DOCUMENT:Q270695  10-NOV-2000  [exchange]
TITLE   :XADM: MTA Logs Content Conversion Error 4096 for Inbound Message
PRODUCT :Microsoft Exchange
PROD/VER::5.5
OPER/SYS:
KEYWORDS:exc55 kbExchange550preSP4fix kbExchange550sp4Fix

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The information in this article applies to:

 - Microsoft Exchange Server, version 5.5 
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SYMPTOMS
========

When receiving a message from a foreign X.400 system, the Microsoft Exchange
Server message transfer agent (MTA) may log an event similar to the following:

   Source : MSExchangeMTA
   Type : Warning
   Category : X.400 Service
   Event ID: 210
   Description:
   An internal MTA error occurred. Content conversion for message
   C=C;A=admd;P=prmd;L=ID failed. Conversion error: 4096, Object at fault:
   0600006C, Original content type: 56010A01, New content type:
   2A864886F7140501. PDU dump reference 23224 [MTA DISP:RESULT 22 112] (14)

After this event, you also see Event ID 290, which indicates that a non-delivery
report (NDR) was sent for the message.

CAUSE
=====

The inbound message contained an attachment of zero length. The Exchange MTA was
unable to decode this attachment correctly, resulting in the conversion
failure.


RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server 5.5.
For additional information, please see the following article in the Microsoft
Knowledge Base:

   Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack



STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem was first corrected in Exchange Server 5.5 Service
Pack 4.

Additional query words:

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Keywords          : exc55 kbExchange550preSP4fix kbExchange550sp4Fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : :5.5
Issue type        : kbbug
Solution Type     : kbfix

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