Alternatives to Haraka for all platforms with any license

  • Postfix

    Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. The software is also known by...

    Free Open Source Mac Linux

    Postfix icon
  • Exim

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

    Free Open Source Mac Linux

    Exim icon
  • OpenSMTPD

    OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to...

    Free Open Source Linux BSD Self-Hosted

    OpenSMTPD icon
  • Sendmail

    Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol...

    Free Open Source Mac Linux

    Sendmail icon

Platforms

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