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    Courier-MTA Alternatives

    Courier-MTA is described as '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' and is a Mail Server in the office & productivity category. There are more than 10 alternatives to Courier-MTA for a variety of platforms, including Linux, Mac, Windows, Self-Hosted solutions and BSD. The best alternative is Postfix, which is both free and Open Source. Other great apps like Courier-MTA are Mail-in-a-box, OpenSMTPD, sSMTP and Exim.

    This page was last updated Feb 25, 2019
    • FreeOpen Source
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    The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as...
    Learn more about Courier-MTA

      • FreeOpen Source
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      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.
    1. Easy-to-deploy mail server.


      • FreeOpen Source
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      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.
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      • FreeOpen Source
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      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.

      Discontinued

      The last update was in 2013.

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      • FreeOpen Source
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      Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
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      • FreeOpen Source
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      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.
      • FreeOpen Source
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      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.
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      Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP policies for accountable outbound email delivery. No over hype. It just delivers.
    2. Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site. Mail can be delivered immediately or it can be delivered to a file location on disk where it can be retrieved for delivery later.
      • FreeProprietary
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      Lightweight, cross-platform SMTP client.
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    Showing 10 of 12 alternatives