Exchange setup question?

Hello everyone,

Right now we have two domains and two locations.  However, one of the locations will be breaking off, and starting their own company.  Domain A has the exchange server, but after we leave the company/forest we will not have access to it anymore at Domain B.  At Domain B we will be buying a new exchange server just for Domain B.  How ever all the computers at domain B are configured for Domain A exchange server.  The new Exchange server will have a new IP address along with new accounts.  Will I run into any problems that I should be aware of?  I know I will have to go around and he setup outlook at each computer, but is there anything else that might get messed up in the network?  Or anything else I need to change so that Domain B now points to our own exchange server instead of Domain A exchange server.  


Thanks,
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bran0923Asked:
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SembeeConnect With a Mentor Commented:
You need to break the forest up before you install Exchange. You can only have one Exchange org per forest.

Considering the setup at the moment, I would be very tempted to build a new domain for the site that doesn't have Exchange. Then put Exchange in to it and run it for a week or so. That will give you time to create user accounts, email addresses etc. It would also mean you can have a clean break and setup things how you want to set them up. Naming conventions, Windows domain name etc. Get rid of all the legacy stuff from the other domain.

Then switch over, moving the machines in to the new domain and setting up Outlook fresh.
On the other domain, get the administrators to put in forwarders on the old email addresses to point to the new email domain. Once you have removed all of your workstations and servers from the other domain, they can do what they like.

Simon.
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SembeeCommented:
Are these domains in the same forest, or is it two separate forests?
If separate forest, then you are effectively doing a new Exchange installation. Therefore each client will have to be configured individually (either via a script or manually). I would probably suggest manually so that the old Outlook profile can be removed and you can start again.

Data will have to be exported from the existing server, using exmerge, then exmerged in to the new server.

Simon.
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bran0923Author Commented:
These domains are in the same forest now, but will not be after the company leaves.  We will have new email address for all the users at Domain B.  
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bran0923Author Commented:
Do you know if there is a way to tell which forest your domain is in?  Like I said i'm not to sure if Domain B is even in Domain A forest.  I just think it is right now.
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SembeeCommented:
You have to look in the AD management tools. AD Domains and Trusts should show you. I haven't got access to a multiple domain site at the moment, and cannot recall off the top of my head what it looks like.

Simon.
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bran0923Author Commented:
Under Domains & Trusts I only see Domain B.  Under the trusts tabs I don't see any domains.  The only really place I see thier exchange server is in our own DNS.  
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bran0923Author Commented:
I also know every time I want to check my email in outlook, it prompts me for a user name and password.  I also have to put in the other domains name in there instead of ours.  
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SembeeCommented:
You maybe in separate forests then.

If you have the Group Policy Management Console installed anywhere (GPMC.msc) then that shows the forest and domains.

Simon.
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