XFOR: Email Systems That Use Addresses with DDATYPE= MSXCX500 will Receive NDRs from ExchangeID: Q175579
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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.
Microsoft Exchange Server, version 4.0, will accept and deliver these messages.
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.
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
Last Reviewed: March 10, 1999