I switched over to postfix. I assume I need this to relay mail to the exchange server to delivery to outlook clients. I can see the host go down and work perfect in nagios but I never get an email. I choose the satillite system.
if it worked why did you switch? 
check the /var/log/mail.info or mail.error logs and see what happens? do the mails appear in the log? are there any errors?
It has never worked. I tried it with my qmail server and never got it to work even with changing the scripts. All I want is an email or it’s pretty much a worthless system for me. Hate to spend $2000 for a monitor program if this one works, but so far no go.