Good morning,
There is a pretty thorough comparison of Exim, Postfix, Qmail, and
Sendmail in the Mailman FAQ. It has links to each homepage, and
covers ease of configuration, security, and performance.
http://www.python.org/cgi-bin/faqw-mm.py?req=all#4.2
This site has pretty good comparison, but it was last modified in
July 2002, so it is a bit dated in the rapidly changing world of
open source software development.
http://www.mailsoftware.cjb.net/
There is a link to an up-to-date comparison here, but I am unable
to get to it. I am including it because it is probably a
temporary (or perhaps even regional) problem.
http://librenix.com/?inode=1048
Here is the URL to the article:
http://shearer.org/en/writing/mtacomparison.html
As for spam, I would suggest the use of spamassassin (which should
work with any of the MTAs, and I am using it with Postfix
successfully). I get several hundred spams per week, and see very
few of them in my inbox anymore due to spamassassin. For a long
time, it caught 100% of the spam, but now the spammers have gotten
more clever, and I need to tighten things down a bit. But
spamassassin is easy to configure and setup. Do be sure to use
the provided spamc/spamd programs because using the perl version
will bog even a fast server down very quickly. Spamassassin can
be found here
http://www.spamassassin.org/
I hope this helps, and good luck!
bikerman |