Just did a fresh install of the OpenSource GA version on FC4. I set Zimbra-Apache to run on port 8081 since it's on the same machine as my webserver. I opened up ports 8081, 25, 110, 143, 993, 443, 995, 7071, 7025, 389 at my router and those same ports on the FC4 machines firewall.
I'm able to send mail but not receive it. I've been at it all day. Please help!