Citadel Groupware

I want to use fetchmail to get mail and pass to the Citadel mailserver, but it won’t start unless postfix of exim is started also. I have fetchmail correctly set up because it got mail and passed it successful after I set it up with the fetchmail gui. I tried to delete postfix, but then opensuse automatically downloaded exim. What do I need to do? Any help would be wonderful.

Okay, I have to find a way for OpenSUSE 11.3 to recognize the MTA built into citadel instead of requiring Sendmail, or Postfix, or Exim. It is the only I see for getting fetchmail to work without requiring one of them to be loaded and working. Any idea how I do this. This is a pretty big deal for me as I like this software for groupware and like opensuse.