OpenSMTPD

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com
Email Communication systems SMTP Mail Transfer Agents Mta

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  • OpenSMTPD

    This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome!

  • OpenSMTPD-extras

    This is the mirror of the official repository of OpenSMTPD addons

    • Very outdated experimental stuff, maybe during the first iteration of filter API, there was a native filter to do just DKIM signing https://github.com/OpenSMTPD/OpenSMTPD-extras/blob/filter-dk...

    These days one could leverage rspamd filter which does DKIM along with other useful stuff.

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  • chasquid

    SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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