holger krekel fb80f23cfd feat: Automatic per-user quota-preservation.
Replace daily timer-based message expire script
with Dovecot quota-warning-triggered cleanup.
When a user reaches 90% of their mailbox quota
Dovecot calls the new script which removes the largest and oldest messages
until usage drops below 80%.

The daily `chatmail-expire` service now only
handles deletion of inactive user mailboxes.
2026-04-18 02:04:36 +02:00
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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