Postfix and qmail are both written with security in mind. There are
much fewer exploits for them than sendmail. I prefer Postfix, I find
it easier to understand the configuration. However, not enough to
replace a working qmail installation. Sendmail I find hard enough to
configure, that I either refuse to accept responsibility for
administration or would quickly convert.
Postfix is several programs, so it can't be compromised in one gulp.
Most can run non-root, in a chroot jail, so even it they are cracked,
the attacker doesn't get much. The configuration file is readable,
even if you haven't read the docs.
IMHO,
Jeffrey
Quoting Robert Barish
Hello Everyone: I have a quick question. I am currently using SuSe 7.3 and sendmail for my email server. I have configured sendmail and been using it just fine. But I was wondering if maybe there is other viable email servers out there to replace sendmail. I would love to hear your recommendations on other alternatives and why. Bob
-- I don't do Windows and I don't come to work before nine. -- Johnny Paycheck