I am in the process of developing a proof of concept deployment of Exchange 2010 in a MIT Kerberos Realm. So far we have been able to setup a trust between the AD Domain and the Kerberos Realm, but can't access mailboxes on exchange with the Kerberos logins. We have created users in the AD Domain that their Kerberos username and realm specified in the Name Mappings, but we still have to login using the password created when setting up the user in AD. Any help, ideas, comments, or suggestions would be greatly appreciated. Thanks in advance.

Wrong post this is for exchange server 2007 deployment .syed.arsalan

Hi,This is the Exchange 2007 forum, please post it on the below link for the Exchange 2010 issue.http://www.microsoft.com/exchange/2010/en/us/support-options.aspxThanksAllen