We are currently in co-existence mode (Exchange 2010 and 2007) but 99% of mailboxes have been migrated to 2010.
I am an Org Admin and have other elevated rights (domain admin, etc).
Full Access permissions (by security groups) are set at the database level. Every time a mailbox is created, those security groups are added to the Full Access permissions.
In 2007, i was able to create another user's mailbox profile on my Win 7 Ent, 2010 Outlook machine. I was never prompted for credentials.
Now, in Exchange 2010, I want to open another users mailbox, and I am prompted for credentials and cannot view the mailbox.
Can someone suggest why this is the case? I know a lot of security has changed in 2010, but I do have the necessary permissions, so I am stumped.
Thanks.