Question: Will an Exchange 2013 server work with an Exchange 2010 Hub Transport and Client Access server?
My environment consists of a single Exchange 2010 server acting as the Mailbox, Hub Transport and Client Access server. I would like to build out a separate Exchange 2013 Mailbox server (Mailbox only) and migrate the Exchange 2010 DBs (or the user mailboxes) to the Exchange 2013 Mailbox server. Then remove the Exchange 2010 Mailbox role leaving only the Exchange 2010 Hub Transport and Client Access server roles on the original server. After a week, if everything is running smooth, then I will upgrade the Exchange 2010 Hub Transport and Client Access server to Exchange 2013 - keeping the Exchange 2010 Hub Transport and Client Access server separate from the Exchange 2013 Mailbox server.
Any comments and advice would be greatly appreciated.