Recently I installed a watchguard xtm 21 appliance. Everything went fine until I updated from Office 2007 to Office 2010.
Behind my watchguard appliance I've got an Exchange 2007 server, which I was able to reach with Outlook 2007 (when working remote over ssl vpn connection).
Now with Outlook 2010, working remote over ssl vpn, I'm not able to reach my Exchange server.
Do I need to change some settings, (port configuration?) specific for Outlook 2010 on my wachtguard appliance?