Jagoda Ślązak 36478dbfcf feat(filtermail): Disable IP verification on domain-literal addresses
Disables IP verification by upgrading filtermail to v0.6,
changelog: <https://github.com/chatmail/filtermail/releases/tag/v0.6.0>

Messages using domain-literal addresses no longer require
to match the origin SMTP connection IP anymore.

This allows for example a relay using IPv4 email addresses
to send messages to other relays over IPv6.

This is not considering a breaking change as IP-address-only
relays are not considered a stable feature.

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
2026-03-13 20:47:10 +01:00
2025-12-18 23:49:48 +00:00
2025-12-18 09:21:19 +01:00

Chatmail relays for end-to-end encrypted email

Chatmail relay servers are interoperable Mail Transport Agents (MTAs) designed for:

  • Zero State: no private data or metadata collected, messages are auto-deleted, low disk usage

  • Instant/Realtime: sub-second message delivery, realtime P2P streaming, privacy-preserving Push Notifications for Apple, Google, and Huawei;

  • Security Enforcement: only strict TLS, DKIM and OpenPGP with minimized metadata accepted

  • Reliable Federation and Decentralization: No spam or IP reputation checks, federating depends on established IETF standards and protocols.

This repository contains everything needed to setup a ready-to-use chatmail relay on an ssh-reachable host. For getting started and more information please refer to the web version of this repositories' documentation at

https://chatmail.at/doc/relay

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