[CentOS] Kind of OT: internal imap server

Wed Aug 23 03:50:41 UTC 2006
Peter Eisch <peter at boku.net>

Check out qpsmtpd and use it as an SMTP relay or even run it on your public
MX sever.  You could even run it under apache if you'd like.

http://www.oreillynet.com/pub/a/sysadmin/2005/09/15/qpsmtpd.html

peter