XFOR: Email Systems That Use Addresses with DDATYPE= MSXCX500 will Receive NDRs from Exchange

ID: Q175579

The information in this article applies to:

Microsoft Exchange Server, version 5.0

SYMPTOMS

Microsoft Exchange Server, version 5.0 will return non-delivery reports (NDRs) to foreign mail systems that send messages to it with DDA TYPE/VALUE fields that have a DDATYPE of MSXCX500.

MORE INFORMATION

Microsoft Exchange Server, version 4.0, will accept and deliver these messages.

CAUSE

This is caused by the way that Microsoft Exchange Server, version 5.0, interoperates with systems that use proper x.500 Distinguished Names (DNs) instead of the Microsoft Exchange DN format.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server, version 5.0.

A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.

Keywords : kb3rdparty kbbug5.00 kbfix5.00.sp2 XFOR
Version : WinNT:5.0
Platform : winnt
Issue type : kbbug