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selfpost/build/opendkim.conf
T
mixandClaude Opus 5 ab2cd885c4
test / test (push) Has been cancelled
review follow-up: close the gaps left by the phase1-6 pass
Verified the tree against docs/plans/code-review-2026-08.md and finished the
tasks that were only partly done, plus two defects the pass introduced.

- bcrypt: the setup account was still hashed at DefaultCost (10). The work
  factor now has one definition, auth.BcryptCost = 12, used everywhere.
- rate limiter: protecting blocked buckets from eviction was unbounded — an
  attacker with many source addresses could grow the map by making each one
  fail its way to blocked. Blocked buckets are now evicted past
  maxBuckets * 4, nearest expiry first, logged once per window. Tests cover
  both halves.
- postqueue: the 5s timeout left the output size unbounded; reads are now
  capped at 4 MiB and report truncation.
- spec references: the ~76 `spec N` citations CHANGELOG [0.5.0] claimed were
  gone are removed from build/, deploy/, the first two migrations and the
  release workflow, with the affected comment paragraphs re-wrapped. Comments
  only; shell/YAML/SQL syntax re-checked.
- schema-migrations.md: schema section was headed v9 with the chain at v10,
  and three links pointed at deleted plan files.
- internal/configsafe: the shared empty/forbidden-character check behind the
  OpenDKIM and Postfix config writers; each writer keeps its own forbidden set.
- dropped the parseDomainRateLimitForm/parseAppRateLimitForm pass-throughs
  left behind by the parser merge (only their own tests still called them).
- plan doc now carries a status table: what shipped, what was already in
  place, what was declined (//go:build linux for the /proc reader) and the
  open CSRF-token question.

Not done, each its own phase: typed template data structs, log/slog, DMARC
service and handler tests, error-page/corrupted-backup tests, backup re-auth.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-19 20:03:05 +03:00

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# OpenDKIM — per-domain signing.
#
# Signing is strictly per-domain: each sending domain has its own key pair and
# selector. The panel generates keys under /data/opendkim/keys/<domain>/ and
# keeps KeyTable/SigningTable in sync as domains are added or removed, then asks
# supervisord to send this process SIGUSR1 to reload the tables.
#
# Both table files are created (empty) by entrypoint.sh before OpenDKIM starts,
# so the daemon comes up cleanly on a fresh /data with no domains yet and simply
# signs nothing until the first domain is added.
Syslog no
UMask 007
Mode s
# SigningTable uses refile: so the "*@example.com" left-hand patterns match any
# local-part for a domain; KeyTable maps each domain to its key and selector.
KeyTable /data/opendkim/KeyTable
SigningTable refile:/data/opendkim/SigningTable
# The private keys are owned by `panel` and read by `opendkim` through the shared
# `selfpost` group, so they are deliberately group-readable (mode 0640). That is
# safe on this single-tenant, private bind mount, but it trips OpenDKIM's default
# key-safety check, so the check is disabled here by design.
RequireSafeKeys no
Socket local:/run/opendkim/opendkim.sock
PidFile /run/opendkim/opendkim.pid
UserID opendkim
Background no