Currently i run Sendmail with DracD (for pop3) and ... damn it's slow!

Does anybody have a recomendation for email server setup where many users are added daily? I also need them to have pop3 access. I would like to give them ability to add accounts and alias's for their domain only.

Ideas?

I like Postfix and QPopper..

Your slowness issue may be due to your POP3 server trying to do rDNS. Which you may be able to disable. I did that on QPopper and login times went down drastically.

qmail and vpopmail ;)

Qmail (http://www.qmail.org) all the way.