DOCUMENT:Q200376  26-AUG-1999  [exchange]
TITLE   :XFOR: Authentication Package DPA Errors
PRODUCT :Microsoft Exchange
PROD/VER:winnt:5.0
OPER/SYS:
KEYWORDS:exc5

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The information in this article applies to:

 - Microsoft Exchange Server, version 5.0 
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SYMPTOMS
========

Event 11512 is logged in the application log 5 to 10 times each second on an
Exchange Server 5.0 computer located in the same site as an Exchange Server 5.5
computer.

   Event: 11512 Source: MSExchangePOP3 Category: Configuration Description: The
   authentication package DPA could not be found in the
   Available-Authorization-Packages attribute.

CAUSE
=====

This occurs if the Exchange Service Account administrator is not an
administrator of the Windows NT domain or computer.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0. This problem was corrected in the latest Microsoft Exchange Service
Pack. For information on obtaining the Service Pack, query on the following word
in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K

Additional query words:

======================================================================
Keywords          : exc5 
Technology        : kbExchangeSearch kbExchange500 kbZNotKeyword2
Version           : winnt:5.0
Issue type        : kbbug
Solution Type     : kbfix

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