Alternatives to esmtp for all platforms with Open Source 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
  • msmtp

    In the default mode, it transmits a mail to an SMTP server (for example at a free mail provider) which takes care of further delivery. To use this program with your...

    Free Open Source Linux Xfce

  • sSMTP

    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....

    Free Open Source Linux

  • 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
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Platforms

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