Access to Mailbox on another Domain

[vb8304]

If you have 2 trusted domains, A and B, and Joe was setup on domain B can he logon to Domain A and access his e-mail on Domain B through Outlook? Would they need to be setup with same username and password? Joe was initially setup in Domain B but is now part of Domain A and I suppose we could move his mailbox from B to A but that may not be possible.

Also, the admin for the network is on Domain A and does not have rights on the exchange server in Domain B.
Thanks.

Vince.

 

[brontosaurus]

if the two domains are trusted, can't you give his Domain A ID User permissions on any mailboxes he needs? Maybe I'm misunderstanding, there were lots of A's and B's flying around...