Last year we had one active directory domain. For all intensive purposes, let’s call it abc.com. With that domain, we had one IMail domain, mail.abc.com, with proper DNS records and such.
Six months ago, our company decided to branch off. So we created another IMail domain, xyz.com, but we still only used one active directory domain. Currently, we have one active directory domain, abc.com, and two IMail domains, mail.abc.com and mail.xyz.com. All our users are setup as POP3/IMAP through various e-mail clients, IE Outlook, Entourage, webmail etc.
We are currently setting up a Windows 2003 server for Exchange 2003 Enterprise. We set the server up as a domain controller for abc.com and went through all the other necessary steps. I’ve gotten so far as to setup two different mailbox stores and two different public folder stores for mail.abc.com and mail.xyz.com. Here is where my problem comes into play.
I don’t know how to specify, through active directory, the mail domain for specific users. I can’t have all the users be set as @abc.com when creating exchange mailboxes as their clients only know them through their @xyz.com address.
I guess what I am asking is how do I setup multiple mail domains, for @abc.com and @xyz.com, while the Exchange server is on the abc.com active directory domain?
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