two separate Exchange organization in one AD Domain.

I wonder if we can have one Active Directory domain with 2 sites, but each site has its own Exchange email organization.

for instance : Domain.corp is the AD domain (encompasses the East and West sites).
in site one, we 'll have as Exchange organization for the East site
and as Exchange organization for West site.

Thank you
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Mahesh SharmaCommented:
You can have only a single Exchange org within an AD forest which is created with schema update of domain

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Your best bet might be to create a separate mailbox database for each site, but as said you can only have one Exchange organisation.
jskfanAuthor Commented:
in a company i work with , they have one AD domain with 2 sites. each site has its own Exchange organization. in our Exchange server 2010 I do not see any Exchange servers of the other site.
You won't see the other server as it is a separate Exchange org, but I am not sure how it could possibly work correctly.
jskfanAuthor Commented:
I will do some search and find out
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