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Sendmail

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

Free Open Source
Mac
Linux

There are many alternatives to Sendmail for Linux if you are looking to replace it. The most popular Linux alternative is Zentyal, which is both free and Open Source. If that doesn't suit you, our users have ranked 27 alternatives to Sendmail and 18 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Sendmail are Postfix (Free, Open Source), Zimbra Collaboration Suite (Freemium, Open Source), Exim (Free, Open Source) and sSMTP (Free, Open Source).

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Alternatives to Sendmail for Linux with any license

Zentyal

Zentyal is a native Microsoft Active Directory® implementation on Linux incorporating all the network services required in a small and medium business environment:...

Free Open Source Linux
File sharing Gateway Email Server Remote desktop ... Email Server Add a feature

53 Like
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
Email Server Add a feature

23 Like
Zimbra Collaboration Suite

Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra...

Freemium Open Source Linux Web Self-Hosted
Active Directory integration ActiveSync Email Server Real time collaboration ... Team Collaboration Add a feature

28 Like
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 Linux
SMTP Add a feature

12 Like
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
SMTP Support for NodeJS Add a feature

3 Like
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
Network Tools SMTP Add a feature

3 Like
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
SMTP Add a feature

4 Like
Atmail Email Server

Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. Features: Webmail Calendar Addressbook ...

Commercial Linux Web
File sharing File-sync Group Mail Email Server Add a feature

7 Like
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Dragonfly Mail Agent

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

Free Open Source Linux BSD
SMTP Add a feature

3 Like
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
Email Server SMTP Add a feature

7 Like

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