Commit Graph

11 Commits

Author SHA1 Message Date
holger krekel 664ad571b6 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
2026-05-14 20:59:13 +02:00
Jagoda Estera Ślązak 0a652e61ee 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>
2026-05-01 10:30:09 +02:00
Jagoda Estera Ślązak cf64778f71 feat(transport): Remote delivery over SMTP (#104)
Implements a new mode "transport",
that allows filtermail to be used for
remote delivery.

In transport mode, filtermail listens for LMTP
connections, splits messages by domain
and performs delivery to remote MTAs over SMTP.

SMTP client tries to open socket on all resolved
addresses in parallel and uses one that succeeds
the first, fixing the issue described in:
chatmail/relay#900

Extends the built-in SMTP client
with STARTTLS support.

Extends the built-in SMTP server
with LMTP greeting support.

Groundwork required for mxdeliv endpoint
(HTTP channel for MTA-to-MTA communication):
chatmail/relay#900

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-04-15 22:12:09 +02:00
Jagoda Estera Ślązak 05cbf2908c feat: Add experimental option to disable mailboxes (#108)
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-04-01 23:05:02 +02:00
Andrey 0xdc09 49df79bfa0 feat: configurable hosts for listen and reinject (#84)
Adds configurable listen IP and postfix host 
via `filtermail_host` and `postfix_host` chatmail.ini config fields.
2026-03-13 17:04:44 +01:00
Jagoda Estera Ślązak 8dd9436a0d feat!: Remove IP verification for domain-literals (#90)
BREAKING CHANGE: messages using domain-literal
  addresses don't require to match the origin
  SMTP connection IP anymore.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-03-13 12:25:45 +01:00
Jagoda Estera Ślązak a096d0550f 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>
2026-02-16 09:50:55 +01:00
Jagoda Estera Ślązak 23231d462c feat: Configurable rate limiter max burst size (#28)
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-01-28 17:47:48 +01:00
Jagoda Estera Ślązak b5a56a6a4e perf: Use governor for rate limiting (#20)
Fixes: #19

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-01-22 14:49:26 +01:00
Jagoda Estera Ślązak 2b4205a60a fix(config): Set default values for internal SMTP ports and max message size (#12)
Fixes: #7

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-01-21 14:27:21 +01:00
Jagoda Ślązak 6340f479ae feat: Initial implementation
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-01-19 16:49:50 +01:00