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Retiring an Exchange 2003 Server

In our organisation we have an exchange 2003 SP2 server and due to a hardware issue we have to retire our first exchange server. I have built a new exchange 2003 SP2 server and i want to move all users to the new server.
Can i just move all users over using exchange tasks and then turn on smtp and redirect the firewwall to port 25 of the new server. Now can i just turn off the old exchange server (after i dcpromo from the ad of course).
Any advice?
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3 Solutions
Lee W, MVPTechnology and Business Process AdvisorCommented:
Your Exchange Server is a DC?  Not recommended.

This may help you:

Since you are already at exchange 2003, you can skip the steps they may mention regarding preparing for 2003.  But other aspects, like moving public folders and the like, I expect, are the same.
Yes, it should be quite simple.  You already know about the 'Exchange Tasks' part, but remember that there may also be Public Folders on the old server, too, and it may be responsible for running recipient policies.  You will find, though, that you will be prevented from removing the server if a crucial role is not reassigned.  I would leave the dcpromo for a few days, though, to make sure.  If you have to bring it back into operation, the dcpromo will have wrecked Exchange.

Also, there may be other ports beside 25: 80/443 for OWA, 110 for POP.  It sounds like you know what to look for, though.
Since you have a new hardware for your exchange server 2003 you would want to move all the resources from the old hardware to new one.
So I guess you would want to use:

How to remove the first Exchange Server 2003 computer from the administrative group

This KB will help you move all the resources from old to new and finally decommission the old one.

Let me know if it helps

I am also assuming the you have installed the new hardware exchange by joining the old exchange server  ie now both the exchanges are in the same Administrative group.


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