Sendmail Alternatives

Apps similar to Sendmail include Postfix, which is free and open source. Other options are Zentyal, Mail-in-a-box, Zimbra Collaboration Suite and Microsoft Exchange. You're spoiled for choice with Mail Servers like Sendmail: we list more than 25 alternatives for Linux, self-hosting, Windows, Mac and the web.

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Sendmail alternatives page was last updated Jan 5, 2025

Qmail
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QMail MTA.
Cost / License
Free
Proprietary
Application type
Mail Server
Origin
United States
Platforms
Linux
BSD
FreeBSD
Debian
Ubuntu
Slackware
Good alternative?Is Qmail a good alternative to Sendmail?
E-MailRelay
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A lightweight mail server with SMTP and POP3 support. It mainly used as store-and-forward mail server with POP access to spooled messages or it can be used as a personal internet mail server.
Cost / License
Free
Open Source (GPL-2.0)
Application type
Mail Server
Platforms
Windows
Linux
Good alternative?Is E-MailRelay a good alternative to Sendmail?

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