My mailbox Exchange server is Exchange1.kam.co.uk, and I am in the process of building a new one Exchange2.kam.co.uk. I am planning on moving all the mailboxes to the new server and removing it from ESM. Public folders etc will not be affected as they are on a different Exchange server.
Currently, the Outlook profile of all users is pointing to Exchange1.kam.co.uk. Instead of changing these profiles, is it possible to do something in DNS so that requests are forwarded to the new server. For instance, I was thinking of creating a CNAME record, Exchange1.kam.co.uk that points to Exchange2.kam.co.uk...however, there is obviously already an A record of Exchange1.kam.co.uk that points to 192.168.20.1 so not sure if this will create confusion?