How can I use an email that isn't added to the local SBS 2003 / Exchange server (because there is no physical user) and allow it to go through?
E.g. let's assume the email is firstname.lastname@example.org, and domain.com is registered within Exchange. I don't have a physical user that uses or can use an alias for email@example.com. I'd like that to be forwarded via the STMP connector and etc to the Internet. Instead what happens is Exchange notices it handles domain.com, and replies back with mail delivery failure because it can't find that mailbox.