From 9d6d89c79d6072962854c0f9ada772dccf0db497 Mon Sep 17 00:00:00 2001
From: mixeme <mix.public@ya.ru>
Date: Sat, 8 Aug 2026 11:35:27 +0300
Subject: [PATCH] fix(logtail): keep mail.log in /data and reconcile stuck rows
 (v1.x closure phase 2)

Move the delivery log from the ephemeral /var/log to /data/log/mail.log so
the lines that resolve a queued send-log row survive a container recreate.
postlogd writes it as postfix, the panel reads it through the selfpost group
(dir 2750, file 0640, normalised every start); backups exclude log/.

Close the residual gap with a queue sweep: rows queued for over two minutes
whose id postqueue -p no longer lists are marked bounced. The sweep waits
until the tailer has read the log to its end and does nothing when the queue
cannot be listed, so a message in flight is never touched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
---
 CHANGELOG.md                     |  24 +++++++
 README.md                        |   3 +-
 build/entrypoint.sh              |  23 ++++++-
 build/logrotate-loop.sh          |  10 +--
 build/logrotate-mail.conf        |  10 ++-
 build/postfix-config.sh          |  10 ++-
 build/supervisord.conf           |   2 +-
 cmd/panel/envdoc_test.go         |   1 +
 cmd/panel/main.go                |   5 +-
 deploy/docker-compose.yml        |   3 +
 docs/architecture.md             |  45 +++++++++----
 docs/guide.md                    |  20 ++++--
 docs/progress.md                 |   3 +-
 docs/roadmap.md                  |  17 +++--
 docs/security.md                 |  25 ++++++--
 docs/v1.x-closure-plan.md        |  39 +++++++-----
 internal/backup/backup.go        |  11 ++--
 internal/backup/backup_test.go   |   9 ++-
 internal/logtail/logtail.go      | 106 +++++++++++++++++++++++++++++--
 internal/logtail/logtail_test.go |  78 +++++++++++++++++++++++
 internal/postfix/queue.go        |  41 ++++++++++++
 internal/postfix/queue_test.go   |  43 +++++++++++++
 internal/store/sendlog.go        |  39 ++++++++++++
 internal/store/sendlog_test.go   |  52 +++++++++++++++
 test/e2e/mail_helpers.go         |   2 +-
 25 files changed, 549 insertions(+), 72 deletions(-)
 create mode 100644 internal/postfix/queue_test.go

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45a4877..371e66c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,8 +28,32 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
   panel's own ok/warn/error/unknown badge vocabulary. A message still queued
   shows the delivery report it is waiting for as a step that has not happened.
 
+### Fixed
+
+- A send-log row could stay `queued` forever after the container was recreated.
+  `mail.log` moved from the ephemeral `/var/log` into the data volume
+  (`/data/log/mail.log`, `./data/log/` on the host), so the delivery lines that
+  resolve a queued row now outlive the container the same way the journal does.
+  `postlogd` writes the file as user `postfix` and the unprivileged panel reads
+  it through the shared `selfpost` group (directory `2750`, file `0640`,
+  re-normalised on every start); logrotate creates each new file the same way.
+  Existing deployments need no action beyond the upgrade — the directory is
+  created on first start — but the log written by the previous image is gone
+  with its container, and the tailer starts the new file from its end.
+- A row whose delivery lines are gone for good is no longer left `queued`
+  indefinitely: every five minutes the tailer compares rows still queued from
+  more than two minutes ago against `postqueue -p`, and marks `bounced` those
+  whose message Postfix no longer holds — it will never report on them again.
+  The sweep waits until the tailer has read the log to its end (on a restart the
+  log itself holds the answer) and does nothing at all if the queue cannot be
+  listed, so a message merely in flight, or a `postqueue` that fails, never
+  closes a row.
+
 ### Changed
 
+- Full backups no longer carry `/data/log`. It is Postfix's raw log plus its
+  fourteen rotated copies — diagnostic output rather than state to restore, and
+  otherwise by far the largest thing in the archive.
 - Monitoring screens (status, mail queue, system log, deliveries) use adaptive
   HTMX polling: 5 s while the operator is active on the page, 30 s when the tab
   is visible but idle, and no requests while the tab is hidden. Scheduling
diff --git a/README.md b/README.md
index 61cb432..bc4fd20 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,8 @@ missing PTR record for you. Details: [Operator guide](docs/guide.md).
 - Docker + Compose v2 on the host
 - A reverse proxy in front of the panel (SelfPost never terminates HTTPS itself)
 - Rough sizing: **1 vCPU**, **512 MB–1 GB RAM**, **8–10 GB disk** (send log and
-  rotated `mail.log` are the main growth drivers)
+  rotated `mail.log` are the main growth drivers; both sit in the `./data`
+  volume, and both are capped — 90 days and 14 files by default)
 
 ### Network and IP
 
diff --git a/build/entrypoint.sh b/build/entrypoint.sh
index 779f92e..b0087a5 100644
--- a/build/entrypoint.sh
+++ b/build/entrypoint.sh
@@ -11,8 +11,10 @@ set -e
 chown panel:panel /data
 # Restored backups or previously-created state may contain panel-owned files
 # under /data; make sure they stay writable without disturbing anything that a
-# later phase deliberately hands to another service.
-find /data -mindepth 1 -maxdepth 1 ! -user panel -exec chown -R panel:panel {} +
+# 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 {} +
 
 # 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
@@ -51,6 +53,23 @@ chown -R panel:selfpost /data/postfix
 chmod 2750 /data/postfix
 chmod 0640 /data/postfix/sender_login_maps
 
+# Delivery log (architecture.md § Log tailer). postlogd writes it as user
+# `postfix`; the panel reads it for the log-tailer and the System log page. It
+# lives under /data — not the ephemeral /var/log — so the delivery lines that
+# resolve a "queued" send-log row survive a container recreate.
+#
+# postlogd creates a missing log itself, but at 0600, which the unprivileged
+# panel cannot read; so create it here (and re-normalise an existing one, plus
+# whatever logrotate left behind) at 0640 owned postfix:selfpost. The setgid
+# directory keeps the shared group on anything created inside it later, and
+# 2750 keeps it group-traversable but not group-writable — logrotate refuses to
+# rotate a log whose directory is writable by a non-root group.
+mkdir -p /data/log
+[ -e /data/log/mail.log ] || : > /data/log/mail.log
+chown -R postfix:selfpost /data/log
+chmod 2750 /data/log
+find /data/log -type f -exec chmod 0640 {} +
+
 # Milter socket directories (spec 5 p.3, 7.3). Postfix (user `postfix`) must
 # actually CONNECT to both milter sockets — OpenDKIM's and the panel's
 # journal-milter — not just probe them at start-up. The sockets are
diff --git a/build/logrotate-loop.sh b/build/logrotate-loop.sh
index e016a6c..c934d21 100644
--- a/build/logrotate-loop.sh
+++ b/build/logrotate-loop.sh
@@ -1,13 +1,13 @@
 #!/bin/sh
-# Periodic logrotate for /var/log/mail.log (spec 9, 10). Rotation renames the
-# file, recreates it (`create 0644 root root`, matching a cold container
+# Periodic logrotate for /data/log/mail.log (spec 9, 10). Rotation renames the
+# file, recreates it (`create 0640 postfix selfpost`, matching a cold container
 # start), then runs `postfix reload` (the same mechanism `postfix logrotate`
 # uses): postlogd keeps writing to the renamed inode until reload, and the
 # panel's log-tailer holds its own descriptor on that inode, so nothing
 # written before the reload is lost. `create` (rather than `nocreate`) matters
-# here beyond timing: a reload-triggered recreate lands the file at 0600,
-# which the unprivileged panel process cannot read — confirmed on a live
-# container — so logrotate must be the one to create it at 0644.
+# here beyond timing: a postlogd-triggered recreate lands the file at 0600
+# owned by postfix, which the unprivileged panel process cannot read —
+# confirmed on a live container — so logrotate must be the one to create it.
 #
 # logrotate itself only rotates once the configured "daily" period has elapsed
 # (tracked in /var/lib/logrotate/status), so it is safe to invoke this more
diff --git a/build/logrotate-mail.conf b/build/logrotate-mail.conf
index 5f4e402..9912d40 100644
--- a/build/logrotate-mail.conf
+++ b/build/logrotate-mail.conf
@@ -1,11 +1,17 @@
-/var/log/mail.log {
+# The delivery log lives under the persistent /data, not the ephemeral
+# /var/log, so the lines that resolve a "queued" send-log row outlive the
+# container (architecture.md § Log tailer). Path and ownership match
+# build/postfix-config.sh (maillog_file) and build/entrypoint.sh: postlogd
+# writes it as user postfix, the unprivileged panel reads it through the shared
+# selfpost group, hence create 0640 postfix selfpost rather than 0644 root root.
+/data/log/mail.log {
 	daily
 	rotate 14
 	missingok
 	notifempty
 	compress
 	delaycompress
-	create 0644 root root
+	create 0640 postfix selfpost
 	postrotate
 		/usr/sbin/postfix reload
 	endscript
diff --git a/build/postfix-config.sh b/build/postfix-config.sh
index 61578f4..3bd634e 100644
--- a/build/postfix-config.sh
+++ b/build/postfix-config.sh
@@ -45,10 +45,18 @@ SASLDB_PATH="${SASL_DB_PATH:-/data/sasl/sasldb2}"
 # when a client library needs STARTTLS on 587 instead of implicit TLS on 465).
 SUBMISSION_ENABLE="${SUBMISSION_ENABLE:-false}"
 
+# Delivery log, written by postlogd and read by the panel's log-tailer. It lives
+# under the persistent /data (not the ephemeral /var/log) so the delivery lines
+# for messages still marked "queued" survive a container recreate — without
+# them those rows could never be resolved (architecture.md § Log tailer). The
+# default must match cmd/panel/main.go's MAIL_LOG; entrypoint.sh creates the
+# directory and the file with the ownership postlogd writes and the panel reads.
+MAIL_LOG_PATH="${MAIL_LOG:-/data/log/mail.log}"
+
 # --- main.cf -----------------------------------------------------------------
 postconf -e \
 	"myhostname=${HOSTNAME_VALUE}" \
-	"maillog_file=/var/log/mail.log" \
+	"maillog_file=${MAIL_LOG_PATH}" \
 	"mydestination=" \
 	"relayhost=" \
 	"inet_interfaces=all" \
diff --git a/build/supervisord.conf b/build/supervisord.conf
index 9b15635..99b3234 100644
--- a/build/supervisord.conf
+++ b/build/supervisord.conf
@@ -103,7 +103,7 @@ stdout_logfile_maxbytes=0
 stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 
-; Periodic logrotate for /var/log/mail.log (spec 9, 10: daily, 7-14 files kept
+; 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.
 [program:logrotate]
diff --git a/cmd/panel/envdoc_test.go b/cmd/panel/envdoc_test.go
index 1e580c4..2cb1b6a 100644
--- a/cmd/panel/envdoc_test.go
+++ b/cmd/panel/envdoc_test.go
@@ -82,6 +82,7 @@ var buildScriptKeys = []string{
 	"RATE_LIMIT_WINDOW_SECONDS",
 	"OPENDKIM_SOCKET",
 	"JOURNAL_MILTER_SOCKET",
+	"MAIL_LOG",
 	"POSTFIX_SENDER_LOGIN_MAPS",
 	"SASL_DB_PATH",
 	"SUBMISSION_ENABLE",
diff --git a/cmd/panel/main.go b/cmd/panel/main.go
index a2ea695..dfae2f1 100644
--- a/cmd/panel/main.go
+++ b/cmd/panel/main.go
@@ -81,7 +81,10 @@ func loadConfig() config {
 	return config{
 		httpAddr:      envDefault("PANEL_HTTP_ADDR", ":8080"),
 		journalSocket: envDefault("JOURNAL_MILTER_SOCKET", "/run/selfpost/journal.sock"),
-		mailLog:       envDefault("MAIL_LOG", "/var/log/mail.log"),
+		// Postfix's delivery log, under /data so the lines that resolve a
+		// "queued" send-log row outlive the container. The default must match
+		// maillog_file in build/postfix-config.sh.
+		mailLog: envDefault("MAIL_LOG", "/data/log/mail.log"),
 		// Send-log retention window (architecture.md § Persistence).
 		// Non-positive/invalid falls back to the 90-day default inside the
 		// log-tailer.
diff --git a/deploy/docker-compose.yml b/deploy/docker-compose.yml
index 3b8e68a..dca15a1 100644
--- a/deploy/docker-compose.yml
+++ b/deploy/docker-compose.yml
@@ -54,6 +54,9 @@ services:
       # All persistent state lives under /data (spec 9): SQLite DB, DKIM keys,
       # sasldb2, sender map, setup token. Back this up (panel button or the
       # selfpost-backup CLI) before you touch it directly.
+      # Postfix's mail.log is here too (./data/log, rotated daily, 14 files
+      # 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: SelfPost only ever reads certificates, never manages them
       # (spec 10 p.2). Point this at wherever your reverse-proxy/certbot
diff --git a/docs/architecture.md b/docs/architecture.md
index 965893e..db44a53 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -94,10 +94,20 @@ Milter chain in Postfix: OpenDKIM (tempfail) then journal (accept on failure).
 
 ### Log tailer and `mail.log` rotation
 
-`mail.log` lives under `/var/log` (not in `/data`). Rotation uses rename +
-`postfix reload` ([build/logrotate-mail.conf](../build/logrotate-mail.conf)), not
-`copytruncate` — the latter can drop `status=sent` lines and leave send-log rows
-stuck at `queued`. After rename, logrotate runs `create 0644 root root` (Postfix
+`mail.log` lives at `/data/log/mail.log` — inside the persistent bind mount, so
+the delivery lines that resolve a `queued` send-log row are not lost when the
+container is recreated. `postlogd` writes it as user `postfix`; the panel reads
+it through the shared `selfpost` group (directory `2750 postfix:selfpost`, file
+`0640`, both normalised on every start by
+[build/entrypoint.sh](../build/entrypoint.sh)). The path is one default in two
+places, `maillog_file` in [build/postfix-config.sh](../build/postfix-config.sh)
+and `MAIL_LOG` in [cmd/panel/main.go](../cmd/panel/main.go). Backups exclude
+`log/`: it is diagnostic output, not state to restore.
+
+Rotation uses rename + `postfix reload`
+([build/logrotate-mail.conf](../build/logrotate-mail.conf)), not `copytruncate` —
+the latter can drop `status=sent` lines and leave send-log rows stuck at
+`queued`. After rename, logrotate runs `create 0640 postfix selfpost` (postlogd
 recreates the file lazily on first write as mode `0600`, which the unprivileged
 panel user cannot read). `follow()` drains the old inode once more before
 switching descriptors; the panel treats a missing log file as an empty tail, not
@@ -112,14 +122,20 @@ the current file from the start; re-parsing lines is harmless because
 with nothing stored, begins at end-of-file, so installing the panel does not
 replay a pre-existing log.
 
-**Remaining gap:**
-
-- **Container recreate** — `/var/log` is ephemeral; the log is lost with the
-  container, so the delivery lines for rows still `queued` are gone with it and
-  those rows stay `queued` forever.
-
-Possible follow-ups if this becomes painful: mount the mail log under `/data`, or
-reconcile stuck rows via `postqueue`.
+**Queue reconcile** is the backstop for what the log cannot explain at all: a
+row still `queued` more than two minutes after it was accepted, whose queue id
+`postqueue -p` no longer lists, is marked `bounced` (swept every five minutes,
+[internal/logtail](../internal/logtail/logtail.go),
+[postfix.QueueIDs](../internal/postfix/queue.go)). Postfix having dropped the
+message means nothing more will ever be reported about it, so the row can only
+be closed on an assumption, and it is closed as a failure because a delivery the
+panel cannot evidence must not be shown as one. Three things keep the sweep from
+guessing where it need not: it starts only after the tailer has read to
+end-of-file once (on a restart the log itself holds the answer), the two-minute
+grace covers messages merely in flight, and a `postqueue` that cannot be read
+leaves every row untouched rather than closing them all. Now that the log
+survives the container, reaching this path means the lines are gone for good —
+rotated past fourteen files while the panel was down, or deleted.
 
 **Two one-shot reads** sit beside the follow loop and are unrelated to it, both
 serving panel pages on request: `TailLines` (the last *n* lines, for
@@ -250,6 +266,7 @@ single-connection trade-off that follows from it.
 | `opendkim/` | DKIM keys + tables |
 | `sasl/sasldb2` | Application SASL credentials |
 | `postfix/sender_login_maps` | Login → From binding |
+| `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
@@ -260,8 +277,8 @@ Not in `/data`: TLS certificates (reverse-proxy mount), Postfix queue
 `postfix reload` in `postrotate` — see § Log tailer above).
 
 **Backup:** panel button or `selfpost-backup` CLI — SQLite snapshot + tar of
-`/data` tree; version check on restore. Stopped-container `tar` of `./data` is
-safe (see guide).
+`/data` tree, minus `log/`, the setup token and any `tls/`; version check on
+restore. Stopped-container `tar` of `./data` is safe (see guide).
 
 **Optional encryption** of the two secret-bearing downloads
 ([internal/secretfile](../internal/secretfile/secretfile.go)): password →
diff --git a/docs/guide.md b/docs/guide.md
index 62bf790..221675a 100644
--- a/docs/guide.md
+++ b/docs/guide.md
@@ -109,7 +109,9 @@ supported configuration:
   (`/data/selfpost.db`), `SELFPOST_SETUP_TOKEN_FILE`
   (`/data/setup-token`), `PANEL_HTTP_ADDR` (`:8080`),
   `JOURNAL_MILTER_SOCKET` (`/run/selfpost/journal.sock`), `MAIL_LOG`
-  (`/var/log/mail.log`), `PANEL_COOKIE_SECURE` (`true`), `OPENDKIM_SOCKET`
+  (`/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`),
@@ -191,8 +193,9 @@ service healthy and will mail be accepted?"
 - **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), or `rejected` (refused — for
-  example by a level-2 rate limit); *Details* opens that row's own page
+  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
@@ -203,10 +206,12 @@ service healthy and will mail be accepted?"
   `SEND_LOG_RETENTION_DAYS`.
 - **Mail queue** (`/mail-queue`) — live view of messages Postfix is still
   trying to deliver or deferring.
-- **System log** (`/system-log`) — tail of `/var/log/mail.log` (Postfix and
+- **System log** (`/system-log`) — tail of `/data/log/mail.log` (Postfix and
   related daemon lines). The log rotates daily (14 files kept) with a
   `postfix reload` after each rotation; a background loop checks every six
-  hours.
+  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 or import a
   single-domain export. See [Backup, restore, and moving a single domain](#backup-restore-and-moving-a-single-domain).
 - **Account** (`/account`) — change the administrator username and/or password.
@@ -288,7 +293,10 @@ Two related but distinct operations — spec 7.5:
 
   **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. Do **not** tar `./data` while
+  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
diff --git a/docs/progress.md b/docs/progress.md
index 8862805..0fac5d9 100644
--- a/docs/progress.md
+++ b/docs/progress.md
@@ -55,7 +55,8 @@
 - **Фаза 3 плана ревизии выполнена (2026-08-06)** (operational improvements, P2–P3): (1) log-tailer сохраняет позицию чтения — таблица `logtail_state` (миграция `0003`, `internal/store/logtail.go`) хранит offset + отпечаток первых 512 байт лога, `internal/logtail/offset.go` решает откуда стартовать: отпечаток совпал → продолжаем с offset (дочитывается хвост, написанный пока панель лежала); не совпал (лог сменился/пересоздан) → читаем файл с начала (повторный разбор безвреден, `UpdateStatus` идемпотентен); записи нет вовсе (первый запуск) → с конца, как раньше. Запись offset — не чаще раза в 5 с, плюс форс при ротации и на выключении; сохраняется позиция *потреблённых* байт (минус недочитанная частичная строка). (2) L2-лимит перестал промахиваться при параллельных сессиях: между проверкой на MAIL FROM и вставкой строки на end-of-message сообщение не видно в БД, поэтому N одновременных сессий пропускали друг друга — теперь к счёту из БД добавляются «в полёте» (`internal/milter/inflight.go`, общий на процесс реестр резерваций); резервация освобождается после записи в send-log, на ABORT и по TTL 10 минут (у go-milter нет колбэка на закрытие соединения, а вечная резервация — это fail-closed-дрейф, которого у лимитера быть не должно). Транзакция «count+insert», как предлагал review, невозможна буквально: эти два шага разнесены по разным стадиям SMTP-транзакции. Тесты: restart/rotation-resume для tailer'а, четыре сценария резерваций для лимита. `gofmt`/`go vet` чистые; `go test ./...` — падения только известные Windows-специфичные (`internal/domain`, `TestFollowTailsAndRotates`). Не проверено на стенде (нет Docker локально) — кандидат на следующий прогон на стенде.
 - **Добор по плану ревизии выполнен (2026-08-06):** (1) проект переехал на единственную площадку — GitHub (Codeberg уходит): вместе с URL, лицензионными шапками SVG/HTML и docs переехал путь Go-модуля на `github.com/mixeme/selfpost` (`go.mod`, `test/e2e/go.mod`, все импорты, `MODULE` в Makefile, `-ldflags` в Dockerfile и development.md) — оставлять импорты на исчезающем хосте нельзя, `go get`/`go install` сломались бы; (2) ссылки на архивную спецификацию убраны из кода целиком — не только «spec 7.x», как просило ревью, но и «spec 4/5/6/8/9», страдавшие тем же, каждая заменена на живой документ с секцией там, где документ большой; (3) [architecture.md](architecture.md) § Code layers — диаграмма слоёв (A2); (4) `TestParseDelivery` расширен экзотикой mail.log — и **вскрыл реальный баг**: шаблон брал `status=` жадно, то есть последнее вхождение в строке, а Postfix дописывает ответ удалённого сервера дословно, поэтому отказ с `status=sent` в тексте ответа попадал в журнал как доставленный (исправлено на ленивый разбор); (5) `CONTRIBUTING.md` перенесён в 2.x, бамп тега образа и git-тег оставлены в [roadmap.md](roadmap.md) § v1.x. `gofmt`/`go vet` чистые в обоих модулях, `go test ./...` — падения только известные Windows-специфичные (`internal/domain`, `TestFollowTailsAndRotates`). На стенде не проверялось (нет Docker локально).
 - **v1.x-closure Фаза 1 выполнена (2026-08-08)** (адаптивный опрос мониторинга): четыре HTMX-фрагмента (`status_body`, `mail_queue_body`, `system_log_body`, `deliveries_rows`) несут `data-poll` и `hx-trigger="load"` только для первого запроса; `panel.js` планирует следующий опрос после `htmx:afterSwap` / `htmx:responseError` — 5 s при активности оператора на странице, 30 s при видимой, но простаивающей вкладке, 0 при скрытой (`beforeRequest` + сброс таймеров на `visibilitychange`). Без `hx-trigger="every … [expr]"` (CSP / `unsafe-eval`). Docs: `architecture.md`, `roadmap.md`, CHANGELOG. На стенде не проверялось.
-- **Дальше:** v1.x-closure [v1.x-closure-plan.md](v1.x-closure-plan.md) — **Фаза 1 закрыта** (адаптивный опрос мониторинга: 5 s / 30 s / 0 при скрытой вкладке, `data-poll` в `panel.js`). Следующий шаг — **Фаза 2** (mail.log в `/data` + postqueue reconcile). Релизный гейт по коду закрыт; бамп тега образа и git tag — по явной команде (Фазы 4–5).
+- **v1.x-closure Фаза 2 выполнена (2026-08-08)** (send-log vs `mail.log`): (1) лог переехал из эфемерного `/var/log` в `/data/log/mail.log` — `maillog_file` в `postfix-config.sh` и `MAIL_LOG` в `cmd/panel/main.go` берут один и тот же дефолт, `entrypoint.sh` создаёт каталог `2750 postfix:selfpost` и нормализует файлы в `0640` на каждом старте (пишет `postlogd` от `postfix`, читает панель по общей группе; postlogd сам создал бы файл в `0600`, поэтому создаём его мы, а logrotate — `create 0640 postfix selfpost`), каталог исключён из общего `chown … panel` в начале entrypoint и из архива бэкапа (`internal/backup`, диагностика, а не состояние). (2) Строки, чьи delivery-строки потеряны безвозвратно, больше не висят `queued` вечно: `postfix.QueueIDs` разбирает `postqueue -p`, `store.ListQueuedOlderThan` отдаёт кандидатов, `internal/logtail` раз в 5 минут закрывает как `bounced` те, чьего queue-id в очереди уже нет (grace 2 мин). Три предохранителя: sweep стартует только после того, как tailer впервые дочитал лог до конца (на рестарте ответ лежит в самом логе), grace покрывает письмо «в полёте», нечитаемый `postqueue` не трогает ничего. Ложно-отрицательный `bounced` — новый принятый риск в [security.md](security.md). Тесты: парсер очереди (включая строку-причину deferred и «Mail queue is empty»), `ListQueuedOlderThan`, три сценария sweep, исключение `log/` из бэкапа. `gofmt`/`go vet` чистые в обоих модулях, `go test ./...` — падения только известные Windows-специфичные (`internal/domain`, `TestFollowTailsAndRotates`). **На стенде не проверялось (нет Docker локально): образ не собирался, контейнер не стартовал** — права на `/data/log`, чтение лога панелью, прокрутка logrotate и `postqueue -p` из-под `panel` подлежат проверке при выкате.
+- **Дальше:** v1.x-closure [v1.x-closure-plan.md](v1.x-closure-plan.md) — **Фазы 1–2 закрыты**. Следующий шаг — **Фаза 3** (docs: development.md, README, удаление планов и `docs/archive/`). Релизный гейт по коду закрыт; бамп тега образа и git tag — по явной команде (Фазы 4–5).
 - **Принятые риски** — [security.md](security.md). **Опционально v1.x / 2.x** — [roadmap.md](roadmap.md) (хвост документации, send-log gaps, Фаза O1+, роль администратора домена).
 - **Прод:** инстанс с реальным Let's Encrypt сертификатом и живым deliverability (DKIM/SPF pass). Контейнер там всё ещё на образе v1.0 — Фаза 14 в него не выкатывалась. При апгрейде: админа один раз разлогинит (сменилось имя cookie), а от reverse-proxy требуется передача исходного `Host` (Apache-фрагмент из `deploy/` это делает).
 
diff --git a/docs/roadmap.md b/docs/roadmap.md
index e45a282..b2bfa7a 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -81,13 +81,16 @@ git-тег `vX.Y.Z`; `implementation-plan.md` в `docs/archive/`, ссылок 
 осознанно не делать.~~ **Закрыто (v1.x-closure Фаза 1):** адаптивный интервал
 5 с / 30 с / 0 (скрытая вкладка) в `panel.js` через `data-poll`.
 
-**Send-log vs `mail.log` (частично закрыто).** Persist позиции чтения сделан
-(таблица `logtail_state`, миграция `0003`): после
-рестарта панели log-tailer дочитывает пропущенный хвост. Остаётся пересоздание
-контейнера — `mail.log` не в `/data` и теряется вместе с ним, такие строки
-навсегда останутся `queued`. Кандидаты, если станет больно: volume для лога,
-сверка зависших строк через `postqueue`. As-built и принятый риск:
-[architecture.md](architecture.md) § Log tailer, [security.md](security.md).
+**Send-log vs `mail.log`.** ~~Persist позиции чтения сделан (таблица
+`logtail_state`, миграция `0003`): после рестарта панели log-tailer дочитывает
+пропущенный хвост. Остаётся пересоздание контейнера — `mail.log` не в `/data` и
+теряется вместе с ним, такие строки навсегда останутся `queued`. Кандидаты, если
+станет больно: volume для лога, сверка зависших строк через `postqueue`.~~
+**Закрыто (v1.x-closure Фаза 2):** сделаны оба кандидата — `mail.log` переехал в
+`/data/log/`, а строки, чьи delivery-строки потеряны безвозвратно, закрываются
+сверкой с `postqueue -p` (grace 2 мин → `bounced`). As-built и оставшийся риск
+(ложный `bounced`): [architecture.md](architecture.md) § Log tailer,
+[security.md](security.md).
 
 ---
 
diff --git a/docs/security.md b/docs/security.md
index 3f5f587..e94b15e 100644
--- a/docs/security.md
+++ b/docs/security.md
@@ -118,12 +118,25 @@ Hardening сверх обязательного (security-заголовки, п
   безвозвратно нерасшифровываемый архив хуже незашифрованного: пароль SelfPost
   не хранит. Триггером сделать шифрование обязательным считать появление
   второго администратора (тогда «кто скачал» перестаёт быть одним человеком).
-- **Send-log может навсегда остаться `queued` после пересоздания контейнера.**
-  Рестарт панели это больше не вызывает: log-tailer сохраняет позицию чтения
-  (`logtail_state`, миграция `0003`) и после старта дочитывает хвост, написанный
-  пока панель лежала. Но `mail.log` живёт не в `/data` и теряется вместе с
-  контейнером — строки, чьи delivery-строки были только в нём, останутся
-  `queued`. См. [architecture.md](architecture.md) § Log tailer.
+- **Строка журнала, оставшаяся без delivery-строк, закрывается как `bounced`, а
+  не как есть.** Риск «вечный `queued`» снят: `mail.log` переехал в
+  `/data/log/` и переживает пересоздание контейнера, а log-tailer сохраняет
+  позицию чтения (`logtail_state`, миграция `0003`), так что после старта хвост
+  дочитывается. Остаток — строки, delivery-строки которых потеряны
+  безвозвратно (лог провернулся дальше 14 файлов, пока панель лежала, либо был
+  удалён): сверка с `postqueue -p` видит, что письма в очереди нет, и через
+  2 минуты grace ставит `bounced`. Если письмо на самом деле ушло, статус
+  окажется ложно-отрицательным. Принято сознательно: доставка, которую панель
+  не может подтвердить, не должна показываться как подтверждённая, а вечный
+  `queued` не отличим от «висит прямо сейчас». Сверка не срабатывает, пока
+  tailer не дочитал лог до конца, и не трогает ничего, если `postqueue` не
+  читается. См. [architecture.md](architecture.md) § Log tailer.
+- **Доступ к `mail.log` из-под непривилегированной панели.** Каталог
+  `/data/log` — `2750 postfix:selfpost`, файл — `0640`: пишет `postlogd`
+  (пользователь `postfix`), читает панель по общей группе `selfpost`, миру файл
+  недоступен. Лог содержит envelope-адреса и IP клиентов, но не тела и не
+  заголовки писем; в бэкап он не попадает (`log/` исключён), чтобы выгрузка
+  оставалась состоянием, а не диагностикой.
 
 ## ADR: CSRF через проверку Origin, без токенов
 
diff --git a/docs/v1.x-closure-plan.md b/docs/v1.x-closure-plan.md
index a9aaaa1..7d0ae96 100644
--- a/docs/v1.x-closure-plan.md
+++ b/docs/v1.x-closure-plan.md
@@ -36,7 +36,7 @@
 ## Общий чек-лист прогресса
 
 - [x] **Фаза 1** — адаптивный опрос мониторинга
-- [ ] **Фаза 2** — mail.log в `/data` + postqueue reconcile
+- [x] **Фаза 2** — mail.log в `/data` + postqueue reconcile
 - [ ] **Фаза 3** — docs: development.md, README, удаление планов и `docs/archive/`
 - [ ] **Фаза 4** — релизный коммит `1.0.0` (по явной команде)
 - [ ] **Фаза 5** — tag `v1.0.0` + push (по явной команде)
@@ -76,26 +76,35 @@
 
 ### 2.1 `mail.log` → `/data/log/mail.log`
 
-- [ ] `build/postfix-config.sh` — `maillog_file`
-- [ ] `build/logrotate-mail.conf` — путь
-- [ ] `build/entrypoint.sh` — `mkdir`, права (postfix write, panel read)
-- [ ] `cmd/panel/main.go` — default `MAIL_LOG`
-- [ ] `test/e2e/mail_helpers.go` — путь в контейнере
-- [ ] `guide.md` — `MAIL_LOG`, рост диска `/data/log`
-- [ ] `envdoc_test` — при изменении env
+- [x] `build/postfix-config.sh` — `maillog_file` из `MAIL_LOG`
+- [x] `build/logrotate-mail.conf` — путь + `create 0640 postfix selfpost`
+- [x] `build/entrypoint.sh` — `mkdir`, права (`2750 postfix:selfpost`, файл `0640`),
+      исключение `/data/log` из общего `chown` на `panel`
+- [x] `cmd/panel/main.go` — default `MAIL_LOG`
+- [x] `internal/backup` — исключить `log/` из архива (+ тест)
+- [x] `test/e2e/mail_helpers.go` — путь в контейнере
+- [x] `guide.md` — `MAIL_LOG`, System log, бэкап `./data`; README — рост диска
+- [x] `envdoc_test` — `MAIL_LOG` в `buildScriptKeys`
 
 ### 2.2 Postqueue reconcile
 
-- [ ] `internal/postfix` — парсер queue-id из `postqueue -p` + тест
-- [ ] `internal/store` — `ListQueuedOlderThan(grace)`
-- [ ] `internal/logtail` — periodic sweep, grace ~2 min → `bounced`
-- [ ] Тесты reconcile
+- [x] `internal/postfix` — `QueueIDs` / парсер queue-id из `postqueue -p` + тест
+- [x] `internal/store` — `ListQueuedOlderThan(cutoff)`
+- [x] `internal/logtail` — periodic sweep (5 min), grace 2 min → `bounced`,
+      старт только после того, как tailer дочитал лог до конца
+- [x] Тесты reconcile
 
 ### 2.3 Документация и риски
 
-- [ ] `architecture.md` — `/data/log`, reconcile; убрать gap «container recreate»
-- [ ] `security.md` — снять принятый риск «вечный queued»
-- [ ] CHANGELOG `[Unreleased]`
+- [x] `architecture.md` — `/data/log`, reconcile; gap «container recreate» убран
+- [x] `security.md` — риск «вечный queued» снят; на его месте — ложный `bounced`
+      и права на лог
+- [x] CHANGELOG `[Unreleased]`
+
+**Стенд (остаток, для оператора):** Docker на машине разработки недоступен —
+сборка образа и старт контейнера не проверены. Проверить при выкате: `/data/log`
+создаётся с нужными правами, панель читает `mail.log`, logrotate проворачивает
+файл, `postqueue -p` читается из-под `panel`.
 
 ---
 
diff --git a/internal/backup/backup.go b/internal/backup/backup.go
index d1bf4f8..2c2c6aa 100644
--- a/internal/backup/backup.go
+++ b/internal/backup/backup.go
@@ -63,10 +63,12 @@ type Params struct {
 // 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); and 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.
+// 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
+// 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{
 	"selfpost.db":         true,
 	"selfpost.db-wal":     true,
@@ -74,6 +76,7 @@ var excludedFromArchive = map[string]bool{
 	"selfpost.db-journal": true,
 	"setup-token":         true,
 	"tls":                 true,
+	"log":                 true,
 	ManifestName:          true,
 }
 
diff --git a/internal/backup/backup_test.go b/internal/backup/backup_test.go
index 7545f72..f7c99bc 100644
--- a/internal/backup/backup_test.go
+++ b/internal/backup/backup_test.go
@@ -39,6 +39,10 @@ func seedDataDir(t *testing.T) (dataDir, dbPath string) {
 	writeFile(t, filepath.Join(dataDir, "setup-token"), "secret-token")
 	writeFile(t, filepath.Join(dataDir, "selfpost.db-wal"), "wal")
 	writeFile(t, filepath.Join(dataDir, "selfpost.db-shm"), "shm")
+	// Postfix's delivery log and its rotated files: diagnostic output, not
+	// 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
 }
 
@@ -104,7 +108,10 @@ func TestCreateIncludesStateExcludesTransient(t *testing.T) {
 		}
 	}
 	// Excluded.
-	for _, name := range []string{"setup-token", "selfpost.db-wal", "selfpost.db-shm"} {
+	for _, name := range []string{
+		"setup-token", "selfpost.db-wal", "selfpost.db-shm",
+		"log/mail.log", "log/mail.log.1",
+	} {
 		if _, ok := files[name]; ok {
 			t.Errorf("archive should not contain %s", name)
 		}
diff --git a/internal/logtail/logtail.go b/internal/logtail/logtail.go
index aa322c6..bc3ffad 100644
--- a/internal/logtail/logtail.go
+++ b/internal/logtail/logtail.go
@@ -16,16 +16,20 @@ import (
 	"os"
 	"regexp"
 	"strings"
+	"sync"
 	"time"
 
+	"github.com/mixeme/selfpost/internal/postfix"
 	"github.com/mixeme/selfpost/internal/store"
 )
 
 // StatusStore is the slice of the store the log-tailer needs: advancing
-// delivery statuses, pruning the retention window, and remembering how far into
-// mail.log it has read. *store.Store satisfies it.
+// delivery statuses, finding the rows still waiting for one, pruning the
+// retention window, and remembering how far into mail.log it has read.
+// *store.Store satisfies it.
 type StatusStore interface {
 	UpdateStatus(queueID, recipient, status string) (int64, error)
+	ListQueuedOlderThan(cutoff time.Time) ([]store.QueuedDelivery, error)
 	DeleteSendLogBefore(cutoff time.Time) (int64, error)
 	LogtailState(path string) (store.LogtailState, bool, error)
 	SaveLogtailState(path string, st store.LogtailState) error
@@ -35,6 +39,10 @@ type StatusStore interface {
 // is a var so tests can shorten it.
 var pollInterval = time.Second
 
+// queueIDs lists the messages Postfix currently holds, for the reconcile sweep.
+// It is a var so tests can answer without a running Postfix.
+var queueIDs = postfix.QueueIDs
+
 const (
 	// retentionInterval is how often the retention sweep runs (also once at
 	// startup). The window itself is configurable; the cadence need not be.
@@ -42,6 +50,13 @@ const (
 	// defaultRetentionDays applies when the configured value is unset/invalid
 	// (guide § Environment variables: SEND_LOG_RETENTION_DAYS).
 	defaultRetentionDays = 90
+	// reconcileInterval is how often the sweep compares stuck rows against the
+	// Postfix queue, and reconcileGrace how long a row is left alone first.
+	// The grace covers the ordinary lag between the milter writing the row and
+	// Postfix logging the result — seconds, generously rounded up — so a
+	// message merely in flight is never touched.
+	reconcileInterval = 5 * time.Minute
+	reconcileGrace    = 2 * time.Minute
 )
 
 // deliveryRe matches a Postfix delivery line and captures queue-id, recipient
@@ -89,7 +104,14 @@ func parseDelivery(line string) (queueID, recipient, status string, ok bool) {
 func Run(ctx context.Context, path string, st StatusStore, retentionDays int) error {
 	go retentionLoop(ctx, st, retentionDays)
 
-	return follow(ctx, path, &tracker{st: st, path: path}, func(line string) {
+	// The reconcile sweep must not run against a backlog the tailer has not
+	// read yet: on a restart the log holds the very lines that resolve the rows
+	// the sweep would otherwise close. follow() closes this once it has read to
+	// end-of-file for the first time.
+	caughtUp := make(chan struct{})
+	go reconcileLoop(ctx, st, caughtUp)
+
+	return follow(ctx, path, &tracker{st: st, path: path}, caughtUp, func(line string) {
 		queueID, recipient, status, ok := parseDelivery(line)
 		if !ok {
 			return
@@ -100,6 +122,75 @@ func Run(ctx context.Context, path string, st StatusStore, retentionDays int) er
 	})
 }
 
+// reconcileLoop periodically closes send-log rows Postfix has stopped working
+// on (architecture.md § Log tailer). It starts only once the tailer has caught
+// up with the log, and then leaves the first sweep a full interval away, so a
+// restart resolves rows from the log — the accurate source — before the sweep
+// gets to guess at whatever the log could not explain.
+func reconcileLoop(ctx context.Context, st StatusStore, caughtUp <-chan struct{}) {
+	select {
+	case <-ctx.Done():
+		return
+	case <-caughtUp:
+	}
+
+	t := time.NewTicker(reconcileInterval)
+	defer t.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-t.C:
+			reconcile(st, time.Now().UTC().Add(-reconcileGrace))
+		}
+	}
+}
+
+// reconcile marks as bounced every row still "queued" from before cutoff whose
+// message Postfix no longer holds.
+//
+// A row reaches this state only when its delivery lines are gone for good — the
+// log rotated past its fourteen files while the panel was down, or was deleted
+// — since the log itself now outlives the container. Postfix having dropped the
+// message means it will never report anything more about it, so the row can
+// only be closed on an assumption; it is closed as a failure rather than a
+// success because a delivery the panel cannot evidence must not be shown as
+// one. Rows whose message is still in the queue, and every row when the queue
+// cannot be listed at all, are left exactly as they are.
+func reconcile(st StatusStore, cutoff time.Time) {
+	rows, err := st.ListQueuedOlderThan(cutoff)
+	if err != nil {
+		log.Printf("log-tailer: reconcile: list queued rows: %v", err)
+		return
+	}
+	if len(rows) == 0 {
+		return
+	}
+
+	held, err := queueIDs()
+	if err != nil {
+		// No listing is no information: closing rows now would be a guess made
+		// against nothing.
+		log.Printf("log-tailer: reconcile: read postfix queue: %v", err)
+		return
+	}
+
+	var closed int
+	for _, row := range rows {
+		if _, still := held[row.QueueID]; still {
+			continue
+		}
+		if _, err := st.UpdateStatus(row.QueueID, row.To, store.StatusBounced); err != nil {
+			log.Printf("log-tailer: reconcile: close %s/%s: %v", row.QueueID, row.To, err)
+			continue
+		}
+		closed++
+	}
+	if closed > 0 {
+		log.Printf("log-tailer: reconcile: closed %d row(s) Postfix no longer holds and never reported", closed)
+	}
+}
+
 // retentionLoop prunes expired send-log rows immediately and then periodically.
 func retentionLoop(ctx context.Context, st StatusStore, retentionDays int) {
 	if retentionDays <= 0 {
@@ -323,7 +414,11 @@ func SplitTimestamp(line string) (stamp, rest string) {
 // start of a file that changed while the panel was down, or end-of-file on a
 // first ever run); it reopens the file when it is rotated (inode change from
 // logrotate's create, or truncation from copytruncate) so nothing is missed.
-func follow(ctx context.Context, path string, tr *tracker, handle func(string)) error {
+//
+// caughtUp is closed after the first read that reaches end-of-file, which is
+// the point where every line the panel missed while it was down has been
+// handled.
+func follow(ctx context.Context, path string, tr *tracker, caughtUp chan struct{}, handle func(string)) error {
 	var (
 		f       *os.File
 		r       *bufio.Reader
@@ -397,6 +492,8 @@ func follow(ctx context.Context, path string, tr *tracker, handle func(string))
 		return pos - int64(len(pending))
 	}
 
+	var once sync.Once
+
 	ticker := time.NewTicker(pollInterval)
 	defer ticker.Stop()
 	for {
@@ -406,6 +503,7 @@ func follow(ctx context.Context, path string, tr *tracker, handle func(string))
 			return nil
 		case <-ticker.C:
 			drain()
+			once.Do(func() { close(caughtUp) })
 			ni, err := os.Stat(path)
 			if err != nil {
 				continue // file briefly gone mid-rotation; try again next tick
diff --git a/internal/logtail/logtail_test.go b/internal/logtail/logtail_test.go
index def7e61..1273d48 100644
--- a/internal/logtail/logtail_test.go
+++ b/internal/logtail/logtail_test.go
@@ -2,6 +2,7 @@ package logtail
 
 import (
 	"context"
+	"errors"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -142,6 +143,10 @@ type captureStore struct {
 	state     store.LogtailState
 	haveState bool
 	stateErr  error
+
+	// queued is what ListQueuedOlderThan returns, for the reconcile sweep.
+	queued    []store.QueuedDelivery
+	queuedErr error
 }
 
 func (c *captureStore) UpdateStatus(queueID, recipient, status string) (int64, error) {
@@ -153,6 +158,12 @@ func (c *captureStore) UpdateStatus(queueID, recipient, status string) (int64, e
 
 func (c *captureStore) DeleteSendLogBefore(time.Time) (int64, error) { return 0, nil }
 
+func (c *captureStore) ListQueuedOlderThan(time.Time) ([]store.QueuedDelivery, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	return c.queued, c.queuedErr
+}
+
 func (c *captureStore) LogtailState(string) (store.LogtailState, bool, error) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
@@ -335,6 +346,73 @@ func waitFor(t *testing.T, cond func() bool) {
 	t.Fatal("condition not met within timeout")
 }
 
+// stubQueue makes the reconcile sweep answer from a fixed list of queue ids
+// instead of a running Postfix, or fail if err is non-nil.
+func stubQueue(t *testing.T, err error, ids ...string) *int {
+	t.Helper()
+	calls := 0
+	old := queueIDs
+	queueIDs = func() (map[string]struct{}, error) {
+		calls++
+		if err != nil {
+			return nil, err
+		}
+		set := make(map[string]struct{}, len(ids))
+		for _, id := range ids {
+			set[id] = struct{}{}
+		}
+		return set, nil
+	}
+	t.Cleanup(func() { queueIDs = old })
+	return &calls
+}
+
+// A row stays "queued" forever when its delivery lines are gone for good. The
+// queue is what settles it: a message Postfix still holds is simply in flight
+// and must be left alone, while one it no longer holds will never be reported
+// on and is closed.
+func TestReconcileClosesOnlyWhatPostfixNoLongerHolds(t *testing.T) {
+	stubQueue(t, nil, "STILLQ")
+
+	cs := &captureStore{queued: []store.QueuedDelivery{
+		{QueueID: "STILLQ", To: "inflight@example.net"},
+		{QueueID: "GONEQ", To: "lost@example.net"},
+	}}
+	reconcile(cs, time.Now().UTC())
+
+	got := cs.snapshot()
+	if len(got) != 1 || got[0] != "GONEQ|lost@example.net|"+store.StatusBounced {
+		t.Fatalf("got %v, want only the message Postfix dropped closed as bounced", got)
+	}
+}
+
+// A queue that cannot be listed says nothing about any message — treating the
+// failure as an empty queue would close every stale row at once.
+func TestReconcileLeavesRowsAloneWhenTheQueueCannotBeRead(t *testing.T) {
+	stubQueue(t, errors.New("postqueue: Permission denied"))
+
+	cs := &captureStore{queued: []store.QueuedDelivery{
+		{QueueID: "GONEQ", To: "lost@example.net"},
+	}}
+	reconcile(cs, time.Now().UTC())
+
+	if got := cs.snapshot(); len(got) != 0 {
+		t.Fatalf("got %v, want no row touched", got)
+	}
+}
+
+// With nothing stale to explain there is no reason to shell out to postqueue at
+// all — which is the normal state of a relay that is keeping up.
+func TestReconcileSkipsTheQueueWhenNoRowIsStuck(t *testing.T) {
+	calls := stubQueue(t, nil)
+
+	reconcile(&captureStore{}, time.Now().UTC())
+
+	if *calls != 0 {
+		t.Fatalf("queue listed %d time(s), want none", *calls)
+	}
+}
+
 // A delivery's page shows what Postfix wrote about that one message, so the
 // read has to pick its queue-id's lines out of everything else the mail path
 // logged around them — and only its own: queue ids are hexadecimal runs, and a
diff --git a/internal/postfix/queue.go b/internal/postfix/queue.go
index 039b41a..847eaac 100644
--- a/internal/postfix/queue.go
+++ b/internal/postfix/queue.go
@@ -3,6 +3,7 @@ package postfix
 import (
 	"fmt"
 	"os/exec"
+	"regexp"
 	"strings"
 )
 
@@ -20,3 +21,43 @@ func Queue() (string, error) {
 	}
 	return string(out), nil
 }
+
+// QueueIDs returns the set of queue ids Postfix is still holding — everything
+// in the maildrop, incoming, active, deferred and hold queues. It answers the
+// one question the log-tailer's reconcile sweep asks about a send-log row stuck
+// at "queued": is Postfix still working on this message, or has it left the
+// queue without the panel ever seeing a delivery line for it (architecture.md §
+// Log tailer)?
+//
+// An error means the queue could not be listed and therefore says nothing about
+// any message; the caller must treat it as "no information", never as an empty
+// queue.
+func QueueIDs() (map[string]struct{}, error) {
+	out, err := Queue()
+	if err != nil {
+		return nil, err
+	}
+	return parseQueueIDs(out), nil
+}
+
+// queueEntryRe matches the first line of a `postqueue -p` entry, e.g.
+//
+//	3C5B04E6C1*     446 Thu Aug  7 10:12:31  app@example.com
+//
+// The id is at the start of the line, optionally flagged '*' (in the active
+// queue) or '!' (on hold), and is followed by the message size. Requiring the
+// size is what separates an entry from the listing's other left-margin lines:
+// the '-Queue ID-' header, the '-- 5 Kbytes in 2 Requests.' trailer, a deferred
+// entry's '(connect timed out)' reason, and 'Mail queue is empty'. Recipient
+// lines are indented and never match.
+var queueEntryRe = regexp.MustCompile(`^([0-9A-Za-z]+)[*!]?\s+\d+\s`)
+
+func parseQueueIDs(listing string) map[string]struct{} {
+	ids := make(map[string]struct{})
+	for _, line := range strings.Split(listing, "\n") {
+		if m := queueEntryRe.FindStringSubmatch(line); m != nil {
+			ids[m[1]] = struct{}{}
+		}
+	}
+	return ids
+}
diff --git a/internal/postfix/queue_test.go b/internal/postfix/queue_test.go
new file mode 100644
index 0000000..fbeb988
--- /dev/null
+++ b/internal/postfix/queue_test.go
@@ -0,0 +1,43 @@
+package postfix
+
+import "testing"
+
+// The reconcile sweep decides whether a message is still Postfix's problem, so
+// the parser must pick queue ids out of a real listing and nothing else out of
+// it: not the header, not the byte-count trailer, and above all not a deferred
+// entry's reason line, which — unlike the recipient lines — starts at the left
+// margin just as an entry does.
+func TestParseQueueIDs(t *testing.T) {
+	listing := `-Queue ID-  --Size-- ----Arrival Time---- -Sender/Recipient-------
+3C5B04E6C1*     446 Fri Aug  8 10:12:31  app@example.com
+                                         rcpt@example.net
+
+5B4A2C1D3E      446 Fri Aug  8 10:13:31  app@example.com
+(connect to mx.example.net[203.0.113.9]:25: Connection timed out)
+                                         deferred@example.net
+
+A1B2C3D4E5F!    891 Fri Aug  8 10:14:31  app@example.com
+                                         held@example.net
+
+-- 1 Kbytes in 3 Requests.
+`
+	ids := parseQueueIDs(listing)
+	want := []string{"3C5B04E6C1", "5B4A2C1D3E", "A1B2C3D4E5F"}
+	for _, id := range want {
+		if _, ok := ids[id]; !ok {
+			t.Errorf("queue id %s not found in %v", id, ids)
+		}
+	}
+	if len(ids) != len(want) {
+		t.Errorf("got %d ids %v, want exactly %v", len(ids), ids, want)
+	}
+}
+
+// An empty queue must come back as an empty set, not as a phantom id parsed out
+// of Postfix's prose — every stale row would otherwise be compared against a
+// listing that claims to hold a message called "Mail".
+func TestParseQueueIDsOnAnEmptyQueue(t *testing.T) {
+	if ids := parseQueueIDs("Mail queue is empty\n"); len(ids) != 0 {
+		t.Errorf("got %v, want no ids", ids)
+	}
+}
diff --git a/internal/store/sendlog.go b/internal/store/sendlog.go
index 66f0054..6bb7e33 100644
--- a/internal/store/sendlog.go
+++ b/internal/store/sendlog.go
@@ -93,6 +93,45 @@ func (s *Store) UpdateStatus(queueID, recipient, status string) (int64, error) {
 	return n, nil
 }
 
+// QueuedDelivery is a send-log row still waiting for a delivery result,
+// reduced to what the log-tailer's reconcile sweep needs to look it up in the
+// Postfix queue and, failing that, to close it (architecture.md § Log tailer).
+type QueuedDelivery struct {
+	QueueID string
+	To      string
+}
+
+// ListQueuedOlderThan returns the rows still marked "queued" that were accepted
+// before cutoff — old enough that Postfix should long since have reported a
+// result for them. Rows without a queue-id are skipped: the milter refused
+// those before Postfix ever saw the message, so the queue has nothing to say
+// about them.
+//
+// created_at is stored as RFC3339 UTC, so a lexical comparison against the same
+// format is chronologically correct.
+func (s *Store) ListQueuedOlderThan(cutoff time.Time) ([]QueuedDelivery, error) {
+	rows, err := s.db.Query(
+		`SELECT queue_id, to_addr FROM send_log
+		 WHERE status = ? AND queue_id <> '' AND created_at < ?
+		 ORDER BY id`,
+		StatusQueued, cutoff.UTC().Format(time.RFC3339),
+	)
+	if err != nil {
+		return nil, fmt.Errorf("list queued send_log rows: %w", err)
+	}
+	defer rows.Close()
+
+	var out []QueuedDelivery
+	for rows.Next() {
+		var d QueuedDelivery
+		if err := rows.Scan(&d.QueueID, &d.To); err != nil {
+			return nil, fmt.Errorf("scan queued send_log row: %w", err)
+		}
+		out = append(out, d)
+	}
+	return out, rows.Err()
+}
+
 // SendLogRow is one row as returned to the monitoring UI (architecture.md §
 // Persistence): a SendLogEntry plus the fields that only exist once a row has
 // been written (id, current status, timestamps).
diff --git a/internal/store/sendlog_test.go b/internal/store/sendlog_test.go
index 9947c80..0512ab2 100644
--- a/internal/store/sendlog_test.go
+++ b/internal/store/sendlog_test.go
@@ -95,6 +95,58 @@ func TestUpdateStatusRecipientCaseInsensitive(t *testing.T) {
 	}
 }
 
+// The reconcile sweep asks for the rows old enough that Postfix should have
+// reported on them by now. A message accepted moments ago is simply in flight,
+// and one the milter refused never reached the queue at all, so neither is the
+// sweep's business.
+func TestListQueuedOlderThan(t *testing.T) {
+	st := openTestStore(t)
+
+	for _, e := range []SendLogEntry{
+		{QueueID: "OLD1", To: "stale@example.net"},
+		{QueueID: "NEW1", To: "fresh@example.net"},
+	} {
+		if err := st.InsertQueued(e); err != nil {
+			t.Fatalf("InsertQueued: %v", err)
+		}
+	}
+	// A row the milter refused: no queue-id, and a status the sweep never sees.
+	if err := st.InsertRejected(SendLogEntry{To: "refused@example.net"}); err != nil {
+		t.Fatalf("InsertRejected: %v", err)
+	}
+	// A row that has already been delivered, aged the same as the stale one.
+	if err := st.InsertQueued(SendLogEntry{QueueID: "DONE1", To: "done@example.net"}); err != nil {
+		t.Fatalf("InsertQueued: %v", err)
+	}
+	if _, err := st.UpdateStatus("DONE1", "done@example.net", StatusSent); err != nil {
+		t.Fatalf("UpdateStatus: %v", err)
+	}
+
+	cutoff := time.Now().UTC().Add(-2 * time.Minute)
+	backdate(t, st, "OLD1", cutoff.Add(-time.Hour))
+	backdate(t, st, "DONE1", cutoff.Add(-time.Hour))
+
+	got, err := st.ListQueuedOlderThan(cutoff)
+	if err != nil {
+		t.Fatalf("ListQueuedOlderThan: %v", err)
+	}
+	if len(got) != 1 || got[0] != (QueuedDelivery{QueueID: "OLD1", To: "stale@example.net"}) {
+		t.Fatalf("got %+v, want only the stale queued row", got)
+	}
+}
+
+// backdate rewrites a row's acceptance time, so a test can age it past a cutoff
+// without waiting.
+func backdate(t *testing.T, s *Store, queueID string, at time.Time) {
+	t.Helper()
+	if _, err := s.db.Exec(
+		`UPDATE send_log SET created_at = ? WHERE queue_id = ?`,
+		at.UTC().Format(time.RFC3339), queueID,
+	); err != nil {
+		t.Fatalf("backdate %s: %v", queueID, err)
+	}
+}
+
 func TestUpdateStatusNoMatch(t *testing.T) {
 	st := openTestStore(t)
 	if err := st.InsertQueued(SendLogEntry{QueueID: "Q1", To: "a@example.net"}); err != nil {
diff --git a/test/e2e/mail_helpers.go b/test/e2e/mail_helpers.go
index 2ac9ba8..d125bcf 100644
--- a/test/e2e/mail_helpers.go
+++ b/test/e2e/mail_helpers.go
@@ -74,7 +74,7 @@ var connectFromPattern = regexp.MustCompile(`connect from [^\[]*\[([0-9a-fA-F.:]
 // lastSMTPClientIP reads mail.log inside the selfpost container and returns
 // the most recent address Postfix's smtpd logged a connection from.
 func lastSMTPClientIP(s *stack) (string, error) {
-	out, err := s.execIn("selfpost", "tail", "-n", "200", "/var/log/mail.log")
+	out, err := s.execIn("selfpost", "tail", "-n", "200", "/data/log/mail.log")
 	if err != nil {
 		return "", err
 	}