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Q176127: XCON: Read Receipts Looping in the Message Transfer Agent

Article: Q176127
Product(s): Microsoft Exchange
Version(s): WINDOWS:5.0
Operating System(s): 
Keyword(s): 
Last Modified: 14-MAR-1999

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The information in this article applies to:

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

When a message is sent to an Enterprise Solutions Limited recipient with a read
receipt request, the read receipt is received by the originating message
transfer agent (MTA), but is seen looping within the MTA when it is routed to
the user. Event logs indicate the following loop detection event:

  Source: MSExchangeMTA
  Event: 201
  Description: A loop has been detected in the message being transferred
  in. A non-delivery report was generated with reason code unable-to-
  transfer and diagnostic code loop-detected. [MTA XFER-IN 17 104] (14)

A non-delivery report (NDR) event in the form of Event ID 290 is also generated
in the event logs.


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.0. 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


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Keywords          :  
Technology        : kbExchangeSearch kbExchange500 kbZNotKeyword2
Version           : WINDOWS:5.0
Issue type        : kbbug
Solution Type     : kbfix

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