In the process og migrating from Ex2007 to Ex2013 we faced an odd problem:
The Ex2013 CAS seems to Proxy/redirect to the Ex2007s old servername, not the New "Legacy.domain.com" name now defined in all the Ex2007ths Virtual directories. This seems to result in a loopback when the old Ex2007 servername "mail.domain.com" DNS is switched to point to the New Ex2013 servers IPaddress. The Connection status at the Outlook Clients do not show any sign of the "Legacy"name and pops up neverending credentials windows.
Did the followin for testing: On the New Ex2013 server I edited the hosts file so that "mail.domain.com Points to the ip of the Ex2007 server and all is "well", Outlook Works like a charm for all mailboxes on both old an New server.
So what have I stumbled upon here, doesn't the Ex2013 server pick up the Legacy name or have I badly misunderstood something With DNS settings during coexistence? Please kick me in the right direction,
Thanks.