Article: Q160284
Product(s): Microsoft Exchange
Version(s): winnt:4.0
Operating System(s):
Keyword(s): kbusage
Last Modified: 11-APR-1999
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The information in this article applies to:
- Microsoft Exchange Server, version 4.0
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SUMMARY
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Messages that are sent from one Microsoft Exchange Internet Mail Connector (IMC)
to another IMC with addresses that have more than 246 characters (before and
after the '@') might fail with Non-Delivery Report (NDR) from the Microsoft
Exchange System Attendant as "Unknown Host" rather than traveling through and
returning with a "User Unknown" error.
STATUS
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Microsoft has confirmed this to be a problem in version 4.0 of Microsoft
Exchange. We are researching this problem and will post new information here in
the Microsoft Knowledge Base as it becomes available.
Additional query words:
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Keywords : kbusage
Technology : kbExchangeSearch kbExchange400 kbZNotKeyword2
Version : winnt:4.0
Issue type : kbbug
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