Hi,
Just to clarify I want him to be able to see ALL user mailboxes in his outlook (which he has hosted outside of our organisation and not in the office 365 setup)
So when he opens outlook he will have his normal mail setup and exisiting mailboxes PLUS mailboxes that he can open and see new emails, email sent etc for all staff in our organisation that are on the office365 hosted system.
I don't need him to logon to the admin control panel, I just want him to be able to see the mailboxes in his own outlook, so he can have a top level view of what is going on in the organisation.
What is the OPTIMUM setup for him?