Hi All,
We have a single exchange 2013 server with Mbx and CAS server co-located. We want to build a DAG and CAS in high availability. I have built 2 new exchange 2013 server with DAG in the same site and started moving the mailboxes from the old server to the DAG.
I have started bulding 2 CAS servers in NLB in the same site. the old server's internal ulrs and oultook anywhere is imail.contoso.com. I plan to assing outlook.contoso.com for the new CAS server's internal url and internal outlook anywhere. During this phase how do i avoid outlook clients connecting to the new CAS servers. When i completely build the CAS i want all the oultook client to connect only to the new CAS server, how do i do that?