We had a failover of our databases earlier today as the main server crashed.
After this was brought back up and made the live server again, most of the clients server setting updated from outlook-dr.domain.com back to outlook.domain.com.
But there are a few Outlook Clients that haven't updated back and now don't work as they are trying to connect to outlook-dr.domain.com, but when running get-mailboxdatabase and checking all the databases are pointing at outlook.domain.com.
If I go into the clients in question, i cannot update the server setting either as it is greyed out, but if I create a new profile for the user it is then fine.
Can someone help.