Microsoft KB Archive/136786

= XCON: IMC Sends NDR and OOF Messages to Bulk Mailing Lists =

Article ID: 136786

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition

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This article was previously published under Q136786



SUMMARY
The Microsoft Exchange Internet Mail Connector (IMC) sends Non Delivery Reports (NDR) and Out of Office (OOF) messages to bulk mailing lists.



MORE INFORMATION
Messages that come into the IMC from a bulk mail distribution service, such as a listserver, have a SMTP header of Precedence with a value of junk or bulk. The IMC ignores this header and sends NDR and OOF reply messages to the bulk mailing list.



STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 4.0. This problem was corrected in Microsoft Exchange Server 4.0 U.S. Service Pack 2. 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: 4.00

Keywords: KB136786

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