Moving Existing Exchange Server to New Domain...

I have a small domain with one domain controller and one exchange server.  Last night the domain controller failed, hence, I had to build a new domain controller.  What is the best process of joining my exchange server from the old domain to my new domain (please note:  my old domain and new domain names are the same).  I have serveral user accounts on the old domain with e-mail that I must get access to.

Thanks!
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YortAsked:
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calliemanConnect With a Mentor Commented:
No it's not supported.

Look at this article
http://support.microsoft.com/default.aspx/kb/812453
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ormerodrutterCommented:
I don't think you can simply join your exchange server to your new domain. I wonder if you can.
I think the best way is to export all mailboxes from your exchange server using Exmerge, storing user mailboxes in .pst files. reinstall Exchange and create mailboxes for your users before import emails from .pst files back into Exchange.
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SembeeCommented:
You cannot disconnect an Exchange server from one domain and put it in to another one. The Exchange server databases and user accounts are tied to the domain. As already stated you will need to extract all of the data then rebuild the original machine. I would not suggest that you try and shortcut the process by removing Exchange then moving the server in to the new domain and reinstalling Exchange, as the permissions will not be set correctly. Wipe the machine and reinstall Windows and Exchange fresh.

Simon.
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mscnCommented:
Unfortunately you are in a major pickle, however if you read article http://support.microsoft.com/default.aspx/kb/812453 then you will see that the section titled "An unplanned server move that is caused by a site failure, a domain failure, or a disaster" shows you how to accomplish this.  Good luck!
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smeekCommented:
Do you have backup software like Backup Exec that backed up old server.  If so, you could set up your new server as a non-DC syste.  Restore AD/System State to it.  Restart as old server and Exchange should still work.

Some FAQs here.
http://www.backupexecfaq.com/faq/using/performing-a-remote-authoritative-disaster-recovery.html

Of course if no backup or feel more comfortable with Exchange, stay with the other suggestions.

Steve
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YortAuthor Commented:
Thanks to everyone who responded.  Greatly appreciate it.
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