Optional inbound relay (backup-MX / forwarder) on port 25, off by default. Mail is accepted only for domains configured in the panel and forwarded to an upstream; there are still no mailboxes. A dedicated security review of the inbound path is still open on the plan (Fable).
Added:
- `INBOUND_RELAY_ENABLE` (default `false`): when true, Postfix listens on
- Panel **Inbound** pages (global administrator): domains, upstream host/port
- Optional `INBOUND_ANTISPAM_MILTER` on the inbound listener only, plus
- Inbound rate limit (`INBOUND_RATE_LIMIT_MESSAGES_PER_IP`, default 20) and
Changed:
- Compose publishes host port 25 even when the flag is off (nothing listens
- Full-backup restore Resync also rebuilds inbound maps when the flag is on.
Full detail: CHANGELOG.md (1.4.0).
[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).
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).
mix