After a recent consolidation we needed to give users in a seperate (but trusted) domain access to mailboxes on an exchange 2010 server. The below code (copied from https://social.technet.microsoft.com/Forums/exchange/en-US/d2f051f0-9649-4ac0-8e82-9783a34d0eed/how-do-you-grant-full-mailbox-permissions-to-someone-in-a-different-domain-in-exchange-2010?forum=exchange2010 – by J. Duke Rogers Communicore Technologies & Triangle Forensics) does … Continue reading Giving permissions in Exchange for users from a trusted domain.