I'm a former Exchange admin just getting used to Zimbra, and I have one issue that I can't seem to figure out, and I don't know enough about it to make an educated search.
My Zimbra server is housed on the same server as my company Asterisk server running CentPBX 1.3 (CentOS 5). Zimbra works great for my corporate accounts and all mail flow seems to be working without any problems. The one issue I'm having is with my Postfix queue not delivering local/system mails and sending out e-mails from the Asterisk server (voicemails, etc). I currently have 31 items in my queue (/var/spool/postfix) and understand that the queue cannot send anything because Postfix is not running (outside of being the Zimbra user), so what is the workaround? I'm sure I'm not the first guy with this issue, but was not having any luck finding a solution in the forums or Google because I think my search terms probably sucked.