Having trouble gettng my head around this one. I have a customer running SBS 2008. Let's say their external domain name is "xyz.com" The external DNS records for that domain point to their server, so all mail to that domain is sent there. They just purchased a new domain name, say "abc.com". They now want to use that for their email. I am fine with pointing the new doamin to the server and changing the domain in SBS, but they also want to continue receiving mail from the old domain for a while; how can I set it up for mail from that one to also be delivered?