Viewing another persons mailbox

Exchange 2003
Server 2003
Outlook 2003

From within Outlook 2003 users can select Tools>Email Accounts>View or Change>Change>More Settings>Advanced and add a users mailbox to their profile.  However, they cannot open the mailbox unless they have explicit permissions.  I would rather them not even be able to browse and see these mail boxes (much less add them to their profile even though they cannot open them).
How do I accomplish this?

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Ehab SalemIT ManagerCommented:
The mailbox names are viewable to all users inside the domain via the Global catalog.
I do not know if there is a way to do what you want.

But why do you want to implement such a thing?

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Have you tried using the Delagates tab: Tools>Options> Delagates tab.

We use this so that the support staff can access the email and calandars of the lawyers.
xmouserAuthor Commented:

Yes I have but this does not 'hide' the mailboxes.  I would be happy if I could just prevent a user from adding the mailbox to their client.  As it is now, they are able to add another user's mailbox to theirs but unable to open.  I just would prefer that they not be able to do this.  Once they understand that they cannot 'add' the box this will stop, I believe, some of the snooping that is going on.

Ehab SalemIT ManagerCommented:
I do not think what you want to do is possible.
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