DOCUMENT:Q175588  12-MAR-1999  [exchange]
TITLE   :XFOR: Microsoft Exchange DX Returns Event ID 220 or 221
PRODUCT :Microsoft Exchange
PROD/VER:WINDOWS:4.0,5.0,5.5
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
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SYMPTOMS
========

When starting the Microsoft Exchange Directory Synchronization Service (DXA),
you may receive the following events in the Exchange Server Application Log:

   Event ID: 220
   Source: MSExchangeDX
   Description: Multiple dirsync messages to and from <Remote Dirsync
   Requestor Name> have been lost or delayed.

   Event ID: 221
   Source: MSExchangeDX
   Description: An Import Reply (full export) will be done to <Remote
   Dirsync Requestor Name> on the next reply.

CAUSE
=====

The above errors can occur when there are corrupted messages located on the DXA
queue in the Message Transfer Agent (MTA).

WORKAROUND
==========

To remove corrupted DXA messages from the Exchange MTA, follow the steps
outlined in the Microsoft Knowledge Base article, Q164506, "XFOR: How to Remove
a Corrupted DXA Message from Exchange MTA."

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Keywords          :  
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version           : WINDOWS:4.0,5.0,5.5
Issue type        : kbprb

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