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
No features added Add a feature

49 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
No features added Add a feature

21 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...

Commercial Linux Web
ActiveSync Real time 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 Windows Linux
No features added 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
No features added Add a feature

1 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
No features added Add a feature

7 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
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3 Like
Dragonfly Mail Agent

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

Free Open Source Linux BSD
No features added Add a feature

3 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-sync Group Mail Add a feature

7 Like
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

0 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
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1 Like
PowerMTA

Email gateway application (SMTP server) that makes it easy for senders to adopt the latest authentication specifications ( SPF and DKIM) to comply with changing ISP...

Commercial Windows Linux Self-Hosted
No features added Add a feature

1 Like
MailerQ

MailerQ is a high performance Mail Transfer Agent (MTA) and a very fast SMTP server, designed to deliver large volumes of email messages at very high speeds. MailerQ is...

Commercial Linux
Management Console Add a feature

3 Like
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

2 Like
EmailSuccess

EmailSuccess, an advanced SMTP Server (MTA) built from the ground up to handle the most critical reliability, performance, security, and deliverability requirements.

Commercial Linux
Email deliverability Encrypted email Add a feature

1 Like