Software Alternatives, Accelerators & Startups

Postfix

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

Postfix Alternatives

The best Postfix alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. 38

    A fully fledged, free email server solution, an open source project (GPL v2).

    Open Source

    /iredmail-alternatives
  2. 37

    Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

    /zimbra-alternatives
  3. Warm up your cold email inbox, and never land in spam anymore!

    Try for free freemium $9.0 / Monthly

    Try for free
  4. 45

    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
  5. 22

    An open source mailserver suite.

    Open Source

    /mailcow-alternatives
  6. 34

    Sendmail is a general purpose internetwork email routing facility that supports many kinds of...

    /sendmail-alternatives
  7. 26

    Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

    Open Source

    /mail-in-a-box-alternatives
  8. 25

    Web-based IMAP email client

    Open Source

    /roundcube-alternatives
  9. 28

    sSMTP is a simple MTA to deliver mail from a computer to a mail server.

    /ssmtp-alternatives
  10. 21

    PowerMTA is an industrial-strength software for high-volume email delivery.

    /powermta-alternatives
  11. 21

    Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

    /microsoft-exchange-server-alternatives
  12. 20

    hMailServer is a free e-mail server for Microsoft Windows.

    /hmail-server-alternatives
  13. 23

    OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...

    Open Source

    /opensmtpd-alternatives
  14. 13

    MailerQ is a high performance Mail Transfer Agent (MTA) designed for delivering large volume email messages at very high speeds.

    /mailerq-alternatives
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