We are in the process of mgrating to Exchange 2010 and are experiencing an annoying issue with OWA through Exchange 2010. When a user logins to OWA and their mailbox is still on Exchange 2007 they get prompted twice for login. Is there anyway to correct this issue? Thanks, RJ

Hi, Are users accessing OWA from their AD login machine ?.Anil

Yes.

Hi Exchange Freak, Please refer to below thread, http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/bfec24e9-887d-4302-811b-a4036921690a Some other information: http://technet.microsoft.com/en-us/library/dd351133.aspx Regards! Gavin TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi Exchange, Any update for your issue? Regards! Gavin TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.