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Q215472: XFOR: How the X.400 Connector Handles High-Priority Mail

Article: Q215472
Product(s): Microsoft Exchange
Version(s): winnt:4.0,5.0,5.5
Operating System(s): 
Keyword(s): exc4 exc5 exc55
Last Modified: 19-DEC-1999

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
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SUMMARY
=======

This article explains how the Microsoft X.400 Connector handles high-priority
mail (including delivery and non-delivery reports).

MORE INFORMATION
================

The Microsoft X.400 Connector will open a new X.400 association with the partner
X.400 message transfer agent (MTA) when a high-priority message, delivery, or
non-delivery report is queued for the partner X.400 MTA. (Delivery and
non-delivery reports do not have priority indicators. Following X.411 spec, they
are treated as high priority.)

The new X.400 association will be used only for high-priority messages (including
delivery and non-delivery reports). Normal or low-priority messages will flow
across the existing association or a new association will be created.

Note that high-priority messages can cause the establishment of a second
association even when the number of queued messages has not reached the
threshold value configured on the Override tab of the Microsoft X.400 Connector
Property page.

Additional query words: x400 ndr itu

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Keywords          : exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2
Version           : winnt:4.0,5.0,5.5
Issue type        : kbinfo

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