We recently set a http to https redirect on our Exchange 2007 server. For whatever reason this did not seem to take right, and in the process of a few people playing with it, we have seemed to have broken the Autodiscover service for XP clients using Outlook 2007. They are able to autodiscover and setup Outlook, however when trying to use the Out of office assistant or view free busy when scheduling, they error out. This is NOT the case for people using Vista or Windows 7, which leads me to believe that it is an issue with the way that the server is handling credential authentication.
The only reason that I mention Autodiscover is that if you run the "Test E-mail Autoconfiguration" on an XP client, it fails at the "Autodiscover to https://mycompany.com/autodiscover/autodiscover.xml
", where I can then run this on a Vista/7 machine at the same time with the same user configured through Outlook and I get a Success at the autodiscover.xml
We are not using SANs in our cert, and I know this could cause similar errors (though not for specific types of clients) but this was working OK before. We also have also had a similar permission problem on the /Exchange directory since the other day which prevented Entourage users from connecting... upon getting the credential connection settings correctly config back into the /Exchange directory we were able to get them working.
Thanks for any advise!