Postfix (software)
 |
|
| Developer(s) | Wietse Venema and many others |
|---|---|
| Initial release | December 1998 |
| Stable release |
3.2.0 / February 28, 2017
|
| Preview release |
3.3-20170218 / February 18, 2017
|
| Written in | C |
| Operating system | Cross-platform |
| Type | Mail transfer agent |
| License | IBM Public License |
| Website | www.postfix.org |
Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail, intended as an alternative to Sendmail MTA.
Postfix is released under the IBM Public License 1.0 which is a free software license.
Originally written in 1997 by Wietse Venema at the IBM Thomas J. Watson Research Center and first released in December 1998, Postfix continues as of 2017[update] to be actively developed by its creator and other contributors. The software is also known by its former names VMailer and IBM Secure Mailer.
In March 2017 in a study performed by E-Soft, Inc., approximately 33% of the publicly reachable mail-servers on the Internet ran Postfix.
As an server, Postfix implements a first layer of defense against spambots and malware. Administrators can combine Postfix with other software that provides spam/virus filtering (e.g., Amavisd-new), message-store access (e.g., Dovecot), or complex -level access-policies (e.g., postfwd, policyd-weight or greylisting).
As an client, Postfix implements a high-performance parallelized mail-delivery engine. Postfix is often combined with mailing-list software (such as Mailman).
Postfix runs (or has run) on AIX, BSD, HP-UX, Linux, OS X, Solaris and, generally speaking, on every Unix-like operating system that ships with a C compiler and delivers a standard POSIX development environment. It is the default MTA for the OS X, NetBSD and Ubuntu operating systems.
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