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Author SHA1 Message Date
Jagoda Estera Ślązak 135ea2e637 chore: update filtermail.mtail (#190) 
Logs for filtermail-transport changed in v0.7.2+.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak e1a6c5cfda chore(release): prepare for 0.7.3 (#189) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak 230415914b feat(transport): Worker eviction (#185) 
Adds max worker capacity of 500 to the worker pool,
and an automatic shutdown of idle workers.
Messages that would cause the capacity to be exceeded,
are deferred.

Additionally, ensures that the same worker
is not spawned by two tasks at the same time.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak 8f4b1461d2 chore(release): prepare for 0.7.2 (#184) 2026-08-18 12:21:29 +02:00
Jagoda Ślązak af5e641905 docs(readme): Update Transport mode doc 
Add information about workers,
and synchronization of deliveries.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Ślązak acc00badd4 refactor: Implement Display for AddressDomain 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Ślązak 5d37a73795 test: Test filtermail-transport 
Adds filtermail-transport tests and
a test setup for recording SMTP transactions.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Ślązak cfc6eb9b21 feat(transport): Destination worker pool 
Implements a per-destination worker pool,
so that connections to the same destination
are not parallelized, but instead queued.
If a queue is full, new messages are immediately
deferred, before mail data is sent from postfix.

Closes: #141

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
dependabot[bot] ecbaf1b255 chore(deps): Bump taiki-e/install-action from 2.81.6 to 2.81.10 (#183) 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.81.6 to 2.81.10.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/59012be0884e296ca2da49b530610e72c49039ad...7a79fe8c3a13344501c80d99cae481c1c9085912)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.81.10
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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 2026-08-18 12:21:29 +02:00
dependabot[bot] dc383cf5f3 chore(deps): Bump taiki-e/install-action from 2.79.14 to 2.81.6 (#182) 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.79.14 to 2.81.6.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/873c7452cadb7c034694a1282227095d93fbdf92...59012be0884e296ca2da49b530610e72c49039ad)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.81.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 2026-08-18 12:21:29 +02:00
dependabot[bot] 7df8274a96 chore(deps): Bump actions/checkout from 6.0.2 to 6.0.3 (#181) 
Bumps [actions/checkout](https://github.com/actions/checkout) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/de0fac2e4500dabe0009e67214ff5f5447ce83dd...df4cb1c069e1874edd31b4311f1884172cec0e10)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak 2e98d192d9 docs(readme): Disable colors in mermaid diagrams (#180) 
Previously used colors caused
diagrams to be unreadable in
light mode.
Removing styling completely,
as this was redundant anyway.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak 28b93801fc chore(release): prepare for 0.7.1 (#179) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak 0177502929 feat: switch to aws-lc-rs cryptography provider (#178) 
Switches crypto provider to keep
chatmail codebase consistent,
analogous to https://github.com/chatmail/core/pull/8313

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
dependabot[bot] 7ea891657a chore(deps): Bump log from 0.4.29 to 0.4.30 (#173) 
Bumps [log](https://github.com/rust-lang/log) from 0.4.29 to 0.4.30.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/log/compare/0.4.29...0.4.30)

---
updated-dependencies:
- dependency-name: log
  dependency-version: 0.4.30
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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 2026-08-18 12:21:29 +02:00
l 8cc578a5bb fix: ignore CNAME records when resolving TXT records (#177) 2026-08-18 12:21:29 +02:00
dependabot[bot] ea8af25840 chore(deps): Bump taiki-e/install-action from 2.79.6 to 2.79.14 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.79.6 to 2.79.14.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/f48d2f8ba2b452934c948b7be1a768079c3632ff...873c7452cadb7c034694a1282227095d93fbdf92)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.79.14
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-08-18 12:21:29 +02:00
dependabot[bot] a398029e2a chore(deps): Bump memchr from 2.8.0 to 2.8.1 
Bumps [memchr](https://github.com/BurntSushi/memchr) from 2.8.0 to 2.8.1.
- [Commits](https://github.com/BurntSushi/memchr/compare/2.8.0...2.8.1)

---
updated-dependencies:
- dependency-name: memchr
  dependency-version: 2.8.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-08-18 12:21:29 +02:00
dependabot[bot] 5fddfdbc0c chore(deps): Bump lru from 0.17.0 to 0.18.0 (#171) 
Bumps [lru](https://github.com/jeromefroe/lru-rs) from 0.17.0 to 0.18.0.
- [Changelog](https://github.com/jeromefroe/lru-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jeromefroe/lru-rs/compare/0.17.0...0.18.0)

---
updated-dependencies:
- dependency-name: lru
  dependency-version: 0.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 2026-08-18 12:21:29 +02:00
dependabot[bot] 089d9e2372 chore(deps): Bump tokio from 1.52.1 to 1.52.3 (#172) 
Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.52.1 to 1.52.3.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.52.1...tokio-1.52.3)

---
updated-dependencies:
- dependency-name: tokio
  dependency-version: 1.52.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-08-18 12:21:29 +02:00
Andrey 0xdc09 0c0e84f649 fix(resolver): disable negative caching (#170) 2026-08-18 12:21:29 +02:00
j4n bb835594cc chore: add filtermail.mtail so filtermail failures can be monitored (#169) 
Example Prometheus queries:

Outbound errors by reason:
  sum by (reason) (rate(filtermail_transport_error_total[5m]))

filtermail-incoming drops by reason:
  sum by (reason) (rate(filtermail_inbound_drop_total[5m]))
 2026-08-18 12:21:29 +02:00
Jagoda Estera Ślązak b75717c205 fix(smtp-server): Correct error when EOF while reading DATA (#168) 
Log
`Unexpected EoF while receiving DATA!`
instead of
`Malformed DATA line without CRLF ending!`

Fixes: #165

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:29 +02:00
dependabot[bot] b1b58a6612 chore(deps): Bump taiki-e/install-action from 2.75.28 to 2.79.6 (#164) 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.75.28 to 2.79.6.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/51cd0b8c0499559d9a4d75c0f5c67bec3a894ec8...f48d2f8ba2b452934c948b7be1a768079c3632ff)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.79.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-08-18 12:21:29 +02:00
l d12e1d53f7 fix: switch ratelimiter to MonotonicClock (#167) 
There is a known bug that `quanta` clock
used by default sometimes jumps back:
<https://github.com/metrics-rs/quanta/issues/111>.
This results in `governor` rate limiter
incorrectly rejecting the messages
even when less than the configured burst size
has been sent.

Switched to standard monotonic clock
which does not have this problem.
I tested that this fixed the problem for me,
chatmail relay test `test_exceed_rate_limit`
stopped failing randomly.

Fixes <https://github.com/chatmail/filtermail/issues/166>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak bd995918ba chore(release): prepare for 0.7.0 (#163) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak a1d54dca93 docs(readme): Remove docs for options removed in 664ad57 (#162) 2026-08-18 12:21:28 +02:00
link2xt 4d6f6af20b fix: do not crash if accepting new connection fails 
If we run out of file descriptors, we cannot do anything
to accept queued connections, so at least don't crash the process.
Fixes <https://github.com/chatmail/filtermail/issues/139>.
 2026-08-18 12:21:28 +02:00
holger krekel 7d7bccd44b feat!: remove passthrough options that allowed unencrypted mail to pass 
see https://github.com/chatmail/relay/pull/970/ for the related removal of chatmail.ini options
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 7c9d4422a5 chore(release): prepare for 0.6.6 (#156) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
holger krekel 9896541fbb ci: run cmlxc tests in all classic/classic-ipv4/madmail combinations 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 54ecc59345 feat: Improved SMTP error responses (#147) 
Fixes: #140

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 24922fbada ci: Remove mac and windows from matrix tests (#154) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
holger krekel 02e68ac146 fix: return HTTP 200 because madmail expects it, and make sure https is immediately retried when SMTP fails (#153) 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak b0c452afe5 chore(release): prepare for 0.6.5 (#152) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
dependabot[bot] 0b34522b22 chore(deps): Bump taiki-e/install-action from 2.75.22 to 2.75.28 (#148) 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.75.22 to 2.75.28.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/cf525cb33f51aca27cd6fa02034117ab963ff9f1...51cd0b8c0499559d9a4d75c0f5c67bec3a894ec8)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.75.28
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-08-18 12:21:28 +02:00
l 49b65b676a fix: Validate mail data (#150) 
Do not allow bare CR and LF etc.
 2026-08-18 12:21:28 +02:00
holger krekel 0473f5a588 fix: advertise 8BITMIME to prevent conversion after DKIM signing (#149) 
for bounces postfix sets Content-Transfer-Encoding: 8bit
which causes a quoted-printable conversion when filtermail SMTP does not offer 8BITMIME,
which in turn breaks DKIM verification.
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak d07a51522d perf(smtp-client): Use pipelining if server advertises support (#146) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 0c917d4d87 fix(smtp-client): Handle 421 on reused connection (#145) 
If a reused connection was closed
in the meantime, open a new connection,
instead of failing immediately.

Fixes #143

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 2e80eb651f chore(deps): Upgrade hickory-resolver (#138) 2026-08-18 12:21:28 +02:00
dependabot[bot] 8742ead65e chore(deps): Bump webpki-roots from 1.0.6 to 1.0.7 (#136) 
Bumps [webpki-roots](https://github.com/rustls/webpki-roots) from 1.0.6 to 1.0.7.
- [Release notes](https://github.com/rustls/webpki-roots/releases)
- [Commits](https://github.com/rustls/webpki-roots/compare/v/1.0.6...v/1.0.7)

---
updated-dependencies:
- dependency-name: webpki-roots
  dependency-version: 1.0.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-08-18 12:21:28 +02:00
dependabot[bot] 24ecb41dee chore(deps): Bump tokio from 1.51.1 to 1.52.1 (#135) 
Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.51.1 to 1.52.1.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.51.1...tokio-1.52.1)

---
updated-dependencies:
- dependency-name: tokio
  dependency-version: 1.52.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 2026-08-18 12:21:28 +02:00
dependabot[bot] ababa88a2d chore(deps): Bump lru from 0.16.3 to 0.17.0 (#133) 
Bumps [lru](https://github.com/jeromefroe/lru-rs) from 0.16.3 to 0.17.0.
- [Changelog](https://github.com/jeromefroe/lru-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jeromefroe/lru-rs/compare/0.16.3...0.17.0)

---
updated-dependencies:
- dependency-name: lru
  dependency-version: 0.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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 2026-08-18 12:21:28 +02:00
dependabot[bot] 5312341404 chore(deps): Bump taiki-e/install-action from 2.75.17 to 2.75.22 (#132) 
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 2.75.17 to 2.75.22.
- [Release notes](https://github.com/taiki-e/install-action/releases)
- [Changelog](https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/install-action/compare/58e862542551f667fa44c8a2a4a1d64ad477c96a...cf525cb33f51aca27cd6fa02034117ab963ff9f1)

---
updated-dependencies:
- dependency-name: taiki-e/install-action
  dependency-version: 2.75.22
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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 2026-08-18 12:21:28 +02:00
holger krekel 3ee0bfd35b ci: build and deploy relays with filtermail binary and run interop tests against madmail (#131) 
* ci: Run relay integration tests using cmlxc

Builds filtermail and runs cmlxc
tests against a patched chatmail/relay.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>

* ci: run integration tests with branch filtermail binary deployed with chatmail/relay main code

---------

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
Co-authored-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak a30c8b3995 chore(release): prepare for 0.6.4 (#130) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Estera Ślązak 2ddd5d0cc7 feat: https transport channel (#122) 
Transport mode:
Implements an additional mail delivery
channel over HTTPS.

Incoming mode:
Adds a http server listening for
incoming messages delivered over HTTPS.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Ślązak 3c32af1c47 refactor(transport): Explicitly handle RFC7505 null MX 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00
Jagoda Ślązak 4131fd0823 fix: Implement missing "implicit MX" rule 
Implements "implicit MX" as described by
https://datatracker.ietf.org/doc/html/rfc5321#section-5.1

Fixes: #126
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:28 +02:00