XCON: MTA Could Route Messages Through Higher Costing Routes

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This article was previously published under Q196665

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SYMPTOMS

The Microsoft Exchange Server message transfer agent (MTA) can send a message through higher costing route when multiple connectors are available.

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The MTA uses the final route in a list if retry timers are equal when choosing routes across multiple gateways. In the customer-specific case, the higher costing gateway happened to be lower in the list of currently active in the "connect retry state" than the least costing one.

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RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 (http://support.microsoft.com/kb/191014/EN-US/ ) XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:

Component: Message Transfer Agent (MTA)

   File Name      Version
   -------------------------
   Dbserver.sch   5.5.2500.0
   Dcprods.cat    5.5.2500.0
   Ems_rid.dll    5.5.2500.0
   Emsmta.exe     5.5.2500.0
   Info4log.cfg   5.5.2500.0
   Infodlog.cfg   5.5.2500.0
   Infollog.cfg   5.5.2500.0
   Infotlog.cfg   5.5.2500.0
   Mtacheck.exe   5.5.2500.0
   Mtamsg.dll     5.5.2500.0
   P2.xv2         5.5.2500.0
   X400om.dll     5.5.2500.0
   X400omv1.dll   5.5.2500.0

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STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

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APPLIES TO

Microsoft Exchange Server 5.5 Standard Edition

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kbbug kbfix kbqfe KB196665

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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