Software Alternatives, Accelerators & Startups

Microsoft SMTP Server

Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.

Microsoft SMTP Server Alternatives

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

  1. 15

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

  2. 15

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

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

    Try for free freemium $9.0 / Monthly

    Try for free
  4. 12

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

    Open Source

  5. 14

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

    Open Source

  6. 10

    A small Mail Transport Agent (MTA), designed for home and office use. Part of ...

  7. 12

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

  8. Inbucket is an email testing application; it will accept messages for any email address and make...

    Open Source

  9. The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...

    Open Source

  10. msmtp is an SMTP client.

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

    Open Source

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

    Open Source

  13. BulkMTA is Commercial Mail Server Similar to PowerMTA.

  14. esmtp is a user configurable relay-only Mail Transfer Agent (MTA) with a sendmail compatible syntax.

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