XFOR: Microsoft Mail Connector NDRs Messsage Due to Malformed X.400 Address in From: Field (176425)

The information in this article applies to:

Microsoft Exchange Server 5.0

This article was previously published under Q176425

SYMPTOMS

The Microsoft Exchange Microsoft Mail Connector generates a Non-Delivery Report (NDR) for messages that have X.400 addresses that use the '/' as the delimiter and use the '$' as the escape sequence before a '/' character.

CAUSE

The Microsoft Mail Connector does not recognize the '$' as a valid escape sequence in X.400 addresses. This causes the Microsoft Mail Connector to parse the address incorrectly, thereby incorrectly detecting a malformed X.400 address.

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

MORE INFORMATION

The Microsoft Mail Connector incorrectly parses X.400 addressing that use the '$' as the escape sequence to denote that the next character should be treated as a plain character. For example, an address that look like this:

   /C=us/a=MCI/p=microsoft/o=PSS/dda.type=ms/dda.value=net$/po$/mailbox

is incorrectly parsed. The '/' in the dda.value are treated as delimiters and values after the '/' are not correct X.400 field tags.

Modification Type:	Minor	Last Reviewed:	4/28/2005
Keywords:	kbbug kbfix kbQFE KB176425