Microsoft KB Archive/181947

= XCON: PRMD Value in Numeric-OR-Address Won't Downgrade to 84 =

Article ID: 181947

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q181947



SYMPTOMS
When you send a message to an X.400 custom recipient over a 1984 mode X.400 Connector, the following non-delivery report (NDR) may be generated:

  Your message did not reach some or all of the intended recipients.

Subject:  Test Sent:  1/1/80 1:00 AM

The following recipient(s) could not be reached:

User, Mail on 1/1/80 2:00 AM     The recipient could not be transferred because it could not be      downgraded MSEXCH:MSExchangeMTA:Sitename:SERVERNAME

Additionally, the following event will be generated in the Windows NT Application Log:

  Event ID 175    MSExchangeMTA    X400 Service An error occurred while transferring message C=US;A= ;P=PRMD;L=SERVERNAME-971223150130Z-132, because per-receipt information could not be downgraded. An X.400 API Association (XAPIA) unable-to- transfer reason code and unable-to-downgrade diagnostic code were returned. [MTA DISP:FANOUT 12 147] (14)



CAUSE
The custom recipient was created using a numeric-OR-address and also contains a private management domain (PRMD) value. This prevents the X.400 address from downgrading from the X.400 88 version to the 84 version. Consequently, the message is rejected, an NDR is produced, and the above error is logged.



WORKAROUND
To work around this problem, remove the PRMD value from the custom recipient mail address. This allows the message to be properly downgraded from X.400 1988 mode to 1984.



MORE INFORMATION
This problem occurs when you send, over a 1984 mode X.400 Connector, a message that is addressed to a recipient that contains both a numeric address, such as X.121 or User Agent numeric ID, and a PRMD value.

In accordance with X.419 Annex B section B 2.8, a numeric-OR-address containing a PRMD value cannot be downgraded from 1988 to 1984.

Additional query words: p2 p22 red book blue

Keywords: kbprb kbusage KB181947

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