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Top 7 open-source products relevant to Email, Self-hosted Email, SMTP Servers, and MTA

  1. Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

    Open Source

    /exim-alternatives

  2. Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...

    Open Source

    /dovecot-alternatives

  3. The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...

    Open Source

    /courier-mta-alternatives

  4. Open source SMTP server written in Node.js.

    Open Source

    /haraka-alternatives

  5. DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...

    Open Source

    /dbmail-alternatives

  6. KumoMTA is the world's first Open-Source MTA designed from the ground-up for large-volume senders. Get a fast, flexible, supported solution.

    Open Source free

    /kumomta-alternatives

  7. The Cyrus IMAP server differs from other IMAP server implementations in that it is generally...

    Open Source

    /cyrus-imap-alternatives

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