Thanks Sam, I changed the MX record and all is well. Now all the mail is getting passed from ns.compusense.com running qmail to mail.int.compusense.com running qmail. I can read my mail with an IMAP client no problem. Is there a standard way to configure the IMAP client in terms of outbound mail? Should I set the outbound SMTP server to be the internal machine mail.int.compusense.com, or the firewall machine? Right now I have the IMAP clients set up as having mail.int.compusense as the outgoing SMTP server and mail seems to be queueing up. I'm getting can't establish connection with SMTP server. I can't seem to find anything in the FAQs about a typical firewall setup. There's a couple articles in the archive, but I couldn't extract anything from them. Thanks, jason.
