I have added a SBS 2003 server to a SBS2000 domain - made it the operations master on everything. Now mailboxes on the SBS2000 Server cannot get mail delivered to them anymore!
Can they not co-exist? I dont have to make the new one a front-end server for this to work do I?
I've never had to install a SBS2003 on a 2000 domain before.
Moving maiboxes to the new SBS2003 server makes the mailbox work but the postmaster comes back with UNDELIVERABLE messages when trying to send emails to mailboxes still on the SBS2000 Server.