Alternatives to Haraka

  • 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 its former names VMailer and IBM Secure Mailer.

    Open Source Free Linux Mac

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  • Mail-in-a-box

    Take back control of your email with this easy-to-deploy mail server in a box. Mail-in-a-Box turns a fresh cloud computer into a working mail server.You get contact synchronization, spam filtering, and so on. On your phone, you can use apps like K-9…

    Open Source Free Roundcube Self-Hosted

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  • Exim

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

    Open Source Free Linux Mac Windows

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  • 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 exchange e-mails with other systems speaking the SMTP protocol.

    Open Source Free Self-Hosted BSD Linux

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  • 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 (SMTP) used for email transport over the Internet. A descendant of the deliverma…

    Open Source Free Linux Mac

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  • NikaMail

    Portable, extendable, zero-config email server for JVM and Ruby. 1. PortableJust copy and run. Only dependency is Java. Need to port your app to another server? - Just copy it. 2. Zero-configNo need to learn a voodo magic. Install it with one simple…

    Open Source Free Linux Mac

    NikaMail icon