Accessing other useres mailboxes

[Amilyag]

In Exchange 5.5 and under Logons, I am showing different
users name logoning on to the mailboxes that they are not
the owner of. I do not think that those useres are
accessing those mailboxes. They are not using delegates or
calendars. Could they be other explainations as to why
these names show up as accessing the mailbox. Your help
will be greatly appreciaited.

 

[wallst32]

I've seen this happen when a user's Outlook Address Book references a mailbox they don't have access to. They never really get into the mailbox, but Exchange will show them as the last person who logged on.