Mailman & Multiple MTAs

[rsharpe]

My Zimbra setup utilizies two MTAs. We have also implemented mailman mailing list manager. What is the best way to make the mailing lists available to the secondary MTA, should I just go ahead and install and configure mailman on the secondary MTA. I'm not worried about archiving. Or is there something better that Zimbra or Postfix can do.

[KevinH]

If you put the mailman MTA in front then it can handle the list expansion and forward the right email to Zimbra. Otherwise yes you'll need mailman on both MTA's.