Microsoft KB Archive/252006

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XFOR: Messages Bound for Exchange Generate Non-Delivery Report if DBCS Characters Are Used in Notes Foreign Domain Document

Article ID: 252006

Article Last Modified on 2/21/2007


  • Microsoft Exchange 2000 Server Standard Edition

This article was previously published under Q252006


If the Exchange domain name in the Lotus Notes proxy address for Lotus Notes includes double-byte character set (DBCS) characters, messages sent to an Exchange recipient generate a non-delivery report (NDR) that indicates that the recipient could not be found.

If the Exchange recipient's domain is manually changed to the DBCS character, the message gets delivered to the Exchange recipient, but the Exchange server sends an NDR message back to the Notes sender, indicating that the message is looping.


The messages generate NDRs because the Exchange server changes the DBCS character to a format similar to the following:


This makes the address invalid so that Notes does not recognize the foreign domain.


Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.


It is an unsupported configuration to use DBCS characters for any addressing with the Microsoft Exchange Lotus Notes Connector.

Keywords: kbbug kbpending KB252006