Hi,
I'm running Zentyal 4.2.2 Dev
Outlook 2007 (on Win 7 Enterprise) auto-filled the profile as normal using AutoDiscover but I was unable to open the Global Address List.
I checked the Exchange Proxy Settings on the profile and saw the URL was set to "autodiscover.mydomain.local" instead of the actual FQDN of the Zentyal box.
I changed the setting in Outlook and it works as it should.
I can't see a setting to fix this in Zentyal and nothing in the Forum, hence I'm opening posting this on the Forum and creating an issue ticket.
Issue Tracker:
https://tracker.zentyal.org/issues/4890