Client has a new install of SBS2003. During setup of SBS a few months ago, user did not know what their eventual DNS name would be (company changing partnerships - its an accountant). So we picked something, hoping to be correct. Lets call it paulcuddycpa. Set up SBS with all the wizards to be:
Server name: pcuddy01
Win domain name: paulcuddycpa
DNS name: paulcuddycpa.local
Users (5) began using server, and exchange for local email. They continued to pop email using outlook from their old email addresses located on some ISP servers. All was reasonably well...
This old name was never registered as a "Real" internet domain name. Now that he has changed partners, he has a "real" name he wants to use. cuddyandwardcpa.com is now registered at godaddy.com. I wend ahead and re-ran the internet connection wizard in SBS and told it that the exchange dns name was now cuddyandwardcpa.com. I pointed the godaddy MX record at the server's IP address, making no other changes at godaddy (A record still ponited to godaddy etc).
It didn't see to totally work, as outbound email would come out with the wrong address (either paulcuddy.local or some other address that the local sysadmin had re-run the wizard with). I eventually found that the default sender policy had a whole slew of addresses in it, so I paired it down to just paulcuddycpa.local and cuddyandwardcpa.com (default). Each user was set up the same (both addresses, and nothing else).
This seemed to work for about a day. Now however, whenever any user sends email TO them from outside (say yahoo) they get a non delivery message stating:
Arrival-Date: Mon, 20 Sep 2004 11:32:15 -0400
X-Display-Name: Paul Cuddy
I see that this is a looping problem - buy WHY? Doesnt the server see that it's supposed to be handling the mail for cuddyandwardcpa? It appears to be redirecting (or attempting to) to itself. Where can I look, and what can I do.... I've thought about renaming the domain for the whole AD and server to cuddyandwardcpa but Im not sure how to do that, and wether it would screw things up even worse.
ANY help, or pointers, or even if I can provide more info, is GREATLY appreciated as I need to have this working again asap.
*Remove nospam and parens to email