Configuring exchange for a new trusted domain

We have an exchange server that is part of the lincoln-int.net domain and is working perfectly. We have recently aquired another company named Company1.net. We have set up company1.net with its own domain and have established a trust between Company1.net and lincoln-int.net. Is there a way to have the users from Company1.net establish an e-mail box on the exchange server that is located on lincoln-int.net domain?
ArcherXAsked:
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isaman07Commented:
Wow, that's something i never did or touch, but logically, you should be able, although i don't recommend that.
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mass2612Commented:
Hi,

As isaman07 said yes it can be done. Normally I would have the two domains in the same forest as child domains but not sure if you have two separate forests. I would suggest that at the least you configure the two different orgs mailboxes on seperate storage groups and mailbox databases.

Multiple Forest Considerations in Windows 2000 and Windows Server 2003
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/directory/activedirectory/mtfstwp.mspx

Hosting Multiple SMTP Domains on Exchange 2000
http://www.msexchange.org/tutorials/MF010.html
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isaman07Commented:
I'm sure they have two different forests, since theyhave just required that company. Anyways, if i was in the same situation, iwouldn't do it that way, meaning diomain and child domain, rtoo much of headaches, but i would've created a new organizational unit for the new company, created new user account for them, and of course mailboxes. They can still access their exchange account through RPC over HTTP, secured, fast and full exchange capabilities.
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Matthew MillersCommented:
Yes, create a disabled mailbox in the target forest.
Then configure the source forest user as the associated external account
http://support.microsoft.com/kb/322890

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Matthew MillersCommented:
How did you go with this?
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isaman07Commented:
Us the so called experts are doing this for free, meaning answering your questions. We would appreciate if you keep us informed with the situation and the solution if you found one. Atleast we would be able to help others suffering from the same problem the next time around, or you yourself will help all of us by posting the solution.

harout
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ArcherXAuthor Commented:
This is the solution that I used:
http://www.msexchange.org/tutorials/Shared_Hosting_Exchange_2003_Part1.html
I used this ony for temproary purposes until management approves an additional exchange server which I will then move all of the Company1.net users to.
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Matthew MillersCommented:
Fair enough, so users are logging in twice?
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