Postfix : is a free software / open source Mail Transport Agent ( MTA ) , a computer program for routing and sending email, created with the intention of being a faster, easier to manage and secure alternative to the widely used Sendmail . Formerly known as vmailer and IBM Secure Mailer, it was originally written by Wietse Venema while staying at the Thomas J. Watson Research Center of IBM , and continues to be actively developed.
Postfix is the default transport agent on various Linux distributions
Release history
Stable versions are referred to as “Postfix abc”, where ‘a’ is the major value of the version, ‘b’ the minor, and ‘c’ is the value of the revision. The ‘mail_release_date’ directive indicates the release date of the Postfix version and revision.
| Version | Release date |
| 2.7.1 | June 8 , 2010 |
| 2.7 | February 13 , 2010 |
| 2.6 | May 12 , 2009 |
| 2.5 | January 23 , 2008 |
| 2.4 | March 28 , 2007 |
| 2.3 | July 11 , 2006 |
| 2.2 | March 9 , 2005 |
| 2.1 | April 22 , 2004 |
| 2.0 | December 22 , 2002 |
| 1.1 | January 17 , 2002 |
| 1.0 (20010228) | February 28 , 2001 |
