XCON: MTA Queue Blocked by NDR or Delivery Receipts
Article ID: 151785
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 4.0 Standard Edition
- Microsoft Exchange Server 5.0 Standard Edition
This article was previously published under Q151785
SYMPTOMS
An Exchange Server site that backbones over a foreign X.400 system to
another Exchange Server site develops a message backlog for mail destined
for the remote Exchange Server site. This message backlog is unrelated to
any network communication problems. The message delivery problem may be
unidirectional; that is, messages are being delivered from the remote site,
but not to the remote site.
CAUSE
If a report message (that is, a non-delivery report [NDR], or a delivery
receipt) is returned from the remote site and the foreign X.400 system used
as a backbone adds unanticipated encoding for the property Report-
Additional-Info, the message may block the MTA queue.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 4.0. This problem has been corrected in the latest U.S. Service
Pack for Microsoft Exchange Server version 4.0. For information on
obtaining the Service Pack, query on the following word in the Microsoft
Knowledge Base (without the spaces):
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):
Additional query words: blocked blockage hung stopped queues
Keywords: kbbug kbfix kbusage KB151785