mailman / qmail is not reciving emails directed at lists

[somecoolpc]

I am using FC3 and Plesk7.5 reloaded, I have had some problems getting mailman to start, but that was cured by deleting the list mailman and re-creating it.

The current problem is this : -

I create a list in plesk for domain.com, i get the list created email. I add 2 members and get the welcome to list message, but when a list member sends a email to the list it seems to just disappeare.. i can not find any qmail logs to help.. has any one here seen this problem??

Brett