[Mailman-Users] Mailman Just Stop Working

Im using a qmailtoaster as described here: http://wiki.qmailtoaster.com/index.php/CentOS_5_QmailToaster_Install

My developers have insisted on using mailman instead of EZMLM. Its all the same to me. I have installed mailman into /home/mailman/mydomain/

Everything was working fine. I seriously have no idea why mailman stopped working. It was like one day, I got a call, and it was no longer working. when i stop/start/restart with mailmanctl, things seem fine, no errors. The web interface appears to work fine. I have a stage server that I test all updates and new ideas on just to be sure I dont brick my production mailserver, and mailman works fine on that box.

Any suggestions on how to debug this are welcome.

Chris Penn...