I was wondering if people know what the port numbers are needed for the Outlook Connector to connect back to the client machines are?
We are trying to isolate our zimbra box so we can more safely open up connections to it from the outside, while minimizing the risk to the rest of the LAN. So we have place it behind a firewall that allows all traffic to the Zimbra box, but only allows limited traffic from the zimbra box out to the rest of the network. (25, etc..)
This works fine for all our clients (web based, pop3, imap, etc..) *Except* for the Outlook clients that use the Outlook connector. Those clients actually have Outlook crash on startup. BUT, when we allow all traffic from the Zimbra box out, the Outlook connector clients work fine. So I was wondering if anyone knows what ports need to be opened up to allow the Zimbra box to communicate with the Outlook Connector?
Thanks for your time,