Adding a brand new domain does not work either.
The new physical server has the exact same configuration as the old server.
I know how the import utility works - I've used it hundreds of times. My problem is that DNP still wants to administer the email on the old server and not the new one and I don't know why. When you create a new mail service in DNP, there isn't much to set as far as configuration goes. You select a provider and an IP address and that's pretty much it.
The only thing that's different is that the new server is 64-bit while the email software installed is itself 32-bit. In Windows the default install path to a 32-bit program is C:\Program Files(x86) so I wonder if that might have something to do with it. But, shouldn't the API take care of that?
I any event, I moved DNS and Mail. DNS works fine, mail does not.