I am getting ready to migrated 2003 to 2010 Exchange and I have a few basic questions.
• Once I add the new Exchange 2010 Server (without any mailboxes being migrated yet), which server should incoming email point to?
• How will existing Outlook clients get directed or pointed to the new server?
• How can “owa.company.com/active-sync devices” continue to operate after a mailbox is migrated? Does this mean I have to migrate everyone at once, then repoint the address translation to the new server?