Is there a way of reconnecting ‘MS Exchange’ server to Active directory without having to re-configure the ‘Ms Exchange’ from the beginning?

A client has ‘ISA 2004’ and ‘Ms Exchange 2003’ in his network running on ‘Windows 2003 Standard Server’. Ms Exchange is behind the ISA and not in the local network.
For his own security reasons a second (image) set of disks for each of these servers was created. At first both sets for each server worked. After leaving one set working for some time and then tried changing to the second set the servers stopped communicating with the active directory service. Now both sets give the same massage when trying to logon “Windows cannot connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found. Please try again later. If this message continues to appear, contact your system administrator for assistance.”.

After trying several things on ISA, we disjoined and rejoined it to the domain and started working without any problem. This can not be done with the Exchange server. The ‘Ms Exchange’ server was moved into the LAN but it still gives the same message. In a desperate attempt the account of that server in Active Directory was reset.

Is there a way of reconnecting ‘MS Exchange’ server to Active directory without having to re-configure the ‘Ms Exchange’ from the beginning?
Lambros LambrinosSenior Systems EngineerAsked:
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SembeeConnect With a Mentor Commented:
You could try a reinstall of Exchange. By that I mean choosing reinstall from Add/Remove programs. You will need to reapply the service pack afterwards.

However I was surprised that this imaging system worked. AD is very time sensitive, and the second image would be out of date very quickly afterwards - at most 30 days later when the domain machine passwords updated.

Simon.
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