How do I grant delegate Access to a User in a different forest - trusted Domain.

So I have to two domains... separate Forest.   we recently connected them as Trusted Domains.  The Trust relationship seems to be working fine.

Now I need to add a User from Domain A and give them full access permission to a users mailbox  in Domain B.

when I am in Domain B  in in EMC  I click on "Manage Full Access Permission..."  click the add button    I get add users or group.. but I cannot see any users from Domain A.    therefor I cannot add them.

I've tried using FIM  and  syncing Global Address books.. but that only syncs contacts and still doesn't allow me to see users in Domain A from Domain B   using  EMC
Mark GuyerAsked:
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AmitIT ArchitectCommented:
Try out with EMS command. Like below:
Add-MailboxPermission "usermailbox" -User "domainA\user1" accessRights FullAccess
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Seth SimmonsSr. Systems AdministratorCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Amit (https:#a42088632)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

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