What ports need to be open on the firewall/NAT system to allow the Zimbra product to work on the world wide web. I have Zimbra working perfectly on my LAN, however, I get the following application error when accessing it from the web:
An unknown application error has occurred. Please correct any errors and retry. If the problem persists, please contact your System Aministrator. (service.FAILURE)
I have read other postings about need serveral 7000 ports open. I just want to know for sure which ports to open so I do not compromise security.
Thanks in advance.