RE: [gentoo-server] Web hosting for 75k+ users

>Should I use qmail or postfix and why?

Ah, I would stick with Postfix because it's actively maintained (IE the
source code is dated post 1998 for the last official version) and it can
do things out of the box that qmail can't do without a hogwash of
patches from many different third party sources.  qmail isn't part of
the openBSD ports tree anymore, which should say something.

Take a look at:

http://www-dt.e-technik.uni-dortmund.de/~ma/qmail-bugs.html

and of course, www.postfix.org ;)

Chris