[ Thanks to Roberto
Alsina for this link. ]
In this article, I will explain how to solve, at least partly,
these problems, using a replacement for qmail’s SMTP server, called
qpsmtpd. All commands given are as I used in a Red Hat 8.0 system.
I doubt it, but some may need to be changed in other distros, so
check the docs of each command if you don’t understand what a
command does. Remember, you don’t know me, I may be evil or
dumb!“I also assume that you already have a working, operational
qmail setup. If your qmail is not working, following this tutorial
will only break it further, so stop right now and fix it…!”