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Q260167: XCON: MTA Stops Communicating with Other MTAs in the Same Site

Article: Q260167
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): exc55 kbExchange550preSP4fix kbExchange550sp4Fix
Last Modified: 10-NOV-2000

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
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SYMPTOMS
========

The Exchange Server message transfer agent (MTA) may stop communicating with
other MTAs on servers in the same site.

CAUSE
=====

This issue can occur if the MTA experiences a large number of connection
failures over an extended period of time and loses connection resources that are
necessary to connect to other MTAs in the site.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server 5.5.
For additional information, please see the following article in the Microsoft
Knowledge Base:

  Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack



WORKAROUND
==========

To work around this issue, restart the MTA to reset any connection resources and
enable the MTA to communicate with other MTAs in the same site.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange version 5.5.
This problem was first corrected in Exchange Server 5.5 Service Pack 4.

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

This issue does not cause any loss of communication between servers in different
sites by using any connector (Site, X.400, SMTP, and so on).


Additional query words:

======================================================================
Keywords          : exc55 kbExchange550preSP4fix kbExchange550sp4Fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbbug
Solution Type     : kbfix

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