Sendmail Alternatives for Linux
There are many alternatives to Sendmail for Linux if you are looking to replace it. The most popular Linux alternative is 
Postfix, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Sendmail and 18 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Sendmail are 
Zentyal (Paid, Open Source), 
Zimbra Collaboration Suite (Freemium, Open Source), 
OpenSMTPD (Free, Open Source) and 
Exim (Free, Open Source).
- Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. View 22 alternatives to Postfix
- Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory &... View 28 alternatives to Zentyal
- Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. View 42 alternatives to Zimbra Collaboration Suite
- Freemium • Open Source
- Linux
- Online
- Self-Hosted
- OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. View 12 alternatives to OpenSMTPD
- Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. View 16 alternatives to Exim
- 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. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue. View 18 alternatives to sSMTP
- 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. View 6 alternatives to msmtp
- Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. View 70 alternatives to Atmail Email Server
- A small Mail Transport Agent (MTA), designed for home and office use. Part of http://alternativeto. View 7 alternatives to Dragonfly Mail Agent
- 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. View 12 alternatives to Courier-MTA