Dear Friend, I have a problem on open additional Mailbox. "A" client have grant the right to access "B" client mailbox. So "A" client use Outlook 97 to select open the additional mailbox. Then the problem come that the content(inbox) in client "A" who is client "B" is not the same as client "b" 's mailbox. That mean some mail are missing.But if client "B" 's mailbox is no missing when open with his account. Can some one answer me? Kenneth From Hong Kong My email is hkh60456@xxxxxxxxxxx