Exchange 2003, Outlook 2003, Trying to set up an exchange mailbox that can be viewed (Continually not with Open Folder option) by several users with their own mailbox.

We have Exchange 2003 and Outlook 2003.  I have several users (A, B, & C) that need to have access to a shared user mailbox (D).  I have opened user account (D) in Outlook and added A,B,&C to the delegates.  I've given them the appropriate permissions.  In each of the users (A, B, & C) accounts, I have gone to Tools\Email Accounts\View or Change\Change Microsoft Exchange Server\More Settings\Advanced Tab\Add User D.

For all three users the account appears in their folder list in Outlook, but it is unable to expand.  Can anyone help me to figure out what step I am missing.
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SembeeConnect With a Mentor Commented:
You have gone about it the wrong way.
Remove all the permissions that you have set.

Go to the Properties of the Ad account that has this mailbox. Then choose Exchange Advanced, followed by Mailbox rights.
Add each user to the list, then grant them Full Mailbox Access ONLY. Don't change anything else.
If you need these users to be able to send as the user, then add the right to send as as well, but no others.

Then can then open the full mailbox.

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