Microsoft KB Archive/176181

= XCON: NDRs Dropped on Message to Recipient w/ Multiple DDAs =

Article ID: 176181

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 Q176181



SYMPTOMS
When you submit a message to a recipient address that contains multiple DDA pairs, any non-delivery report (NDR) that may occur for the message will be discarded by the Store. An example of an address which meets this criteria is as follows:

  C= ;A= ;P= ;O= ; DDA:RFC822=User@domain.com;DDA:MSXCX500=C= ;A= ; P= ;O= ;OU= ;CN=User



CAUSE
As in the above example, the DDA pairs are defined in the following order:

  DDA1 type, DDA1 value, DDA2 type, DDA2 value

However, when parsing the address, the order was assumed as DDA1 type, DDA2 type, DDA1 value, DDA2 value. As such, a failure occurs upon parsing of the address when more than 1 DDA is present.



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: kbhotfixserver kbqfe kbbug kbfix KB176181

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