Why would users Outlook lose access to Exchange during SP3 install?
I have 3 servers in a DAG (running SP2 Roll-Up 6). Each having one active DB. I moved DB3 from Exchsvr3 to Exchsvr1. I put Exchsvr3 into maintenance mode. I install SP3. During the installation anyone on DB3 lost access from Outlook. Seemed
to happen when it was updating the CAS and HUB roles
Dont know why this happened. I thought that is the whole purpose being able to put them into Maintenance mode.
