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Q280527: XADM: Event 1016 Not Logged When Accessing Other User’s Mailbox

Article: Q280527
Product(s): Microsoft Exchange
Version(s): 4.0,5.0,5.5
Operating System(s): 
Keyword(s): exc4 exc5 exc55
Last Modified: 06-AUG-2002

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The information in this article applies to:

- Microsoft Exchange, versions 4.0, 5.0, 5.5 
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SUMMARY
=======

An event ID 1016 message is not logged in the Application event log when you
access another user's mailbox or schedule if a primary Windows NT account has
not been assigned to that user's mailbox.

MORE INFORMATION
================

When you try to access another user's mailbox or schedule, the following event
ID is logged in the Application event log:

  Event ID: 1016
  Source: MSExchangeIS Private
  Type: Success Audit
  Category: Logons
  Windows NT User <DOMAIN\username> logged on to UserA mailbox, and is not
  the primary Windows NT account on this mailbox.

This event is logged even if you have been granted permission to access the
mailbox, and even when you successfully access the mailbox. However, this event
is not logged if a primary Windows NT account is not assigned to the user's
mailbox. This behavior is by design.

Additional query words:

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Keywords          : exc4 exc5 exc55 
Technology        : kbZNotKeyword6 kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbExchangeClientSearch kbZNotKeyword2
Version           : :4.0,5.0,5.5
Issue type        : kbinfo

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