Microsoft KB Archive/176127

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

Article ID: 176127

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.0 Standard Edition

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This article was previously published under Q176127





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

Keywords: kbqfe kbhotfixserver kbbug kbfix KB176127

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