Microsoft KB Archive/177993

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The information in this article applies to:


 * Microsoft Exchange Server, versions 4.0, 5.0, 5.5

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SYMPTOMS
When a message is sent to an automated mailbox on a foreign X.400 messaging system from a Microsoft Exchange client user, the reply from the automated mailbox is not delivered to the message originator.

The following error messages may be seen in the Windows NT Application log:

  Event ID:296 Source:MSExchangeMTA Type:Information Category:X.400 Service Description: The message C=us;A=admd;P=;L=97082616584041+20201E53 (object ID:  06000058) has been successfully converted from content type 56010A00 to   content type 2A864886F7140501. [MTA DISP:FANOUT 11 112] (10)

Event ID:2025 Source:MSExchangeIS Private Type:Information Category:Transport Delivering Description: The delivery of a message failed due to error 00000BB8. A non-delivery report is being sent to the message's originator.

Event ID:290 Source:MSExchangeMTA Type:Warning Category:X.400 Service Description: A non-delivery report (reason code transfer-failure and diagnostic code  invalid-arguments) is being generated for message C=us;A=admd;P=;L=97082616584041+20201E53. It was originally destined for DN:/o=xxx/ou=xxxxxx/cn=RECIPIENTS/cn=xxxx[ASCII 167]C=US;A=ADMD;P=PRMD;O=ORG;S=lastname;G=firstname;I=initial; (recipient number 1), and was to be redirected to. [MTA DISP:RESULT 21 136] (12)

CAUSE
This problem can occur if the foreign X.400 messaging system sends a message with an MTS-ID that has a zero-length value PRMD. This is the case with the above example: C=us;A=admd;P=;L=97082616584041+20201E53

There is a private management domain (PRMD) value, but it is zero-bytes. The Microsoft Exchange MTA finds this to be invalid per X.411 of the CCITT messaging specifications. The recommendation calls for a PRMD length between 1 and 16 characters.

WORKAROUND
Contact the X.400 provider or the administrator of the X.400 messaging system to find out whether there is a patch available for their messaging platform.

STATUS
The Microsoft Exchange Server Message Transfer Agent (MTA) is a fully compliant 1984 and 1988 X.400 messaging platform. However, we are researching this problem to possibly enable a workaround in our own MTA. We will post more information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: mta content 84 red blue book

Keywords : kbusage XFOR

Version : WINDOWS:4.0,5.0,5.5

Platform : winnt

Issue type : kbbug
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