Files
selfpost/docs/plans/dmarc-reports.md
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mix 0730b2090e release: 1.3.0: 1.3.0-1.3.1: security pass, queue persist, full backup layout
[1.3.0]
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
  - docs: agreed roadmap item **queue-retries** — show this Postfix's retry
Security:
  - The independent security review of the send-log authorization and
Fixed:
  - test (e2e): send-log status scrapers follow the badge markup in
  - security (panel): the Deliveries list is scoped to a domain administrator's
  - mail (level-2 rate limit): the ceiling is no longer overshot by messages that
  - panel (sign-in): a session that cannot be written to the database no longer
  - panel (applications): deleting an application removes its SASL credentials
  … (2 more in CHANGELOG)
Changed:
  - docs: operator and as-built docs aligned with the code after a full
  - docs: [guide.md](docs/guide.md) reorganised into **Installation**, **Instance
  - docs: the 2026-08-13 full-tree review plan is complete — every phase (P0–P7)
  - licence: [NOTICE](NOTICE) tells modifiers to update `SourceURL` in
  - ci: the release image is published only for a **published** GitHub Release
  … (9 more in CHANGELOG)
[1.3.1]
Retry policy in the panel, persistent Postfix queue, and self-contained full backups. Mail queue and delivery history show this Postfix's first retry, backoff cap, and queue lifetime. Deferred mail survives container recreate. Full backups now archive `data/`, compose, `.env`, and `certs/`; the archive layout breaks 1.3.0 flat backups (unpack those with `tar xzf backup.tar.gz -C ./data` as before). Upgrading from 1.3.0 is a tag bump; no schema migration.
Added:
  - Mail queue and a delivery's history show this Postfix's retry policy
  - docs: **Plan checklists** in [development.md](docs/development.md) — format,
  - docs: **Implementation checklists** with model routing in
  - docs: roadmap candidates **send-log-retention** (panel Settings for delivery
  - Postfix queue under `/data/postfix/queue` — deferred and active mail survive
  … (1 more in CHANGELOG)
Changed:
  - **Breaking:** full-backup archive layout — paths are prefixed with `data/`;
  - docs: operator guide, architecture, security, and backup UI updated for
  - docs: HTML mockups for a full panel UI refresh
Changed:
  - docs: panel UI mockups after review — Status restored to live readings
  - docs: panel UI design system and mockups rebuilt as separate pages
  - docs: panel UI mockups — add-domain sits in the list card (Domains and
Fixed:
  - ci (GHCR): per-arch package tags (`X.Y.Z-amd64`, `X.Y.Z-arm64`) are dropped

Squashed CHANGELOG sections: [1.3.0], [1.3.1].

Full detail: CHANGELOG.md (1.3.0, 1.3.1).
2026-09-22 15:24:52 +03:00

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Markdown

# Plan: dmarc-reports
**Status:** candidate
---
## Goal
SelfPost **receives** DMARC aggregate reports on SMTP, parses them inside the
image, and **shows summaries in the panel** — pass/fail by source, hints when
`tighten p=` is reasonable. No external DMARC SaaS and no IMAP workflow for the
operator.
## Scope
**In:**
- Inbound SMTP for configured report addresses only (not a general backup-MX).
- 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 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:**
- Forensic reports (`ruf=`).
- Full dashboards, APIs, email alerting.
- Mailboxes for people (IMAP/POP3/webmail).
## Architecture (sketch)
1. Receiving MTAs → SMTP to SelfPost (hub MX).
2. Postfix virtual alias or dedicated listener → panel ingest worker.
3. Parse XML → `dmarc_reports` table (domain, reporter, counts, date).
4. Panel reads SQLite; links from domain DNS card.
May share port-25 plumbing with [inbound-relay.md](inbound-relay.md) but must
remain a separate, opt-in feature that does not forward mail upstream.
## Done when
- Operator can point `rua=` at an address SelfPost accepts and see parsed
summaries in the panel within one reporting cycle.
- With the feature off, outbound-only behaviour is unchanged.
- Documented in [guide.md](../guide.md); migrations are backward-compatible.
## Risks
- Attack surface of accepting mail (mitigate: strict recipient allow-list).
- Report volume and retention (mitigate: caps + pruning).
## Implementation checklist
Target version cut: **`1.7.0`** (MINOR). One commit per step; code only after
roadmap status is **agreed**. Expand the sketch sections above before step 1
if still thin. See [development.md](../development.md) § Plan checklists.
- [ ] Expand plan: ingest path, `dmarc_reports` schema, retention caps — **Sonnet**
- [ ] Opt-in inbound SMTP for report addresses only (allow-list) — **Opus**
- [ ] Worker: gzip/XML parse → SQLite — **Opus**
- [ ] Panel: domain roll-up + parsed report (panel-ui mockups) — **Sonnet**
- [ ] Tie-in `dmarc_report_email` / `domains.dmarc_rua` — **Sonnet**
- [ ] Tests and [guide.md](../guide.md) — **Sonnet**
- [ ] Security review ingest path — **Fable**
- [ ] `go vet`, `go test` on touched packages — **Haiku**