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This will remove all headers possible during LMTP delivery, except: - From: required or core does not process the message correctly. Also required for cleartext compatibility. - Message-Id: required for clients to know which messages have been downloaded - Chat-Is-Post-Message: is required for our attachment previews - Content-Type: required - For Cleartext compability: To, CC, In-Reply-To, References, Subject, and Date - For Chatmail future expansion, allow Chat-* - Permit the entire Secure-Join* namespace Co-authored-by: holger krekel <holger@merlinux.eu>
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 strict TLS, DKIM and OpenPGP with minimized metadata accepted
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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