Postfix AlternativesMail Servers and other similar apps like Postfix

Postfix is described as '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' and is a Mail Server in the online services category. There are more than 25 alternatives to Postfix for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and BSD apps. The best Postfix alternative is Mail-in-a-box, which is both free and Open Source. Other great apps like Postfix are Exim, Mailpit, MailHog and KumoMTA.

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Alternatives list

  1. Mail-in-a-box icon

    Mail-in-a-box

     23 likes

    Easy-to-deploy mail server.

    19 Mail-in-a-box alternatives

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Roundcube
    Control Panel
     
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    1
    Mail-in-a-box vs Postfix Comments
    Guest
    Negative
    2

    Mail-in-a-box uses Postfix internally

    Review by a new / low-activity user.
    • Mail-in-a-box is Free and Open SourcePostfix is also Free and Open Source
    • Mail-in-a-box is Privacy focusedPostfix is not according to our users
  2. Exim icon

    Exim

     11 likes

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

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
     
  4. Mailpit icon

    Mailpit

     3 likes

    An email and SMTP testing tool with API for developers.

    34 Mailpit alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    Mailpit screenshot 1
     
  5. MailHog icon

    MailHog

     8 likes

    MailHog is an email testing tool inspired by MailCatcher, but easier to install.

    33 MailHog alternatives

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Docker
    MailHog screenshot 1
     
    |
    1
    MailHog vs Postfix Comments
    Guest
    Negative
    0

    Mailhog is for testing if another application can send mails.

    Postfix is for sending and receiving mails.

    Review by a new / low-activity user.
    • MailHog is Free and Open SourcePostfix is also Free and Open Source
  6. KumoMTA icon

    KumoMTA

     4 likes

    KumoMTA is the only true Open-Source PowerMTA alternative, capable of matching performance of several million messages per hour while providing granular traffic shaping configuration and automation across unlimited IPs.

    Cost / License

    Platforms

    • Self-Hosted
    KumoMTA screenshot 1
     
  7. Stalwart icon

    Stalwart

     2 likes

    Stalwart is an open-core mail server solution with JMAP, IMAP4, POP3, and SMTP support and a wide range of modern features. It is written in Rust and designed to be secure, fast, robust and scalable.

    6 Stalwart alternatives

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Docker
    • Linux
    • Windows
    • Mac
    Setup demonstration
     
  9. OpenSMTPD icon

    OpenSMTPD

     6 likes

    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.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • BSD
    • Self-Hosted
     
  10. Haraka icon

    Haraka

     3 likes

    Haraka is an open source SMTP server written in Node.js which provides extremely high performance coupled with a flexible plugin system allowing Javascript programmers full access to change the behaviour of the server.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Self-Hosted
    • Node.JS
     
  11. Sendmail icon

    Sendmail

     4 likes

    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.

    26 Sendmail alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    Main Page
     
  12. Courier-MTA icon

    Courier-MTA

     7 likes

    The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent, framework.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    • BSD
    • Self-Hosted
     
  13. S

    sSMTP

     3 likes

    sSMTP is a simple MTA to deliver mail from a computer to a mail server. sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue.

    19 sSMTP alternatives

    Cost / License

    Alerts

    • Discontinued

    Platforms

    • Linux
     
  14. D

    Dragonfly Mail Agent

     3 likes

    A small Mail Transport Agent (MTA), designed for home and office use. Part of DragonFly BSD , it accepts mails from locally installed Mail User Agents (MUA) and delivers the mails either locally or to a remote destination.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • BSD
     
12 of 26 Postfix alternatives