I just migrated to a new 2012R2 Essentials DC from an old 2012R2 Essentials DC that was having issues. I am also running Exchange 2013 (Both exchange and DC are virtual on 2012 Hyper-V). I have one account that for some reason tries to log in with the folder redirection that was set with the old DC in group policy. For some reason it wont pick up the new one.
Can I just delete the user account from essentials dashboard and recreate it?
If it delete and recreate can I reattach it to the same exchange mailbox?
I can provide whatever other information you require.