Domain Trust / Exchange

i have setup a oneway trust between two organzations. DNS is resolving find and the trust has been validated. how do i configure the security permissons to allow the users of y domain access their email on z domain? Right now they are logging using creds of z domain.
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DowntownITAsked:
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florin_sCommented:
Hi,

Here is an article that can help:

http://support.microsoft.com/kb/321721
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DowntownITAuthor Commented:
i dont seewhere in the article is authenticating thru a domain trust to an exchange server. Exchange is setup with the other domain, i am just looking to simplify there login to one
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MesthaCommented:
You have to create accounts in the domain with Exchange installed in it. As mailbox = account.
Once you have done that, grant the users in the trusted domain the permissions Full Mailbox Access and Send As permissions. They will then be able to access Outlook and use it.

Simon.
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DowntownITAuthor Commented:
Thanks for the comment. I think the problem is that when i go to the user account i need to grant the trusted domiain to i dont see where to add the the trusted domain user
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MesthaCommented:
You have got the trust the right way round?
If the domain doesn't appear then something is wrong with the trust.

Simon.
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DowntownITAuthor Commented:
Okay after my long weekend lets see...

I recreated the trust and found out a few things, I cannot see the trust with my computer running the adminpak. I can see it on the domain controller but I dont have the exchange tools installed on it so I can't modify the exchange security to add the trust. I will add the tools to the DC and repost the results.
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DowntownITAuthor Commented:
I added the tools on the DC and now can add the trust to the exchange permissions. I added the user to the existing mailbox with the full mailbox access right. I configured the terminal server to allow the user and was able to log on to it using the trusts credentials. When I go to setup outlook it will not accept the username and password. Is there somewhere else i need to grant permission to?
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DowntownITAuthor Commented:
i had to add the trust to the dc and the mail server security tab. it is working YEA!!!!!!!!!!
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