I have created a new exchange 2010 email address policy that is linked to an new OU.
The policy sets the users primary smtp address to be that of our companies new domain name.
If I create a new user in that OU and create a mailbox for them, when you log in as that user and open outlook, the user's account name appears with the new domain name (in the left hand column above Inbox etc).
However if I move an existing user who is in a different OU to the new OU and then apply the same email address policy, their primary smtp address is changed to the new domain name, but when you log in as that user and open outlook, the user's account name still appears with the old domain name, which was set when the account was originally created.
Is there a way of changing the account of a pre-existing user to that of the new domain name, so that it appears correctly in Outlook?