meillo@25: MTA comparision
meillo@25: ===============
meillo@25: 
meillo@25: Candidates:
meillo@25: - sendmail
meillo@25: - postfix
meillo@25: - qmail
meillo@25: - exim
meillo@25: - masqmail
meillo@25: 
meillo@25: - (exchange, ...)
meillo@25: 
meillo@25: 
meillo@25: Author
meillo@25: ------
meillo@25: sendmail: Eric Allman and others, now Sendmail Inc.
meillo@25: postfix: Wietse Venema and many others
meillo@25: qmail: Daniel J. Bernstein
meillo@25: exim: Philip Hazel
meillo@25: masqmail: Oliver Kurth
meillo@25: exchange: Microsoft Corporation
meillo@25: 
meillo@25: 
meillo@25: License
meillo@25: -------
meillo@25: sendmail: Sendmail License
meillo@25: postfix: IBM Public License
meillo@25: qmail: public domain
meillo@25: exim: GPL
meillo@25: masqmail: GPL 
meillo@25: exchange: MS-EULA
meillo@25: 
meillo@25: 
meillo@25: First release
meillo@25: -------------
meillo@25: sendmail: 1983
meillo@25: postfix: 1999
meillo@25: qmail: 1995
meillo@25: exim: 1995
meillo@25: masqmail: 1999
meillo@25: exchange: 1993
meillo@25: 
meillo@25: 
meillo@25: Lines of code (with sloccount on debian packages)
meillo@25: -------------------------------------------------
meillo@25: sendmail: 93k
meillo@25: postfix: 92k
meillo@25: qmail: 18k
meillo@25: exim: 54k
meillo@25: masqmail: 14k
meillo@25: exchange: (no source available)
meillo@25: 
meillo@25: 
meillo@25: Architecture
meillo@25: ------------
meillo@25: sendmail: monolitic
meillo@25: postfix: modular
meillo@25: qmail: modular
meillo@25: exim: monolitic
meillo@25: masqmail: monolitic
meillo@25: exchange: (unknown)
meillo@25: 
meillo@25: 
meillo@25: Design goals
meillo@25: ------------
meillo@25: sendmail: flexibility
meillo@25: postfix: performance and security
meillo@25: qmail: security
meillo@25: exim: general, flexible & extensive facilities for checking
meillo@25: masqmail: for non-permanent internet connection
meillo@25: exchange: groupware
meillo@25: 
meillo@25: 
meillo@25: Market share (by Bernstein in 2001)
meillo@25: -----------------------------------
meillo@25: sendmail: 42%
meillo@25: postfix: 1.6%
meillo@25: qmail: 17%
meillo@25: exim: 1.6%
meillo@25: masqmail: (unknown)
meillo@25: exchange: 18%