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- Fix dovecot package download URLs for new [release](https://github.com/chatmail/dovecot/releases/tag/upstream%2F2.3.21%2Bdfsg1-3%2Bchatmail2) with - debian-security backport for 12 CVEs - distro-specific suffix (+deb{release}u1), simplified primary URL path: remove codename subdirectory - Use VERSION_ID from os-release as deb_release instead of codename mapping, reorder hash-dict to match Github release page - Remove redundant parsing/validation, let function validate against hash dict - Update test expectations
Chatmail relays for end-to-end encrypted email
Chatmail relay servers are interoperable Mail Transport Agents (MTAs) designed for:
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Zero State: no private data or metadata collected, messages are auto-deleted, low disk usage
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Instant/Realtime: sub-second message delivery, realtime P2P streaming, privacy-preserving Push Notifications for Apple, Google, and Huawei;
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Security Enforcement: Only connections with strict TLS are accepted; all messages must be correctly signed with DKIM and OpenPGP-encrypted with minimized metadata. There are experimental exceptions for no-DNS relays, which are allowed use self-signed TLS certificates and which do not need to DKIM-sign their messages. Unencrypted messages are allowed in neither case.
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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