), total, true
+}
+
 // count returns how many reservations for key were taken within the limit's
 // window (at or after since), pruning any that outlived reservationTTL.
 func (f *inflight) count(key string, since time.Time) int64 {
@@ -45,6 +68,11 @@ func (f *inflight) count(key string, since time.Time) int64 {
 	f.mu.Lock()
 	defer f.mu.Unlock()
 
+	return f.countLocked(key, since)
+}
+
+// countLocked is count's body; the caller holds mu.
+func (f *inflight) countLocked(key string, since time.Time) int64 {
 	set := f.m[key]
 	cutoff := time.Now().Add(-reservationTTL)
 	var n int64
@@ -63,14 +91,8 @@ func (f *inflight) count(key string, since time.Time) int64 {
 	return n
 }
 
-// reserve claims a slot for key until the message is recorded or released.
-func (f *inflight) reserve(key string) *reservation {
-	if f == nil {
-		return nil
-	}
-	f.mu.Lock()
-	defer f.mu.Unlock()
-
+// reserveLocked is reserve's body; the caller holds mu.
+func (f *inflight) reserveLocked(key string) *reservation {
 	if f.m == nil {
 		f.m = make(map[string]map[*reservation]struct{})
 	}

internal/milter/milter_test.go

@@ -3,6 +3,7 @@ package milter
 import (
 	"errors"
 	"net"
+	"sync"
 	"testing"
 	"time"
 
@@ -15,7 +16,10 @@ import (
 // swallows recorder errors and still accepts the message. By default it reports
 // no configured rate limit, so the level-2 check is inert unless a test sets
 // limits (see fakeRecorder fields).
+// mu guards the recorded slices so several sessions may drive one recorder
+// concurrently, as they do in the real server.
 type fakeRecorder struct {
+	mu       sync.Mutex
 	entries  []store.SendLogEntry
 	rejected []store.SendLogEntry
 	fail     bool
@@ -27,17 +31,25 @@ type fakeRecorder struct {
 	counts    map[string]int64
 	lookupErr error
 	countErr  error
+
+	// onCount, if set, runs inside CountMessages. It lets a test hold every
+	// racing session at the store lookup until they can all proceed together.
+	onCount func()
 }
 
 func (f *fakeRecorder) InsertQueued(e store.SendLogEntry) error {
 	if f.fail {
 		return errors.New("boom")
 	}
+	f.mu.Lock()
+	defer f.mu.Unlock()
 	f.entries = append(f.entries, e)
 	return nil
 }
 
 func (f *fakeRecorder) InsertRejected(e store.SendLogEntry) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
 	f.rejected = append(f.rejected, e)
 	return nil
 }
@@ -47,6 +59,9 @@ func (f *fakeRecorder) RateLimit(scope, ref string) (store.RateLimit, bool, erro
 		return store.RateLimit{}, false, f.lookupErr
 	}
 	rl, ok := f.limits[scope+"|"+ref]
+	if ok {
+		rl.Scope = scope
+	}
 	return rl, ok, nil
 }
 
@@ -54,6 +69,9 @@ func (f *fakeRecorder) CountMessages(scope, ref string, _ time.Time) (int64, err
 	if f.countErr != nil {
 		return 0, f.countErr
 	}
+	if f.onCount != nil {
+		f.onCount()
+	}
 	return f.counts[scope+"|"+ref], nil
 }
 
@@ -186,11 +204,14 @@ func TestBracedMacros(t *testing.T) {
 	}
 }
 
-// limitAt is the client IP the rate-limit tests connect from; the limits below
-// register it so the differentiated check applies.
+// limitIP is the client IP rate-limit tests connect from.
 const limitIP = "203.0.113.7"
 
-func activeLimit(ips ...string) store.RateLimit {
+func domainLimit() store.RateLimit {
+	return store.RateLimit{MaxMessages: 5, WindowSeconds: 3600}
+}
+
+func appLimit(ips ...string) store.RateLimit {
 	return store.RateLimit{AllowedIPs: ips, MaxMessages: 5, WindowSeconds: 3600}
 }
 
@@ -212,7 +233,7 @@ func mailFrom(t *testing.T, rec Store, ip, from, login string) milter.Response {
 func TestRateLimitRefusesWhenDomainOverLimit(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": 5}, // == max
 	}
@@ -227,7 +248,7 @@ func TestRateLimitRefusesWhenDomainOverLimit(t *testing.T) {
 func TestRateLimitRefusesWhenAppOverLimit(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeApp + "|app1": activeLimit(limitIP),
+			store.RateLimitScopeApp + "|app1": appLimit(limitIP),
 		},
 		counts: map[string]int64{store.RateLimitScopeApp + "|app1": 9}, // over max
 	}
@@ -239,7 +260,7 @@ func TestRateLimitRefusesWhenAppOverLimit(t *testing.T) {
 func TestRateLimitAllowsUnderLimit(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": 4}, // < max
 	}
@@ -251,25 +272,76 @@ func TestRateLimitAllowsUnderLimit(t *testing.T) {
 	}
 }
 
-func TestRateLimitIgnoresUnregisteredIP(t *testing.T) {
+func TestRateLimitDomainAppliesToAnyIP(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit("198.51.100.1"), // not limitIP
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": 999},
 	}
-	// The sender's IP is not in the domain's registered set, so level-2 does not
-	// apply even though the count is huge (level-1 anvil would still cover it).
+	// Domain ceilings apply to every client IP; leftover AllowedIPs on the row
+	// are ignored.
+	if resp := mailFrom(t, rec, limitIP, "a@example.com", "app1"); resp != milter.RespTempFail {
+		t.Fatalf("domain over limit from any IP = %v, want TempFail", resp)
+	}
+}
+
+func TestRateLimitTrustedAppSkipsDomain(t *testing.T) {
+	rec := &fakeRecorder{
+		limits: map[string]store.RateLimit{
+			store.RateLimitScopeDomain + "|example.com": {MaxMessages: 1, WindowSeconds: 3600},
+			store.RateLimitScopeApp + "|app1": {
+				AllowedIPs: []string{limitIP}, MaxMessages: 10, WindowSeconds: 3600,
+			},
+		},
+		counts: map[string]int64{
+			store.RateLimitScopeDomain + "|example.com": 5, // over domain
+			store.RateLimitScopeApp + "|app1":           2, // under app
+		},
+	}
 	if resp := mailFrom(t, rec, limitIP, "a@example.com", "app1"); resp != milter.RespContinue {
-		t.Fatalf("unregistered IP = %v, want Continue (level-2 n/a)", resp)
+		t.Fatalf("trusted app under its ceiling = %v, want Continue (domain skipped)", resp)
+	}
+}
+
+func TestRateLimitUnlistedIPHitsDomain(t *testing.T) {
+	rec := &fakeRecorder{
+		limits: map[string]store.RateLimit{
+			store.RateLimitScopeDomain + "|example.com": {MaxMessages: 1, WindowSeconds: 3600},
+			store.RateLimitScopeApp + "|app1": {
+				AllowedIPs: []string{"198.51.100.1"}, MaxMessages: 100, WindowSeconds: 3600,
+			},
+		},
+		counts: map[string]int64{
+			store.RateLimitScopeDomain + "|example.com": 1,
+			store.RateLimitScopeApp + "|app1":           0,
+		},
+	}
+	if resp := mailFrom(t, rec, limitIP, "a@example.com", "app1"); resp != milter.RespTempFail {
+		t.Fatalf("unlisted IP under domain = %v, want TempFail", resp)
+	}
+}
+
+func TestRateLimitAppWithoutIPsDoesNotPrivilege(t *testing.T) {
+	rec := &fakeRecorder{
+		limits: map[string]store.RateLimit{
+			store.RateLimitScopeDomain + "|example.com": {MaxMessages: 1, WindowSeconds: 3600},
+			store.RateLimitScopeApp + "|app1":           {MaxMessages: 100, WindowSeconds: 3600}, // no IPs
+		},
+		counts: map[string]int64{
+			store.RateLimitScopeDomain + "|example.com": 1,
+			store.RateLimitScopeApp + "|app1":           0,
+		},
+	}
+	if resp := mailFrom(t, rec, limitIP, "a@example.com", "app1"); resp != milter.RespTempFail {
+		t.Fatalf("app without IPs must not skip domain = %v, want TempFail", resp)
 	}
 }
 
 func TestRateLimitInactiveWithoutCeiling(t *testing.T) {
 	rec := &fakeRecorder{
-		// IP registered but no ceiling/window: an inert draft, must not enforce.
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": {AllowedIPs: []string{limitIP}},
+			store.RateLimitScopeDomain + "|example.com": {AllowedIPs: []string{limitIP}}, // no max/window
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": 999},
 	}
@@ -288,7 +360,7 @@ func TestRateLimitFailsOpenOnLookupError(t *testing.T) {
 func TestRateLimitFailsOpenOnCountError(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		countErr: errors.New("db down"),
 	}
@@ -300,7 +372,7 @@ func TestRateLimitFailsOpenOnCountError(t *testing.T) {
 func TestRateLimitNoIPKeyDoesNotApply(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": 999},
 	}
@@ -333,7 +405,7 @@ func mailFromIn(t *testing.T, rec Store, fl *inflight, ip, from, login string) (
 func limitedRecorder(count int64) *fakeRecorder {
 	return &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
 		},
 		counts: map[string]int64{store.RateLimitScopeDomain + "|example.com": count},
 	}
@@ -358,6 +430,58 @@ func TestRateLimitCountsInFlightMessages(t *testing.T) {
 	}
 }
 
+// The case above is sequential: the second session reads the stored count after
+// the first has already reserved. Here every session reads it first — the gate
+// holds them all inside the lookup — which is what concurrent SMTP connections
+// actually do. However many then race for the single free slot, exactly one may
+// pass. (TestTryAdmitHandsOutEachSlotOnce is the test that fails when counting
+// and reserving are not one step; this one pins the session-level behaviour.)
+func TestRateLimitAdmitsOnlyOneRacingSession(t *testing.T) {
+	rec := limitedRecorder(4) // one below the ceiling of 5
+	fl := &inflight{}
+	gate := make(chan struct{})
+
+	// Every session is held inside the stored-count lookup until all of them
+	// have read it, which is the state the race needs: none of them can see
+	// another's reservation, because none has been taken yet.
+	const racers = 32
+	var atCount, done sync.WaitGroup
+	atCount.Add(racers)
+	go func() { atCount.Wait(); close(gate) }()
+	rec.onCount = func() { atCount.Done(); <-gate }
+
+	responses := make([]milter.Response, racers)
+	for i := range racers {
+		done.Add(1)
+		go func() {
+			defer done.Done()
+			// Connect is skipped so every goroutine starts from the same point;
+			// the client IP is what Connect would have captured.
+			s := &session{rec: rec, flight: fl, clientIP: limitIP}
+			resp, err := s.MailFrom("a@example.com", mods(map[string]string{"auth_authen": "app1"}))
+			if err != nil {
+				resp = nil // reported as a missing Continue below
+			}
+			responses[i] = resp
+		}()
+	}
+	done.Wait()
+
+	admitted := 0
+	for _, resp := range responses {
+		if resp == milter.RespContinue {
+			admitted++
+		}
+	}
+	if admitted != 1 {
+		t.Fatalf("%d of %d racing sessions admitted, want exactly 1 — the last slot was handed out twice",
+			admitted, racers)
+	}
+	if n := fl.count(store.RateLimitScopeDomain+"|example.com", time.Now().Add(-time.Hour)); n != 1 {
+		t.Fatalf("in-flight reservations = %d, want 1", n)
+	}
+}
+
 // Once the message is recorded the stored count sees it, so its reservation
 // must be given back — otherwise it would be counted twice and the ceiling
 // would drift closed.
@@ -395,17 +519,17 @@ func TestReservationReleasedOnAbort(t *testing.T) {
 	}
 }
 
-// A refused message must not leave the slots it claimed for the limits checked
-// before the one that tripped, or every refusal would tighten the ceiling.
-func TestRefusalReleasesEarlierReservation(t *testing.T) {
+// A trusted app at its ceiling refuses without touching the domain counter;
+// no domain reservation should linger after the refusal.
+func TestRefusalDoesNotLeaveDomainReservation(t *testing.T) {
 	rec := &fakeRecorder{
 		limits: map[string]store.RateLimit{
-			store.RateLimitScopeDomain + "|example.com": activeLimit(limitIP),
-			store.RateLimitScopeApp + "|app1":           activeLimit(limitIP),
+			store.RateLimitScopeDomain + "|example.com": domainLimit(),
+			store.RateLimitScopeApp + "|app1":           appLimit(limitIP),
 		},
 		counts: map[string]int64{
-			store.RateLimitScopeDomain + "|example.com": 0, // domain: plenty of room
-			store.RateLimitScopeApp + "|app1":           5, // app: at the ceiling
+			store.RateLimitScopeDomain + "|example.com": 0,
+			store.RateLimitScopeApp + "|app1":           5, // app at ceiling
 		},
 	}
 	fl := &inflight{}
@@ -415,6 +539,49 @@ func TestRefusalReleasesEarlierReservation(t *testing.T) {
 	if n := fl.count(store.RateLimitScopeDomain+"|example.com", time.Now().Add(-time.Hour)); n != 0 {
 		t.Fatalf("domain reservation left behind after refusal: %d", n)
 	}
+	if n := fl.count(store.RateLimitScopeApp+"|app1", time.Now().Add(-time.Hour)); n != 0 {
+		t.Fatalf("app reservation left behind after refusal: %d", n)
+	}
+}
+
+// The ceiling is handed out exactly max times however the sessions interleave.
+// Counting and reserving in two critical sections passes the sequential tests
+// above and still overshoots here, because between one session's count and its
+// reservation any number of others can pass the same check.
+func TestTryAdmitHandsOutEachSlotOnce(t *testing.T) {
+	const (
+		max     = 500
+		workers = 8
+	)
+	fl := &inflight{}
+	since := time.Now().Add(-time.Hour)
+	start := make(chan struct{})
+	admitted := make([]int, workers)
+	var wg sync.WaitGroup
+	for i := range workers {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			<-start
+			for {
+				_, _, ok := fl.tryAdmit("domain|example.com", since, 0, max)
+				if !ok {
+					return
+				}
+				admitted[i]++
+			}
+		}()
+	}
+	close(start)
+	wg.Wait()
+
+	total := 0
+	for _, n := range admitted {
+		total += n
+	}
+	if total != max {
+		t.Fatalf("admitted %d messages under a ceiling of %d", total, max)
+	}
 }
 
 // The in-flight count only covers the limit's own window: a reservation older
@@ -422,7 +589,10 @@ func TestRefusalReleasesEarlierReservation(t *testing.T) {
 // counted against a window it no longer belongs to.
 func TestInflightIgnoresReservationsOutsideWindow(t *testing.T) {
 	fl := &inflight{}
-	r := fl.reserve("domain|example.com")
+	r, _, ok := fl.tryAdmit("domain|example.com", time.Now().Add(-time.Hour), 0, 1)
+	if !ok {
+		t.Fatal("tryAdmit refused the first message under a ceiling of 1")
+	}
 	r.at = time.Now().Add(-time.Minute)
 
 	if n := fl.count("domain|example.com", time.Now().Add(-time.Hour)); n != 1 {

internal/milter/ratelimit.go

@@ -8,9 +8,11 @@ import (
 )
 
 // overLimit reports whether the message currently being received should be
-// refused under a level-2 differentiated limit (guide § Rate limiting). It
-// checks the domain-level and application-level limits in turn; either being
-// exceeded is enough to refuse.
+// refused under a level-2 differentiated limit (guide § Rate limiting).
+//
+// Trusted application IPs (app limit active and client IP listed) use only the
+// app ceiling and skip the domain check. Everyone else is under the domain
+// ceiling when one is configured; otherwise only level 1 applies.
 //
 // It is deliberately fail-open: any store error, or the absence of a usable
 // limit, is treated as "not over limit" so a malfunction of the level-2
@@ -26,46 +28,49 @@ func (s *session) overLimit() bool {
 	if s.clientIP == "" {
 		return false // no client IP to key on; level-2 does not apply
 	}
-	checks := []struct{ scope, ref string }{
-		{store.RateLimitScopeDomain, domainOf(s.from)},
-		{store.RateLimitScopeApp, s.login},
-	}
-	var taken []*reservation
-	for _, c := range checks {
-		if c.ref == "" {
-			continue
-		}
-		rl, ok, err := s.rec.RateLimit(c.scope, c.ref)
+
+	if s.login != "" {
+		rl, ok, err := s.rec.RateLimit(store.RateLimitScopeApp, s.login)
 		if err != nil {
-			log.Printf("journal-milter: rate-limit lookup %s %q: %v (fail-open)", c.scope, c.ref, err)
-			continue
+			log.Printf("journal-milter: rate-limit lookup application %q: %v (fail-open)", s.login, err)
+		} else if ok && rl.Active() && rl.AllowsIP(s.clientIP) {
+			return s.enforceLimit(store.RateLimitScopeApp, s.login, rl)
 		}
-		// No limit configured, an inert draft, or a client IP outside the
-		// registered set: the differentiated limit does not apply here.
-		if !ok || !rl.Active() || !rl.AllowsIP(s.clientIP) {
-			continue
-		}
-		since := time.Now().Add(-time.Duration(rl.WindowSeconds) * time.Second)
-		n, err := s.rec.CountMessages(c.scope, c.ref, since)
-		if err != nil {
-			log.Printf("journal-milter: rate-limit count %s %q: %v (fail-open)", c.scope, c.ref, err)
-			continue
-		}
-		key := c.scope + "|" + c.ref
-		n += s.flight.count(key, since)
-		if n >= int64(rl.MaxMessages) {
-			log.Printf("journal-milter: %s %q over limit: %d/%d in %ds from %s — refusing 4xx",
-				c.scope, c.ref, n, rl.MaxMessages, rl.WindowSeconds, s.clientIP)
-			// The message is refused, so the slots claimed for the limits
-			// checked before this one must not stay claimed.
-			for _, r := range taken {
-				s.flight.release(r)
-			}
-			return true
-		}
-		taken = append(taken, s.flight.reserve(key))
 	}
-	s.reserved = append(s.reserved, taken...)
+
+	domain := domainOf(s.from)
+	if domain == "" {
+		return false
+	}
+	rl, ok, err := s.rec.RateLimit(store.RateLimitScopeDomain, domain)
+	if err != nil {
+		log.Printf("journal-milter: rate-limit lookup domain %q: %v (fail-open)", domain, err)
+		return false
+	}
+	if !ok || !rl.Active() {
+		return false
+	}
+	return s.enforceLimit(store.RateLimitScopeDomain, domain, rl)
+}
+
+// enforceLimit counts recent messages for scope/ref and refuses when at or
+// above the ceiling. The stored count and the in-flight slots are weighed and
+// the admitted message's own slot is taken in one atomic step (tryAdmit), so
+// two sessions racing at MAIL FROM cannot both claim the last free slot.
+func (s *session) enforceLimit(scope, ref string, rl store.RateLimit) bool {
+	since := time.Now().Add(-time.Duration(rl.WindowSeconds) * time.Second)
+	stored, err := s.rec.CountMessages(scope, ref, since)
+	if err != nil {
+		log.Printf("journal-milter: rate-limit count %s %q: %v (fail-open)", scope, ref, err)
+		return false
+	}
+	r, n, ok := s.flight.tryAdmit(scope+"|"+ref, since, stored, int64(rl.MaxMessages))
+	if !ok {
+		log.Printf("journal-milter: %s %q over limit: %d/%d in %ds from %s — refusing 4xx",
+			scope, ref, n, rl.MaxMessages, rl.WindowSeconds, s.clientIP)
+		return true
+	}
+	s.reserved = append(s.reserved, r)
 	return false
 }
 

internal/postfix/postfix.go

@@ -75,6 +75,14 @@ func (p *Postfix) Reload() error {
 	return p.reload()
 }
 
+// SetReloadHook replaces how configuration is applied after a rebuild. Tests
+// that cannot reach supervisord use this to verify file regeneration alone.
+func (p *Postfix) SetReloadHook(fn func() error) {
+	if fn != nil {
+		p.reload = fn
+	}
+}
+
 // renderSenderLoginMaps builds the sender_login_maps file contents. Keys are
 // sorted for deterministic output and the logins under each key are sorted and
 // de-duplicated. Every address and login is re-checked for injection safety

internal/store/domains.go

@@ -75,6 +75,32 @@ func (s *Store) ListDomains() ([]Domain, error) {
 	return out, rows.Err()
 }
 
+// ListDomainsForUser returns domains assigned to userID with application counts,
+// ordered by name.
+func (s *Store) ListDomainsForUser(userID int64) ([]Domain, error) {
+	rows, err := s.db.Query(`
+		SELECT d.id, d.name, d.dkim_selector, d.dmarc_rua, d.created_at,
+		       (SELECT COUNT(*) FROM applications a WHERE a.domain_id = d.id)
+		FROM domains d
+		INNER JOIN user_domains ud ON ud.domain_id = d.id
+		WHERE ud.user_id = ?
+		ORDER BY d.name`, userID)
+	if err != nil {
+		return nil, fmt.Errorf("list domains for user: %w", err)
+	}
+	defer rows.Close()
+
+	var out []Domain
+	for rows.Next() {
+		d, err := scanDomain(rows)
+		if err != nil {
+			return nil, err
+		}
+		out = append(out, d)
+	}
+	return out, rows.Err()
+}
+
 // GetDomain returns a single domain (with its application count) by id, or
 // ErrDomainNotFound.
 func (s *Store) GetDomain(id int64) (Domain, error) {

internal/store/ratelimits.go

@@ -18,36 +18,40 @@ const (
 )
 
 // RateLimit is a differentiated level-2 rate limit (guide § Rate limiting):
-// an optional set of expected client IPs plus a message ceiling over a sliding
-// window, attached to a domain or an application. It is enforced in the
-// journal-milter; level 1 (Postfix anvil, architecture.md § Mail path) is the
-// IP backstop that always applies even when this is absent or the milter is
-// down.
+// a message ceiling over a sliding window, attached to a domain or an
+// application. It is enforced in the journal-milter; level 1 (Postfix anvil,
+// architecture.md § Mail path) is the IP backstop that always applies even
+// when this is absent or the milter is down.
 //
-// Both the IP binding and the ceiling are optional in the schema, but a limit
-// is only enforced when it is Active(): the design deliberately allows an
-// admin to leave the IP binding empty for apps that send from changing IPs, in
-// which case only level 1 protects them (guide § Rate limiting).
+// Domain limits apply to every client IP once max and window are set. Application
+// limits additionally require AllowedIPs: those trusted addresses get the app
+// ceiling (above the domain) and skip the domain check; other IPs stay under
+// the domain limit or level 1 alone (guide § Rate limiting).
 type RateLimit struct {
 	Scope         string
 	RefID         int64
-	AllowedIPs    []string // canonical client IPs this limit applies to
+	AllowedIPs    []string // trusted client IPs for an application override
 	MaxMessages   int
 	WindowSeconds int
 }
 
 // Active reports whether the limit is fully configured and should be enforced.
-// A missing IP binding, ceiling or window leaves the differentiated limit
-// inert (guide § Rate limiting): the IP binding is what scopes the limit to a
-// known sender.
+// Domain: max and window only. Application: also needs at least one trusted IP
+// (the privilege that raises the ceiling above the domain).
 func (r RateLimit) Active() bool {
-	return len(r.AllowedIPs) > 0 && r.MaxMessages > 0 && r.WindowSeconds > 0
+	if r.MaxMessages <= 0 || r.WindowSeconds <= 0 {
+		return false
+	}
+	if r.Scope == RateLimitScopeApp {
+		return len(r.AllowedIPs) > 0
+	}
+	// Domain (and any unset/legacy scope treated as domain-style): no IP list.
+	return true
 }
 
-// AllowsIP reports whether ip is one of the limit's registered client IPs. The
-// comparison parses both sides so equivalent textual forms of the same address
-// match; a client IP outside the list means the differentiated limit does not
-// apply to it (level 1 still does).
+// AllowsIP reports whether ip is one of the application's trusted client IPs.
+// Used only for application overrides; domain limits do not consult this list.
+// Equivalent textual forms of the same address match.
 func (r RateLimit) AllowsIP(ip string) bool {
 	c := net.ParseIP(ip)
 	if c == nil {
@@ -183,8 +187,8 @@ func (s *Store) CountMessages(scope, ref string, since time.Time) (int64, error)
 }
 
 // scanRateLimit reads the three stored columns, tolerating NULL numeric columns
-// (an IP-only draft) by leaving the corresponding field zero, which makes the
-// limit inert via Active().
+// by leaving the corresponding field zero, which makes the limit inert via
+// Active() until max and window are both set.
 func scanRateLimit(r scanRow) (RateLimit, error) {
 	var (
 		ips        sql.NullString

internal/store/ratelimits_test.go

@@ -152,27 +152,35 @@ func TestDeleteRateLimitsForDomain(t *testing.T) {
 func TestRateLimitActiveAndAllowsIP(t *testing.T) {
 	inactive := []RateLimit{
 		{},
-		{AllowedIPs: []string{"203.0.113.1"}}, // no ceiling
-		{AllowedIPs: []string{"203.0.113.1"}, MaxMessages: 5}, // no window
-		{MaxMessages: 5, WindowSeconds: 60},                   // no IPs
+		{Scope: RateLimitScopeDomain, AllowedIPs: []string{"203.0.113.1"}},              // no ceiling
+		{Scope: RateLimitScopeDomain, MaxMessages: 5},                                   // no window
+		{Scope: RateLimitScopeApp, MaxMessages: 5, WindowSeconds: 60},                   // app needs IPs
+		{Scope: RateLimitScopeApp, AllowedIPs: []string{"203.0.113.1"}, MaxMessages: 5}, // no window
 	}
 	for i, rl := range inactive {
 		if rl.Active() {
 			t.Fatalf("case %d: %+v should be inactive", i, rl)
 		}
 	}
-	active := RateLimit{AllowedIPs: []string{"203.0.113.1", "2001:db8::1"}, MaxMessages: 5, WindowSeconds: 60}
-	if !active.Active() {
-		t.Fatalf("should be active: %+v", active)
+	domainActive := RateLimit{Scope: RateLimitScopeDomain, MaxMessages: 5, WindowSeconds: 60}
+	if !domainActive.Active() {
+		t.Fatalf("domain without IPs should be active: %+v", domainActive)
 	}
-	if !active.AllowsIP("203.0.113.1") || !active.AllowsIP("2001:db8::1") {
+	appActive := RateLimit{
+		Scope: RateLimitScopeApp, AllowedIPs: []string{"203.0.113.1", "2001:db8::1"},
+		MaxMessages: 5, WindowSeconds: 60,
+	}
+	if !appActive.Active() {
+		t.Fatalf("should be active: %+v", appActive)
+	}
+	if !appActive.AllowsIP("203.0.113.1") || !appActive.AllowsIP("2001:db8::1") {
 		t.Fatalf("registered IPs should match")
 	}
 	// Equivalent textual form of the IPv6 address must still match.
-	if !active.AllowsIP("2001:0db8:0000:0000:0000:0000:0000:0001") {
+	if !appActive.AllowsIP("2001:0db8:0000:0000:0000:0000:0000:0001") {
 		t.Fatalf("expanded IPv6 form should match")
 	}
-	if active.AllowsIP("198.51.100.7") || active.AllowsIP("not-an-ip") || active.AllowsIP("") {
+	if appActive.AllowsIP("198.51.100.7") || appActive.AllowsIP("not-an-ip") || appActive.AllowsIP("") {
 		t.Fatalf("unregistered/invalid IPs must not match")
 	}
 }

internal/store/sendlog.go

@@ -178,15 +178,29 @@ func (s *Store) GetSendLog(id int64) (SendLogRow, error) {
 	return row, nil
 }
 
-// SendLogFilter narrows QuerySendLog/CountSendLog by domain and/or
-// application login. An empty field matches everything.
+// SendLogFilter narrows QuerySendLog/CountSendLog. It carries two kinds of
+// narrowing, and they behave in opposite ways on purpose.
+//
+// Domain and AppLogin are the operator's own filters, chosen in the UI: an
+// empty field matches everything.
+//
+// Domains and AllDomains are the authorization scope, which no query parameter
+// may widen. Domains is the exhaustive set of domain names the caller is
+// entitled to read, applied as an IN constraint; AllDomains lifts that
+// restriction and is the only way to read the whole journal. A zero-valued
+// filter therefore matches *no* rows: a caller that forgets to state a scope
+// gets an empty log rather than every tenant's mail, which is the failure mode
+// this struct exists to make impossible.
 type SendLogFilter struct {
-	Domain   string
-	AppLogin string
+	Domain     string
+	AppLogin   string
+	Domains    []string
+	AllDomains bool
 }
 
 // QuerySendLog returns send-log rows matching filter, newest first, for the
 // monitoring screen's server-side pagination (product.md's send-log view).
+// The filter's authorization scope is mandatory: see SendLogFilter.
 func (s *Store) QuerySendLog(filter SendLogFilter, limit, offset int) ([]SendLogRow, error) {
 	where, args := sendLogWhere(filter)
 	args = append(args, limit, offset)
@@ -233,6 +247,20 @@ func (s *Store) CountSendLog(filter SendLogFilter) (int64, error) {
 func sendLogWhere(f SendLogFilter) (string, []any) {
 	var clauses []string
 	var args []any
+	if !f.AllDomains {
+		// No scope is not "no restriction": a domain administrator whose last
+		// assignment was deleted owns nothing in the journal and must see
+		// nothing, and the same clause catches a caller that never set a scope.
+		if len(f.Domains) == 0 {
+			return " WHERE 1 = 0", nil
+		}
+		marks := make([]string, len(f.Domains))
+		for i, name := range f.Domains {
+			marks[i] = "?"
+			args = append(args, name)
+		}
+		clauses = append(clauses, "domain IN ("+strings.Join(marks, ", ")+")")
+	}
 	if f.Domain != "" {
 		clauses = append(clauses, "domain = ?")
 		args = append(args, f.Domain)

internal/store/sendlog_test.go

@@ -1,6 +1,8 @@
 package store
 
 import (
+	"sort"
+	"strings"
 	"testing"
 	"time"
 )
@@ -162,6 +164,61 @@ func TestUpdateStatusNoMatch(t *testing.T) {
 	}
 }
 
+// The journal is read by principals who are only entitled to part of it, so
+// the scope is part of the query rather than something the caller remembers to
+// apply afterwards. A filter that states no scope is a caller that has not
+// decided who is asking, and the safe answer to that is nothing.
+func TestSendLogScopeIsMandatory(t *testing.T) {
+	st := openTestStore(t)
+	for _, domain := range []string{"first.example.ru", "second.example.ru"} {
+		if err := st.InsertQueued(SendLogEntry{
+			QueueID: "Q-" + domain, Domain: domain, AppLogin: "app-" + domain,
+			From: "noreply@" + domain, To: "public@example.net", Subject: domain,
+		}); err != nil {
+			t.Fatalf("InsertQueued: %v", err)
+		}
+	}
+
+	for name, tc := range map[string]struct {
+		filter SendLogFilter
+		want   []string
+	}{
+		"no scope":           {SendLogFilter{}, nil},
+		"empty scope":        {SendLogFilter{Domains: []string{}}, nil},
+		"all domains":        {SendLogFilter{AllDomains: true}, []string{"first.example.ru", "second.example.ru"}},
+		"one domain":         {SendLogFilter{Domains: []string{"first.example.ru"}}, []string{"first.example.ru"}},
+		"two domains":        {SendLogFilter{Domains: []string{"first.example.ru", "second.example.ru"}}, []string{"first.example.ru", "second.example.ru"}},
+		"unknown domain":     {SendLogFilter{Domains: []string{"third.example.ru"}}, nil},
+		"filter within":      {SendLogFilter{Domain: "first.example.ru", Domains: []string{"first.example.ru", "second.example.ru"}}, []string{"first.example.ru"}},
+		"filter outside":     {SendLogFilter{Domain: "second.example.ru", Domains: []string{"first.example.ru"}}, nil},
+		"app filter outside": {SendLogFilter{AppLogin: "app-second.example.ru", Domains: []string{"first.example.ru"}}, nil},
+	} {
+		rows, err := st.QuerySendLog(tc.filter, 50, 0)
+		if err != nil {
+			t.Fatalf("%s: QuerySendLog: %v", name, err)
+		}
+		var got []string
+		for _, r := range rows {
+			got = append(got, r.Domain)
+		}
+		// Which rows came back is the question here; the page's own order is
+		// newest-first and is tested where it matters.
+		sort.Strings(got)
+		if strings.Join(got, ",") != strings.Join(tc.want, ",") {
+			t.Errorf("%s: rows for %v, want %v", name, got, tc.want)
+		}
+		// The count drives pagination, so it has to agree with the page or the
+		// UI advertises pages of rows the reader is not allowed to see.
+		n, err := st.CountSendLog(tc.filter)
+		if err != nil {
+			t.Fatalf("%s: CountSendLog: %v", name, err)
+		}
+		if int(n) != len(tc.want) {
+			t.Errorf("%s: count %d, want %d", name, n, len(tc.want))
+		}
+	}
+}
+
 func TestDeleteSendLogBefore(t *testing.T) {
 	st := openTestStore(t)
 

internal/store/store.go

@@ -1,7 +1,8 @@
 // Package store owns the SelfPost SQLite database: the single file under /data
-// that persists the administrator account, sending domains and applications,
-// the send log and rate-limit settings (architecture.md § Persistence). It
-// exposes typed queries so the rest of the panel never builds SQL by hand.
+// that persists panel users (global administrators and domain-admins), sending
+// domains and applications, the send log and rate-limit settings
+// (architecture.md § Persistence). It exposes typed queries so the rest of the
+// panel never builds SQL by hand.
 package store
 
 import (

internal/web/auth/auth.go

@@ -51,6 +51,8 @@ func New(st *store.Store, cfg Config, v *view.Engine, setupTokenPath string) *Mo
 		loginLimiter:   newRateLimiter(10, 15*time.Minute),
 		trustedProxies: cfg.TrustedProxyCIDRs,
 	}
+	m.setupLimiter.startSweeper()
+	m.loginLimiter.startSweeper()
 	m.setup = newSetupManager(st, cfg.Hostname, setupTokenPath)
 	return m
 }

internal/web/auth/auth_test.go

@@ -1,13 +1,17 @@
 package auth
 
 import (
+	"database/sql"
 	"net/http"
 	"net/http/httptest"
+	"net/url"
 	"path/filepath"
 	"strings"
 	"testing"
 	"time"
 
+	"golang.org/x/crypto/bcrypt"
+
 	"github.com/mixeme/selfpost/internal/store"
 	"github.com/mixeme/selfpost/internal/web/view"
 )
@@ -22,6 +26,15 @@ func newTestSessionStore(t *testing.T) *sessionStore {
 	return newSessionStore(st, 7*24*time.Hour)
 }
 
+func mustCreate(t *testing.T, s *sessionStore, username string) string {
+	t.Helper()
+	token, err := s.Create(username)
+	if err != nil {
+		t.Fatalf("create session: %v", err)
+	}
+	return token
+}
+
 func mustView(t *testing.T) *view.Engine {
 	t.Helper()
 	v, err := view.New("test")
@@ -86,7 +99,7 @@ func TestSessionTokenIgnoresTheOtherName(t *testing.T) {
 
 func TestRequireAuthRejectsDuplicateCookies(t *testing.T) {
 	m := testModule(t, false)
-	token := m.sessions.Create("admin")
+	token := mustCreate(t, m.sessions, "admin")
 
 	reached := false
 	h := m.RequireAuth(http.HandlerFunc(func(http.ResponseWriter, *http.Request) { reached = true }))
@@ -107,7 +120,7 @@ func TestRequireAuthRejectsDuplicateCookies(t *testing.T) {
 
 func TestLogoutClearsBothCookieNames(t *testing.T) {
 	m := testModule(t, true)
-	token := m.sessions.Create("admin")
+	token := mustCreate(t, m.sessions, "admin")
 
 	r := httptest.NewRequest(http.MethodPost, "http://panel.example.com/logout", nil)
 	r.Host = "panel.example.com"
@@ -132,9 +145,63 @@ func TestLogoutClearsBothCookieNames(t *testing.T) {
 	}
 }
 
+// A session that could not be stored must not turn into a cookie: the browser
+// would look signed in, and every request it made would be bounced to /login
+// with no explanation. Only the sessions table is broken here, so the request
+// gets past the user lookup and password check and fails exactly where the
+// session is written.
+func TestLoginSetsNoCookieWhenTheSessionCannotBeStored(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "test.db")
+	st, err := store.Open(path)
+	if err != nil {
+		t.Fatalf("open store: %v", err)
+	}
+	t.Cleanup(func() { st.Close() })
+	hash, err := bcrypt.GenerateFromPassword([]byte("correct-horse-battery"), bcrypt.MinCost)
+	if err != nil {
+		t.Fatalf("hash password: %v", err)
+	}
+	if err := st.CreateGlobalUser("admin", string(hash)); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
+	dropSessionsTable(t, path)
+
+	m := New(st, Config{}, mustView(t), "")
+	form := url.Values{"username": {"admin"}, "password": {"correct-horse-battery"}}
+	r := httptest.NewRequest(http.MethodPost, "http://panel.example.com/login",
+		strings.NewReader(form.Encode()))
+	r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	rec := httptest.NewRecorder()
+	m.HandleLogin(rec, r)
+
+	if got := rec.Header().Values("Set-Cookie"); len(got) != 0 {
+		t.Errorf("a session cookie was issued for a session that was never stored: %v", got)
+	}
+	if rec.Code != http.StatusInternalServerError {
+		t.Errorf("status = %d, want 500 (the login failed)", rec.Code)
+	}
+	if loc := rec.Header().Get("Location"); loc != "" {
+		t.Errorf("the browser was sent to %q as if it were signed in", loc)
+	}
+}
+
+// dropSessionsTable breaks session persistence while leaving the rest of the
+// schema usable. The SQLite driver is registered by internal/store.
+func dropSessionsTable(t *testing.T, path string) {
+	t.Helper()
+	db, err := sql.Open("sqlite", "file:"+path+"?_pragma=busy_timeout(5000)")
+	if err != nil {
+		t.Fatalf("open database directly: %v", err)
+	}
+	defer db.Close()
+	if _, err := db.Exec("DROP TABLE sessions"); err != nil {
+		t.Fatalf("drop sessions table: %v", err)
+	}
+}
+
 func TestSessionRename(t *testing.T) {
 	s := newTestSessionStore(t)
-	token := s.Create("admin")
+	token := mustCreate(t, s, "admin")
 
 	s.Rename(token, "operator")
 
@@ -149,8 +216,8 @@ func TestSessionRename(t *testing.T) {
 
 func TestSessionDestroyOthers(t *testing.T) {
 	s := newTestSessionStore(t)
-	keep := s.Create("admin")
-	other := s.Create("admin")
+	keep := mustCreate(t, s, "admin")
+	other := mustCreate(t, s, "admin")
 
 	s.DestroyOthers(keep)
 
@@ -165,7 +232,7 @@ func TestSessionDestroyOthers(t *testing.T) {
 func TestSessionLookupRejectsExpired(t *testing.T) {
 	s := newTestSessionStore(t)
 	s.idle = -time.Minute
-	token := s.Create("admin")
+	token := mustCreate(t, s, "admin")
 
 	if _, ok := s.Lookup(token); ok {
 		t.Fatal("expired session was accepted")
@@ -174,7 +241,7 @@ func TestSessionLookupRejectsExpired(t *testing.T) {
 
 func TestSessionTouchThrottled(t *testing.T) {
 	s := newTestSessionStore(t)
-	token := s.Create("admin")
+	token := mustCreate(t, s, "admin")
 
 	if s.Touch(token) {
 		t.Fatal("touch renewed a session created moments ago")

internal/web/auth/handlers.go

@@ -120,7 +120,12 @@ func (m *Module) submitLogin(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	token := m.sessions.Create(user.Username)
+	token, err := m.sessions.Create(user.Username)
+	if err != nil {
+		logf("panel: login: create session failed: %v", err)
+		m.renderLogin(w, http.StatusInternalServerError, "Internal error. Please try again.")
+		return
+	}
 	m.setSessionCookie(w, token)
 	http.Redirect(w, r, "/", http.StatusSeeOther)
 }

internal/web/auth/handlers_test.go

@@ -0,0 +1,284 @@
+package auth
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+const testPassword = "correct-horse-battery"
+
+// moduleWithAdmin returns a panel that has already been through setup, with one
+// global administrator whose password is testPassword.
+func moduleWithAdmin(t *testing.T) *Module {
+	t.Helper()
+	m := testModule(t, false)
+	hash, err := bcrypt.GenerateFromPassword([]byte(testPassword), bcrypt.MinCost)
+	if err != nil {
+		t.Fatalf("hash password: %v", err)
+	}
+	if err := m.store.CreateGlobalUser("admin", string(hash)); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
+	return m
+}
+
+// postLogin submits the sign-in form from remoteAddr (the limiter's key) and
+// returns what the handler wrote.
+func postLogin(m *Module, remoteAddr, username, password string) *httptest.ResponseRecorder {
+	form := url.Values{"username": {username}, "password": {password}}
+	r := httptest.NewRequest(http.MethodPost, "http://panel.example.com/login",
+		strings.NewReader(form.Encode()))
+	r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	r.RemoteAddr = remoteAddr
+	rec := httptest.NewRecorder()
+	m.HandleLogin(rec, r)
+	return rec
+}
+
+// sessionCookieValue returns the session token the response issued, or "" if it
+// issued none.
+func sessionCookieValue(t *testing.T, m *Module, rec *httptest.ResponseRecorder) string {
+	t.Helper()
+	for _, c := range rec.Result().Cookies() {
+		if c.Name == m.sessionCookie() {
+			return c.Value
+		}
+	}
+	return ""
+}
+
+func TestLoginSignsInWithTheRightPassword(t *testing.T) {
+	m := moduleWithAdmin(t)
+
+	rec := postLogin(m, "203.0.113.7:5000", "admin", testPassword)
+
+	if rec.Code != http.StatusSeeOther || rec.Header().Get("Location") != "/" {
+		t.Fatalf("status = %d, Location = %q; want a redirect to /", rec.Code, rec.Header().Get("Location"))
+	}
+	token := sessionCookieValue(t, m, rec)
+	if token == "" {
+		t.Fatal("no session cookie was issued")
+	}
+	name, ok := m.sessions.Lookup(token)
+	if !ok || name != "admin" {
+		t.Fatalf("the cookie's session resolves to %q, %t; want admin", name, ok)
+	}
+}
+
+// A refused sign-in must not say which half was wrong: the panel is public, and
+// distinguishable answers would turn the form into a list of usernames.
+func TestLoginRefusesBadCredentialsWithoutSayingWhy(t *testing.T) {
+	m := moduleWithAdmin(t)
+
+	bodies := make(map[string]string, 2)
+	for name, creds := range map[string][2]string{
+		"wrong password": {"admin", "not-the-password"},
+		"unknown user":   {"nobody", testPassword},
+	} {
+		rec := postLogin(m, "203.0.113.7:5000", creds[0], creds[1])
+		if rec.Code != http.StatusUnauthorized {
+			t.Errorf("%s: status = %d, want 401", name, rec.Code)
+		}
+		if got := sessionCookieValue(t, m, rec); got != "" {
+			t.Errorf("%s: a session cookie was issued: %q", name, got)
+		}
+		bodies[name] = rec.Body.String()
+	}
+	if bodies["wrong password"] != bodies["unknown user"] {
+		t.Error("the two refusals differ, so the form tells an attacker which usernames exist")
+	}
+}
+
+// The lockout is what makes online guessing pointless, so it has to hold even
+// for the request that finally carries the right password — and it has to be
+// scoped to the address that spent the attempts.
+func TestLoginLocksOutAfterTooManyAttempts(t *testing.T) {
+	m := moduleWithAdmin(t)
+	const attacker = "203.0.113.7:5000"
+
+	for i := 0; i < 10; i++ {
+		if rec := postLogin(m, attacker, "admin", "guess"); rec.Code != http.StatusUnauthorized {
+			t.Fatalf("attempt %d: status = %d, want 401 (still under the limit)", i+1, rec.Code)
+		}
+	}
+
+	rec := postLogin(m, attacker, "admin", testPassword)
+	if rec.Code != http.StatusTooManyRequests {
+		t.Errorf("status = %d, want 429; the lockout was bypassed by guessing right", rec.Code)
+	}
+	if got := sessionCookieValue(t, m, rec); got != "" {
+		t.Errorf("a locked-out request was signed in: %q", got)
+	}
+
+	if rec := postLogin(m, "198.51.100.9:5000", "admin", testPassword); rec.Code != http.StatusSeeOther {
+		t.Errorf("another address got %d; one guesser locked out the whole internet", rec.Code)
+	}
+}
+
+// Before the first administrator exists there is nothing to sign in as, so the
+// form is replaced by a pointer to the setup link rather than a password box
+// that can never succeed.
+func TestLoginPointsAtSetupBeforeTheFirstAdministrator(t *testing.T) {
+	m := testModule(t, false)
+
+	rec := httptest.NewRecorder()
+	m.HandleLogin(rec, httptest.NewRequest(http.MethodGet, "http://panel.example.com/login", nil))
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200", rec.Code)
+	}
+	body := rec.Body.String()
+	if !strings.Contains(body, "No administrator has been created yet") {
+		t.Errorf("the login page does not point at the setup link:\n%s", body)
+	}
+	if strings.Contains(body, `name="password"`) {
+		t.Errorf("the login page offers a password field with no account to use it:\n%s", body)
+	}
+}
+
+// getSetup performs the GET the operator's browser makes when it follows the
+// one-time link.
+func getSetup(m *Module, token string) *httptest.ResponseRecorder {
+	rec := httptest.NewRecorder()
+	m.HandleSetup(rec, httptest.NewRequest(http.MethodGet, "http://panel.example.com/setup/"+token, nil))
+	return rec
+}
+
+func postSetup(m *Module, token string, form url.Values) *httptest.ResponseRecorder {
+	r := httptest.NewRequest(http.MethodPost, "http://panel.example.com/setup/"+token,
+		strings.NewReader(form.Encode()))
+	r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	rec := httptest.NewRecorder()
+	m.HandleSetup(rec, r)
+	return rec
+}
+
+func setupForm(username, password, confirm string) url.Values {
+	return url.Values{
+		"username":         {username},
+		"password":         {password},
+		"password_confirm": {confirm},
+	}
+}
+
+// The setup link creates the first global administrator and then stops
+// existing: the persistent fact is the user row, so the link is dead after a
+// restart too, not only for the process that served it.
+func TestSetupCreatesTheFirstAdministratorAndThenCloses(t *testing.T) {
+	m := testModule(t, false)
+	token, ok := m.setup.activeToken()
+	if !ok {
+		t.Fatal("no setup token on a panel with no users")
+	}
+
+	if rec := getSetup(m, token); rec.Code != http.StatusOK {
+		t.Fatalf("GET the setup link = %d, want the form", rec.Code)
+	}
+
+	rec := postSetup(m, token, setupForm("operator", "a-long-enough-password", "a-long-enough-password"))
+	if rec.Code != http.StatusSeeOther || rec.Header().Get("Location") != "/login" {
+		t.Fatalf("status = %d, Location = %q; want a redirect to /login", rec.Code, rec.Header().Get("Location"))
+	}
+
+	u, err := m.store.GetUserByUsername("operator")
+	if err != nil {
+		t.Fatalf("the administrator was not created: %v", err)
+	}
+	if u.Role != RoleGlobal {
+		t.Errorf("the first administrator has role %q, want global", u.Role)
+	}
+	if err := bcrypt.CompareHashAndPassword([]byte(u.PasswordHash), []byte("a-long-enough-password")); err != nil {
+		t.Errorf("the stored hash does not match the password that was set: %v", err)
+	}
+
+	if rec := getSetup(m, token); rec.Code != http.StatusNotFound {
+		t.Errorf("the setup link still answers %d after setup completed, want 404", rec.Code)
+	}
+	if rec := postSetup(m, token, setupForm("second", "a-long-enough-password", "a-long-enough-password")); rec.Code != http.StatusNotFound {
+		t.Errorf("a second administrator could be created through the setup link (%d)", rec.Code)
+	}
+}
+
+// A token that is wrong, or one that has aged out and been replaced, is not a
+// hint that setup exists: both answer 404, the same as any unknown path.
+func TestSetupRejectsAWrongOrExpiredToken(t *testing.T) {
+	m := testModule(t, false)
+	token, ok := m.setup.activeToken()
+	if !ok {
+		t.Fatal("no setup token on a panel with no users")
+	}
+
+	if rec := getSetup(m, token+"x"); rec.Code != http.StatusNotFound {
+		t.Errorf("a wrong token answered %d, want 404", rec.Code)
+	}
+
+	expireSetupToken(m)
+
+	if rec := getSetup(m, token); rec.Code != http.StatusNotFound {
+		t.Errorf("the expired token still opens setup (%d)", rec.Code)
+	}
+	fresh, _ := m.setup.activeToken()
+	if fresh == token {
+		t.Fatal("the expired token was not replaced")
+	}
+	if rec := getSetup(m, fresh); rec.Code != http.StatusOK {
+		t.Errorf("the reissued token does not open setup (%d)", rec.Code)
+	}
+}
+
+// The first account is the one that can never be locked out of the panel from
+// outside, so the rules that apply to every other user apply here too — before
+// anything is written.
+func TestSetupRejectsCredentialsItWouldNotAcceptLater(t *testing.T) {
+	for name, form := range map[string]url.Values{
+		"username too short": setupForm("op", "a-long-enough-password", "a-long-enough-password"),
+		"username not ASCII": setupForm("оператор", "a-long-enough-password", "a-long-enough-password"),
+		"passwords differ":   setupForm("operator", "a-long-enough-password", "a-long-enough-passwerd"),
+		"password too short": setupForm("operator", "short", "short"),
+		"no password at all": setupForm("operator", "", ""),
+		"no username at all": setupForm("", "a-long-enough-password", "a-long-enough-password"),
+	} {
+		m := testModule(t, false)
+		token, _ := m.setup.activeToken()
+
+		rec := postSetup(m, token, form)
+
+		if rec.Code != http.StatusBadRequest {
+			t.Errorf("%s: status = %d, want 400", name, rec.Code)
+		}
+		if exists, err := m.store.UserExists(); err != nil || exists {
+			t.Errorf("%s: an administrator was created anyway (err=%v)", name, err)
+		}
+		if rec := getSetup(m, token); rec.Code != http.StatusOK {
+			t.Errorf("%s: the setup link was burned by a rejected form (%d)", name, rec.Code)
+		}
+	}
+}
+
+// Setup is unauthenticated by definition, so the only thing between the token
+// and an offline guesser is the limiter in front of it.
+func TestSetupIsRateLimited(t *testing.T) {
+	m := testModule(t, false)
+
+	for i := 0; i < 10; i++ {
+		if rec := getSetup(m, "wrong-token"); rec.Code != http.StatusNotFound {
+			t.Fatalf("attempt %d: status = %d, want 404 (still under the limit)", i+1, rec.Code)
+		}
+	}
+	if rec := getSetup(m, "wrong-token"); rec.Code != http.StatusTooManyRequests {
+		t.Errorf("status = %d, want 429 after the eleventh attempt", rec.Code)
+	}
+}
+
+// expireSetupToken ages the current token out, the state the panel reaches when
+// nobody follows the link within setupTokenTTL.
+func expireSetupToken(m *Module) {
+	m.setup.mu.Lock()
+	defer m.setup.mu.Unlock()
+	m.setup.expiresAt = m.setup.expiresAt.Add(-2 * setupTokenTTL)
+}

internal/web/auth/middleware.go

@@ -44,15 +44,3 @@ func CurrentUser(r *http.Request) string {
 	}
 	return ""
 }
-
-// RequireGlobal wraps a handler that only global administrators may reach.
-func RequireGlobal(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		p, ok := CurrentPrincipal(r.Context())
-		if !ok || !p.IsGlobal() {
-			http.NotFound(w, r)
-			return
-		}
-		next.ServeHTTP(w, r)
-	})
-}

internal/web/auth/principal.go

@@ -10,8 +10,8 @@ import (
 type ctxKey int
 
 const (
-	usernameKey   ctxKey = 0
-	principalKey  ctxKey = 1
+	usernameKey  ctxKey = 0
+	principalKey ctxKey = 1
 )
 
 // Role is a panel user's access level.

internal/web/auth/ratelimit.go

@@ -5,11 +5,14 @@ import (
 	"time"
 )
 
+const defaultMaxBuckets = 4096
+
 // rateLimiter is a simple fixed-window per-key counter used to throttle the
 // setup and login routes (security.md). Keys are client IPs.
 type rateLimiter struct {
-	max    int
-	window time.Duration
+	max        int
+	window     time.Duration
+	maxBuckets int
 
 	mu      sync.Mutex
 	buckets map[string]*rlBucket
@@ -22,12 +25,25 @@ type rlBucket struct {
 
 func newRateLimiter(max int, window time.Duration) *rateLimiter {
 	return &rateLimiter{
-		max:     max,
-		window:  window,
-		buckets: make(map[string]*rlBucket),
+		max:        max,
+		window:     window,
+		maxBuckets: defaultMaxBuckets,
+		buckets:    make(map[string]*rlBucket),
 	}
 }
 
+func (r *rateLimiter) startSweeper() {
+	go func() {
+		ticker := time.NewTicker(r.window)
+		defer ticker.Stop()
+		for range ticker.C {
+			r.mu.Lock()
+			r.sweep(time.Now())
+			r.mu.Unlock()
+		}
+	}()
+}
+
 func (r *rateLimiter) Allow(key string) bool {
 	now := time.Now()
 	r.mu.Lock()
@@ -35,6 +51,7 @@ func (r *rateLimiter) Allow(key string) bool {
 
 	b := r.buckets[key]
 	if b == nil || now.After(b.windowEnds) {
+		r.makeRoom(now)
 		r.buckets[key] = &rlBucket{count: 1, windowEnds: now.Add(r.window)}
 		r.sweep(now)
 		return true
@@ -46,6 +63,32 @@ func (r *rateLimiter) Allow(key string) bool {
 	return true
 }
 
+func (r *rateLimiter) makeRoom(now time.Time) {
+	if r.maxBuckets <= 0 || len(r.buckets) < r.maxBuckets {
+		return
+	}
+	r.sweep(now)
+	for len(r.buckets) >= r.maxBuckets {
+		r.evictOldest()
+	}
+}
+
+func (r *rateLimiter) evictOldest() {
+	var oldestKey string
+	var oldestEnds time.Time
+	first := true
+	for k, b := range r.buckets {
+		if first || b.windowEnds.Before(oldestEnds) {
+			oldestKey = k
+			oldestEnds = b.windowEnds
+			first = false
+		}
+	}
+	if oldestKey != "" {
+		delete(r.buckets, oldestKey)
+	}
+}
+
 func (r *rateLimiter) sweep(now time.Time) {
 	for k, b := range r.buckets {
 		if now.After(b.windowEnds) {

internal/web/auth/ratelimit_test.go

@@ -0,0 +1,125 @@
+package auth
+
+import (
+	"testing"
+	"time"
+)
+
+// The limiter is what stands between the public login form and an unlimited
+// guessing rate (security.md), so the ceiling has to be exact: the configured
+// number of attempts go through and the next one does not, however often it is
+// repeated.
+func TestRateLimiterStopsAtTheCeiling(t *testing.T) {
+	r := newRateLimiter(3, time.Minute)
+
+	for i := 1; i <= 3; i++ {
+		if !r.Allow("203.0.113.7") {
+			t.Fatalf("attempt %d of 3 was refused before the ceiling", i)
+		}
+	}
+	for i := 4; i <= 6; i++ {
+		if r.Allow("203.0.113.7") {
+			t.Fatalf("attempt %d passed after the ceiling of 3", i)
+		}
+	}
+}
+
+// Buckets are per key, so one locked-out address must not lock out the rest of
+// the internet — a shared counter would turn a single guesser into a denial of
+// service against every operator.
+func TestRateLimiterKeepsKeysApart(t *testing.T) {
+	r := newRateLimiter(1, time.Minute)
+
+	if !r.Allow("203.0.113.7") || r.Allow("203.0.113.7") {
+		t.Fatal("the first key did not use up its single attempt")
+	}
+	if !r.Allow("198.51.100.9") {
+		t.Fatal("a second address was refused because another one was locked out")
+	}
+}
+
+// The window is fixed, not sliding: once it has elapsed the count starts again
+// from zero rather than being carried over. Time is moved by ageing the bucket
+// instead of sleeping, so the test states the boundary rather than approaching
+// it.
+func TestRateLimiterReopensAfterTheWindow(t *testing.T) {
+	r := newRateLimiter(2, time.Minute)
+	r.Allow("203.0.113.7")
+	r.Allow("203.0.113.7")
+	if r.Allow("203.0.113.7") {
+		t.Fatal("the ceiling was not reached")
+	}
+
+	expire(r, "203.0.113.7")
+
+	if !r.Allow("203.0.113.7") {
+		t.Fatal("the key is still locked out after its window ended")
+	}
+	if !r.Allow("203.0.113.7") {
+		t.Fatal("the new window did not start from an empty count")
+	}
+	if r.Allow("203.0.113.7") {
+		t.Fatal("the new window allowed more than the ceiling")
+	}
+}
+
+// Every address that ever tried to sign in gets a bucket, and the only thing
+// that removes the finished ones is the sweep on a new window. It runs on the
+// key that triggered it as well as on the others, so a long-running panel does
+// not accumulate a bucket per source address for ever.
+func TestRateLimiterSweepsFinishedBuckets(t *testing.T) {
+	r := newRateLimiter(2, time.Minute)
+	for _, key := range []string{"203.0.113.7", "198.51.100.9"} {
+		r.Allow(key)
+		expire(r, key)
+	}
+	r.Allow("192.0.2.5") // still inside its window
+
+	r.Allow("203.0.113.7") // new window for this key: sweeps the rest
+
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if _, ok := r.buckets["198.51.100.9"]; ok {
+		t.Error("a bucket whose window ended is still held")
+	}
+	for _, key := range []string{"203.0.113.7", "192.0.2.5"} {
+		if _, ok := r.buckets[key]; !ok {
+			t.Errorf("the sweep dropped %s, whose window is still open", key)
+		}
+	}
+}
+
+// expire moves a key's window into the past, the same state it would reach by
+// waiting for the window to elapse.
+func expire(r *rateLimiter, key string) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if b := r.buckets[key]; b != nil {
+		b.windowEnds = time.Now().Add(-time.Second)
+	}
+}
+
+// A long-running panel can see many unique client addresses. Finished buckets
+// are swept on every new window, and a hard cap evicts the oldest when the map
+// would otherwise grow without bound.
+func TestRateLimiterCapsBucketCount(t *testing.T) {
+	r := newRateLimiter(1, time.Minute)
+	r.maxBuckets = 3
+
+	for i, key := range []string{"203.0.113.7", "198.51.100.9", "192.0.2.5"} {
+		if !r.Allow(key) {
+			t.Fatalf("attempt %d for %s was refused under the cap", i+1, key)
+		}
+		expire(r, key)
+	}
+
+	if !r.Allow("203.0.113.8") {
+		t.Fatal("a fourth address was refused even though room was made")
+	}
+
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if len(r.buckets) > 3 {
+		t.Fatalf("bucket count = %d, want at most 3", len(r.buckets))
+	}
+}

internal/web/auth/session.go

@@ -41,17 +41,22 @@ func hashToken(token string) string {
 	return hex.EncodeToString(sum[:])
 }
 
-// Create issues a new session for username and returns its token.
-func (s *sessionStore) Create(username string) string {
+// Create issues a new session for username and returns its token. It fails
+// closed: if the row cannot be written the caller gets an error and must not
+// hand out a cookie, because a token that is not in the database looks like a
+// signed-in browser while every request it makes bounces back to /login.
+func (s *sessionStore) Create(username string) (string, error) {
 	token := randomToken(32)
 	now := time.Now()
 	if err := s.store.CreateSession(hashToken(token), username, now.Add(s.idle)); err != nil {
-		logf("panel: session: create failed: %v", err)
+		return "", err
 	}
+	// Pruning is housekeeping: the new session is already valid, so a failure
+	// here is logged and does not fail the login.
 	if _, err := s.store.DeleteExpiredSessions(now); err != nil {
 		logf("panel: session: prune expired failed: %v", err)
 	}
-	return token
+	return token, nil
 }
 
 // Lookup returns the session username for a token if it exists and is

internal/web/auth/setup.go

@@ -16,8 +16,9 @@ const setupTokenTTL = 10 * time.Minute
 
 // setupManager owns the one-time administrator setup token. The token itself is
 // ephemeral (regenerated on restart or expiry) and lives only in memory; the
-// persistent "setup complete" fact is the presence of the admin row in the
-// store, so once that exists the token is gone for good (security.md).
+// persistent "setup complete" fact is the presence of any row in the store's
+// users table (`store.UserExists`), so once the first global administrator is
+// created the token is gone for good (security.md).
 type setupManager struct {
 	store     *store.Store
 	hostname  string

internal/web/handlers/authz.go

@@ -32,17 +32,7 @@ func (h *Handlers) assignedDomains(p auth.Principal) ([]store.Domain, error) {
 	if p.IsGlobal() {
 		return h.store.ListDomains()
 	}
-	all, err := h.store.ListDomains()
-	if err != nil {
-		return nil, err
-	}
-	var out []store.Domain
-	for _, d := range all {
-		if p.CanAccessDomain(d.ID) {
-			out = append(out, d)
-		}
-	}
-	return out, nil
+	return h.store.ListDomainsForUser(p.ID)
 }
 
 func domainNameSet(domains []store.Domain) map[string]bool {

internal/web/handlers/authz_test.go

@@ -0,0 +1,125 @@
+package handlers
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/mixeme/selfpost/internal/web/auth"
+)
+
+// route is one entry of the authenticated mux, named the way web.go registers
+// it so a route added there without a guard is visible as a missing case here.
+type route struct {
+	method  string
+	target  string
+	handler func(*Handlers) http.HandlerFunc
+	// pathValues are the {id}-style segments the router would have bound.
+	pathValues map[string]string
+}
+
+// globalOnlyRoutes is every page and action that only a global administrator
+// may reach: the panel's users, the whole-server backup and domain import, the
+// machine-wide status and log views, and the domain lifecycle. A domain
+// administrator is answered 404 rather than 403 so the panel does not confirm
+// that the page exists (security.md).
+var globalOnlyRoutes = []route{
+	{"GET", "/users", func(h *Handlers) http.HandlerFunc { return h.HandleUsers }, nil},
+	{"GET", "/users/new", func(h *Handlers) http.HandlerFunc { return h.HandleUserNew }, nil},
+	{"POST", "/users/new", func(h *Handlers) http.HandlerFunc { return h.HandleUserNew }, nil},
+	{"GET", "/users/1", func(h *Handlers) http.HandlerFunc { return h.HandleUserEdit }, map[string]string{"uid": "1"}},
+	{"POST", "/users/1", func(h *Handlers) http.HandlerFunc { return h.HandleUserEdit }, map[string]string{"uid": "1"}},
+	{"GET", "/users/1/delete", func(h *Handlers) http.HandlerFunc { return h.HandleUserDeleteConfirm }, map[string]string{"uid": "1"}},
+	{"POST", "/users/1/delete", func(h *Handlers) http.HandlerFunc { return h.HandleUserDelete }, map[string]string{"uid": "1"}},
+
+	{"GET", "/backup", func(h *Handlers) http.HandlerFunc { return h.HandleBackupPage }, nil},
+	{"POST", "/backup", func(h *Handlers) http.HandlerFunc { return h.HandleBackup }, nil},
+	{"POST", "/domains/import", func(h *Handlers) http.HandlerFunc { return h.HandleImportDomain }, nil},
+
+	{"GET", "/status", func(h *Handlers) http.HandlerFunc { return h.HandleStatus }, nil},
+	{"GET", "/status/fragment", func(h *Handlers) http.HandlerFunc { return h.HandleStatusFragment }, nil},
+	{"POST", "/status/recheck", func(h *Handlers) http.HandlerFunc { return h.HandleStatusRecheck }, nil},
+
+	{"GET", "/mail-queue", func(h *Handlers) http.HandlerFunc { return h.HandleMailQueue }, nil},
+	{"GET", "/mail-queue/body", func(h *Handlers) http.HandlerFunc { return h.HandleMailQueueBody }, nil},
+	{"GET", "/system-log", func(h *Handlers) http.HandlerFunc { return h.HandleSystemLog }, nil},
+	{"GET", "/system-log/body", func(h *Handlers) http.HandlerFunc { return h.HandleSystemLogBody }, nil},
+
+	{"POST", "/domains", func(h *Handlers) http.HandlerFunc { return h.HandleAddDomain }, nil},
+	{"GET", "/domains/1/delete", func(h *Handlers) http.HandlerFunc { return h.HandleDeleteConfirm }, map[string]string{"id": "1"}},
+	{"POST", "/domains/1/delete", func(h *Handlers) http.HandlerFunc { return h.HandleDeleteDomain }, map[string]string{"id": "1"}},
+	{"POST", "/reload", func(h *Handlers) http.HandlerFunc { return h.HandleReload }, nil},
+}
+
+// A domain administrator has an account on the panel, so authentication is not
+// what keeps them off these pages — the per-handler role check is. Each of them
+// is reached here with a valid session for a principal that owns a domain, the
+// case the send-log leak (P0, code-review.md) showed is easy to get wrong.
+func TestGlobalOnlyRoutesAnswerADomainAdmin404(t *testing.T) {
+	h, domains := serverWithTwoDomains(t)
+	p := domainAdmin(t, h.store, "global-only", domains["first.example.ru"].ID)
+
+	for _, rt := range globalOnlyRoutes {
+		rec := call(h, rt, p)
+		if rec.Code != http.StatusNotFound {
+			t.Errorf("%s %s as a domain administrator = %d, want 404:\n%s",
+				rt.method, rt.target, rec.Code, rec.Body.String())
+		}
+	}
+}
+
+// The same 404 covers a request that carries no principal at all: the auth
+// middleware normally redirects those, but a handler must not depend on
+// middleware it cannot see for the role it enforces itself.
+func TestGlobalOnlyRoutesAnswerAnUnknownPrincipal404(t *testing.T) {
+	h, _ := serverWithTwoDomains(t)
+
+	for _, rt := range globalOnlyRoutes {
+		rec := httptest.NewRecorder()
+		req := httptest.NewRequest(rt.method, rt.target, nil)
+		for k, v := range rt.pathValues {
+			req.SetPathValue(k, v)
+		}
+		rt.handler(h)(rec, req)
+		if rec.Code != http.StatusNotFound {
+			t.Errorf("%s %s with no principal = %d, want 404", rt.method, rt.target, rec.Code)
+		}
+	}
+}
+
+// The 404s above would also pass if a handler were broken into always returning
+// one, so at least the two pages that need nothing but the store and the view
+// have to be shown opening for a global administrator.
+func TestGlobalOnlyRoutesOpenForAGlobalAdministrator(t *testing.T) {
+	h, _ := serverWithTwoDomains(t)
+
+	for _, target := range []string{"/users", "/backup"} {
+		rt := getRoute(t, target)
+		if rec := call(h, rt, globalPrincipal); rec.Code != http.StatusOK {
+			t.Errorf("GET %s as a global administrator = %d, want 200:\n%s",
+				target, rec.Code, rec.Body.String())
+		}
+	}
+}
+
+func getRoute(t *testing.T, target string) route {
+	t.Helper()
+	for _, rt := range globalOnlyRoutes {
+		if rt.method == http.MethodGet && rt.target == target {
+			return rt
+		}
+	}
+	t.Fatalf("no GET %s among the global-only routes", target)
+	return route{}
+}
+
+func call(h *Handlers, rt route, p auth.Principal) *httptest.ResponseRecorder {
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(rt.method, rt.target, nil)
+	req = auth.RequestWithPrincipal(req, p)
+	for k, v := range rt.pathValues {
+		req.SetPathValue(k, v)
+	}
+	rt.handler(h)(rec, req)
+	return rec
+}