My setup is Zimbra 5.0.6 and I'm trying to integrate zimbra with mailman lists
I followed this guide to get mailman working with Zimbra
[SOLVED] Zimbra+Mailman Howto
this helped too....
MailZimbra - Wikiousli
and all works well.
However, I need to find out whether it is possible to have the mail filter and moderation requests sent to the moderators' inbox instead of them having to go to the mailman web interface and act on various requests.