+
−\chapter{Comparison of \MTA{}s}
+
−
+
−% http://shearer.org/MTA_Comparison
+
−% http://www.geocities.com/mailsoftware42/
+
−% http://fanf.livejournal.com/50917.html
+
−% http://archives.neohapsis.com/archives/postfix/2006-07/1762.html
+
−% http://www.oreillynet.com/lpt/a/6849
+
−% http://www.mailradar.com/mailstat/
+
−
+
−\section{First release}
+
−sendmail: 1983
+
−
+
−postfix: 1999
+
−
+
−qmail: 1996 (first beta 0.70), 1997 (first general 1.0)
+
−
+
−exim: 1995
+
−
+
−masqmail: 1999
+
−
+
−exchange: 1993
+
−
+
−
+
−\section{Lines of code (with sloccount on debian packages)}
+
−sendmail: 93k
+
−
+
−postfix: 92k
+
−
+
−qmail: 18k
+
−
+
−exim: 54k
+
−
+
−masqmail: 14k
+
−
+
−exchange: (no source available)
+
−
+
−
+
−\section{Architecture}
+
−sendmail: monolitic
+
−
+
−postfix: modular
+
−
+
−qmail: modular
+
−
+
−exim: monolitic
+
−
+
−masqmail: monolitic
+
−
+
−exchange: (unknown)
+
−
+
−
+
−\section{Design goals}
+
−sendmail: flexibility
+
−
+
−postfix: performance and security
+
−
+
−qmail: security
+
−
+
−exim: general, flexible \& extensive facilities for checking
+
−
+
−masqmail: for non-permanent internet connection
+
−
+
−exchange: groupware
+
−
+
−
+
−\section{Market share (by Bernstein in 2001)}
+
−sendmail: 42\%
+
−
+
−postfix: 1.6\%
+
−
+
−qmail: 17\%
+
−
+
−exim: 1.6\%
+
−
+
−masqmail: (unknown)
+
−
+
−exchange: 18\%
+
−
+
−
+
−
+
−
+
−1) complexity
+
−
+
−2) security
+
−
+
−3) simplicity of configuration and administration
+
−
+
−4) flexibility of configuration and administration
+
−
+
−5) code size
+
−
+
−6) code quality
+
−
+
−7) documentation (amount and quality)
+
−
+
−8) community (amount and quality)
+
−
+
−9) used it myself
+
−
+
−10) had problems with it