We have both Exch 2007 and 2010 installed in a single domain and I testing to make sure that when I switch DNS to point to the 2010 CAS instead of 2007 users can still get to their mailboxes. I am using a hosts file on my desktop machine to do the testing. (I'mrepointing the primary CAS name, POST, and autodiscover). OWA seems to be fine and Outlook 2010 for Windows is fine. Two of my Mac clients (Entourage 2008, EWS and Outlook 2011) are not able to connect to my 2007 mailbox. They can connect to 2010 mailboxes. It looks like they are unhappy with the data coming out of EWS/exchange.asmx.
My question is, do I have autodiscover configured wrong, or is my test invalid?
Thanks
Steve Moss
Pomona College