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223fa3c67bf8fea490fb260e2cbc3de613d09d6f
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21 Commits
Author SHA1 Message Date
Jagoda Estera Ślązakandmissytake 223fa3c67b chore(tests): Add a way to disable DKIM for tests (#50) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 3dfac56db9 feat: Support addresses using domain literals (#42) 
If the incoming email comes from address that uses
domain literals `[<ipv4>]` or `[IPv6:<ipv6>]`,
skip DKIM verification and instead check IP
alignment with originating IP from XFORWARD
command.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 23074f0898 feat!: DKIM verifier (#35) 
* feat!: DKIM verifier

This implements a DKIM verification as well as a strict
DKIM signature alignment check with domain in `From`
header address.

Caches the retrieved RDATA using in-memory LRU.

BREAKING CHANGE: incoming messages now require DKIM signatures
  aligned to domain of the `From` header address.

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

* chore(license): License binaries under GPLv3

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

---------

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 5c603db830 feat: Support legacy, pre-OpenPGP packet format (#44) 
Support legacy packet format for compatibility with GnuPG.

Closes: #43

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake f34642e96c refactor: Use a custom, minimal SMTP client instead of lettre (#33) 
This disables the Nagle's algorithm on re-insertion.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 0dfc3fae4e refactor: Remove unnecessary Arc (#36) 
`Arc` around handler configs are not needed,
as they are not shared.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake f2941c9807 feat: Configurable rate limiter max burst size (#28) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
link2xtandmissytake 71739d3334 refactor: remove Mutex around rate limiter 
Rate limiter handles all the necessary locking internally.
 2026-08-18 12:21:27 +02:00
link2xtandmissytake fa762d0cb5 perf: disable Nagle's algorithm and do own buffering on server connections 
I don't know if Postfix as the client disables delayed ACKs,
but if delayed ACKs are enabled, Nagle's algorithm introduces unnecessary delays.
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake ac5042a3d5 fix: Make inbound/outbound log messages consistent (#23) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake ac3ea7fd8e fix: Set logs required by grafana to INFO (#21) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 62de6d824c perf: Use governor for rate limiting (#20) 
Fixes: #19

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 8eee767e85 refactor: Apply more lints (#17) 
Sets lint rules and applies required changes.

Fixes: #16

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 44c8c1906f feat: Improve logging (#13) 
Improves logs and reduces verbosity.

Fixes: #8

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 8ba2bc22c5 fix(config): Set default values for internal SMTP ports and max message size (#12) 
Fixes: #7

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 0f8a02d4d2 fix: Correct a typo in SMTP answer (#11) 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
landmissytake 3ac927ed2d refactor: get rid of indexing and slicing in check_armored_payload() (#15) 
Indexing can potentially panic, without indexing
it is easier to make sure there will be no crash.
 2026-08-18 12:21:27 +02:00
Jagoda Estera Ślązakandmissytake 6f5dd21c8e fix: Improve address extraction from SMTP commands (#14) 
Prevents extraction failing on SRS.

Fixes: #9

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
Jagoda Ślązakandmissytake 81b4aecce9 feat: Initial implementation 
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
 2026-08-18 12:21:27 +02:00
link2xt b548a8ddbd Merge doveauth and filtermail into chatmaild 2023-10-15 15:57:36 +00:00
link2xt c9dc32bd10 Add filtermail 2023-10-14 21:52:47 +00:00