SSMTP is a program which delivers email from a local computer to a configured mailhost (mailhub). It is not a mail server (lik ...

Available in Windows and Windows Server via the optional IIS role. Configure SMTP e-mail in IIS when you want to deliver e-mai ...

Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, i ...

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, ...

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

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, a ...