qmail

Anyone use qmail as an MTA? Have a setup that's been serving for years on Mandrake 8, suddenly it won't deliver local mail anymore to pop3 clients. Then it stopped sending and delivering for non-pop clients. I can telnet to port 25, and HELO/EHLO it, start and stop qmail, but it will not take any new messages or deliver anything already in the queue.

postfix

no, I got with the 21st century and use exim4 with spamassassin, razor, and courier

Nevermind, the cocks at our ISP had started blocking port 25 and never told anyone.