Alternatives to sSMTP for all platforms with any license

Platforms

Desktop

Show 4 less popular platforms
  • Exim icon

    Exim

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

    Free Open Source Mac Windows Linux

    No features added Add a feature
  • Postfix icon

    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

    No features added Add a feature
  • Courier-MTA icon

    Courier-MTA

    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...

    Free Open Source Mac Linux BSD Self-Hosted

    No features added Add a feature
  • OpenSMTPD icon

    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...

    Free Open Source Linux BSD Self-Hosted

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  • Sendmail icon

    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

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  • Hectane icon

    Hectane

    An SMTP client that is extremely easy to configure and use, providing a simple HTTP API that is used for sending emails.

    Free Windows Linux

    No features added Add a feature
  • BulkMTA

    BulkMTA is Commercial Mail Server Similar to PowerMTA. IP Rotation, DKIM, Sender / Receiver Rate limiting

    Commercial Mac Windows Linux

    No features added Add a feature
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