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Setting up new domain in exchange server 2007

I have an exchange server set up for a particular domain xyz.com.  I bring a new domain online called abc.com.  I have added that domain to the list of accepted domains.  Then when I go to add a mailbox from that domain, I cannot select a user from a domain other than the original domain xyz.com.  I have tried setting up an email address policy, and that did not get me there either.  

I imagine there is a way to have two disjointed domain serviced by the same exchange server, but I havent been able to figure it out yet...
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WhatupE
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WhatupE
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1 Solution
 
kdagliCommented:
If both the domains belong to same forest, then run setup.com /preparedomain:<Domain name>.

Else, you need to have 2 way Trust between the domains and create a 'Linked' mailbox on the Exchange 2007 server.
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Alan CoxSr. Systems Engineer | Lead Microsoft CIE Qualified FacilitatorCommented:
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WhatupEAuthor Commented:
kdagli,

In setting up a 2 way trust between the domains, am I not in effect creating a forest?
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kdagliCommented:
Setting up a 2 way trust does not end up in creation of a New AD Forest.
As I mentioned in my post, IF both the domains belong to the same AD forest => Run Setup.com /prepareDomain:<Domain name>.


If the new domain (abc.com) belongs to a different AD forest then you NEED to create a 2 way Trust between the domains and prepare the abc.com domain for Exchange recipients.

Also note, adding domain (abc.com) in the "Accepted domains" list will not enable the Exchange to create mailboxes for users residing in the other AD Domain.

Adding abc.com to the Accepted Domains list will only allow the the Exchange server to accept emails for abc.com domain.

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Alan CoxSr. Systems Engineer | Lead Microsoft CIE Qualified FacilitatorCommented:
Sorry, but if the other domain is in another forest completely, you don't prep the forest. You create a resource forest on your exchange server.. create the trust, conditional forwarding in DNS and create linked mailboxes. You will have to add accepted domain and a new email address policy for users that are in the other forest. The link I provided describes this in detail. I do this all the time.
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WhatupEAuthor Commented:
If I have already set up exchange on one of the domains, am I going to run into any issues moving it to the resource domain?  How exactly would one do that?
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WhatupEAuthor Commented:
acox65807,

If I don't want to move exchange to a new domain (having a hard time finding a good way to do this), can the domain that it currently exists on just become the resource domain...and just establish a trust with every other domain that comes along?  The only difference here is there will be mailboxes on the "resource" domain...would that work?
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WhatupEAuthor Commented:
Alright, I ran through the link...and the problem with this approach is it creates an account with the email address user@msexchange.local, instead of user@xyz.com.  This is no good.  Am I missing something?
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