Security review (1c6e04b):
- The panel's database and its -wal/-shm were 0644 under a traversable
/data, holding the panel users' password hashes and session token
hashes. store.Open now makes them 0600 (SQLite gives the next -wal/-shm
the database's mode: findCreateFileMode(), unixOpenSharedMemory());
TestOpenKeepsTheDatabasePrivate.
- The entrypoint removes a symbolic link the panel user could leave where
a /data directory, table, map, the queue or mail.log is expected, before
its root steps chmod or create them (drop_links).
- The panel user is 10999:10999, outside the system range: in trixie
useradd gave it group 998, the host's systemd-network on the test
server; bookworm's 999 was the host's systemd-journal.
- security.md said the database was 0640; it was 0644.
Technical review (1c6e04b):
- mail_helpers.go: smtp-sink does add a Received: header, "(smtp-sink)"
(smtp-sink.c:520-531); the "(Postfix)" filter leaves it out.
- CHANGELOG/roadmap: OpenDKIM's signing and From:-parsing code is
unchanged, not all of it; the retry-policy bug predates 3.9 (any
postconf warning); three entries moved from Fixed to Changed, as no
released image had them.
- internal/app/sasl.go: db_dump's stdout alone is parsed.
- mynetworks comment: postinst:180, fset_all_changed.
Tests: on the server, make e2e exit 0 (712 s), go vet + go test 27
packages ok.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The runtime base is debian:trixie-slim, the build stage golang:1.26-trixie:
Postfix 3.10.13 with upstream's 2026 security fixes up to the August
batch, libmilter 8.18.1, OpenSSL 3.5. Every citation of another program in
code, scripts and documents was re-read against the trixie sources
(dev/upstream; bookworm's kept in dev/upstream-bookworm) and updated;
development.md's cited-package table holds the trixie versions.
What the re-reading changed in behaviour:
- logtail: reject lines with sasl_method/sasl_username/sasl_sender
(smtpd_check.c:1019-1026); cleanup's "removed (canceled)" forgets a
port-25 id (cleanup_api.c:363-364).
- internal/postfix/retry.go reads postconf's stdout only: since 3.9 a
deprecated-parameter warning on stderr made one value too many and the
panel fell back to the compiled-in retry policy.
- logrotate-loop.sh: logrotate 3.22 exits 1 when it ignores a config;
the loop refuses on that output whatever the status.
- postfix-config.sh: cyrus_sasl_config_path set explicitly (bookworm's
07_sasl_config.diff is gone); maillog_file_permissions=0640; mynetworks
explicit; Dockerfile: SYNC_CHROOT= in /etc/default/postfix,
opendkim-tools dropped, openssl named, systemd-standalone-sysusers so
cron does not bring the whole of systemd.
- The selfpost group is 10998, outside the system range 100-999: in
trixie a package took 998 and the build failed (owner's decision:
a conflict-free id, the distribution's own ids untouched). The
entrypoint hands /data back by name when the user or the group differs.
Guide, backup refusal text, help (design commit 68ec8b2), e2e.
- smtpd_hide_client_session=yes on smtps and submission (owner's
decision): Received: names no client, TLS, login or protocol; port 25
keeps the full header. e2e checks both.
- test/upstream/opendkim-probe.sh makes keys with openssl genrsa.
Tests: on the server, make e2e exit 0 (674 s, the image built on trixie),
go vet + go test 27 packages ok. CHANGELOG [Unreleased], guide,
architecture.md, security.md, roadmap.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The last stage of the 2026-10-12 audit; no cut.
Doc drift: architecture.md (the sender check in § OpenDKIM, the limit:
row's 48 hours, the inbound log and filter-list routes and who may open
them, migrations to 0011 and every table, KitPage as production data,
Reload configuration as a restore writes, the panel's roles counted),
schema-migrations.md (tables and columns since v2), guide.md (a delivery's
lines go at the next prune; INBOUND_JOURNAL_MILTER_SOCKET moved to
architecture.md's internal list), development.md (the env guard, the
deferral the e2e proves, its fixed sleeps), roadmap.md.
Comments say what the code does now; TestBaselineIsTheOnlyMigration is
TestChainStartsAtTheBaseline; the milter package doc names its three
milters.
Dead code gone: view.Facts, dmarc HostedSuggestion and
ValidateHostedAddress, app UpdateMode (each with the test that alone kept
it), the method checks the method-bound routes made dead;
Settings.WithResult calls resultFlash. staticcheck 2026.1 in test.yml on
both modules, clean: the e2e package builds without its tests now (a test
and two constants moved out of non-test files), three findings fixed.
The test moved, TestImageBuildPreservesLogrotateMode, had sat in a
non-test file and never run; run, it failed on the entrypoint (docker run
without a hostname) and now asks with --entrypoint stat.
The test gaps no step named, each closed: follow() with mail.log gone past
blindMin and made again; CheckRestore with a manifest that is not JSON;
the origin check with a port; every /server/ pattern in web.go through
server() and in the routes table (it found GET /server/health/fragment
missing from the table - guarded, not tested); L9 as the owner decided it
on 2026-10-12, the comment on senderSession.Headers and the test passing
an h that holds the earlier messages' From:.
Plan stage 6 ticked; roadmap audit row done, 81/81.
Tested on the test server: go vet + go test of 27 packages, make e2e (all
pass, 513 s) on this tree; staticcheck locally on both modules.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Comments only, no behaviour changed. Each main.cf/master.cf parameter the
build sets, the wrapper's and the reload hook's reliance on Postfix 3.7.11
(postfix-script, master.5, postconf.5, cleanup_init.c, smtpd_peer.c,
README_FILES), supervisor 4.2.5 (process.py, options.py, events.rst),
logrotate 3.21.0, OpenDKIM's config, Cyrus SASL's sasldb, rspamd 3.11.1
(milter_headers.lua, multimap, the map watcher), Docker Compose, CoreDNS
and certbot now say where that is written. Measurements already there stay
measurements ("date not recorded" where none was); hand-composed fixtures
say so.
Contradictions left for their own commits: C-P31 cleanup's size limit,
C-P42 master outside supervisor's signal, C-V5/V6 startsecs, C-V10,
C-S3/Q3 sasldb written in place, C-Q4/A1 certbot's symlinks, C-R7 rspamd
skips local clients but the signature routine does not, C-P8, C-R4, C-R12,
C-M7, C-E2, C-K8/K9, C-D1.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
[1.0.0]
Added:
- A **Delivery log** on each delivery's page (`/deliveries/{id}`): the
- A **History** block on the same page: the journal's two timestamps stated as
Fixed:
- Postfix config: copy TLS cert/key from the (often `:ro`, host-owned) mount
- Postfix config: allow `maillog_file` under `/data` via
- E2e: read `/data/setup-token` via `docker compose exec` (file is `0600`
- Entrypoint: check `SELFPOST_HOSTNAME` before `/data` setup (so a bad identity
- E2e gate: wait for host-published `/healthz` before panel setup, and stop
… (3 more in CHANGELOG)
Changed:
- Document what `.spbk` and `.spde` stand for (SelfPost backup / SelfPost domain
- Docs aligned with the code: setup URL is `/setup/<token>` (README and
- Full backups no longer carry `/data/log`. It is Postfix's raw log plus its
- Monitoring screens (status, mail queue, system log, deliveries) use adaptive
- Documentation package consolidated into `docs/development.md`: Documentation
… (4 more in CHANGELOG)
[1.0.1]
A documentation and packaging release: no change to the mail path, the database, or the on-disk layout. Upgrading is a tag bump.
Added:
- `SECURITY.md` — how to report a vulnerability privately (GitHub private
- [docs/plans/](docs/plans/) — one document per agreed extension: the optional
Changed:
- The panel's **Account** entry is now called **Settings** — nav link, page
- The signed-in name in the panel's nav is now labelled `User:`, so it reads as
- [docs/product.md](docs/product.md) reframes the future line: the inbound
- [docs/security.md](docs/security.md) is now in English, matching the rest of
- The README documentation table now points at `SECURITY.md` for reporting a
… (2 more in CHANGELOG)
Fixed:
- The panel's static assets are served with a content ETag and
Squashed CHANGELOG sections: [1.0.0], [1.0.1].
Full detail: CHANGELOG.md (1.0.0, 1.0.1).
Initial feature-complete implementation of the v1.0 specification (phases 0-11 of `docs/implementation-plan.md`).
Added:
- Panel (Go, single static binary) with SQLite persistence, one-time
- Domain management with per-domain DKIM (RSA-2048, generated in pure Go) and
- Application (sender identity) management: SASL credentials via `sasldb2`,
- Full Postfix relay config generated from env at container start: SMTPS 465,
- Journal milter (pure Go, `go-milter`) recording every send to `send_log`;
… (6 more in CHANGELOG)
Full detail: CHANGELOG.md (0.1.0).
mixandClaude Opus 5.5