I need help. I have found the autodoscover.xml queries are failing and I am unable to view Outlook 2003 calendar free and busy using Outlook 2007. We have also tried entering autodiscover.domain name.com plus the CNAME to DNS and it did not work. Can someone help with a resultion. I would greatly appreciate it.

Can you try Test-OutlookWebServices to diagnose the issue? How to Diagnose Availability Service Issues http://technet.microsoft.com/en-us/library/bb124805.aspx Also you can hold Ctrl and right-click on the Outlook icon located in your system tray, select Test E-mail AutoConfiguration to test the same from client side. Post the error here..Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com