XCON: MTA Could Route Messages Through Higher Costing Routes (196665)


The information in this article applies to:

  • Microsoft Exchange Server 5.5
This article was previously published under Q196665

SYMPTOMS

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

CAUSE

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.

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 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

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.
Modification Type:MinorLast Reviewed:4/28/2005
Keywords:EXC55SP3Fix kbbug kbfix kbQFE KB196665
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