Microsoft KB Archive/320225

= XCON: MTA Process Can Leak Memory Because of Excessive Rerouting =

Article ID: 320225

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange 2000 Enterprise Server

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This article was previously published under Q320225



SYMPTOMS
The private bytes usage for the message transfer agent (MTA) process can reach up to 2 gigabytes (GB) in an environment where minor revision changes are made to the link state tables. This problem usually occurs on bridgehead servers. Usually, the minor version changes occur when there is any of the following situations (this is not a complete list):
 * A change in the connector settings
 * Misconfigured connectors (for example, an incorrect password)
 * Frequent addition and deletion of connectors
 * Unreliable network

After this condition occurs, the MTA generates the following events for any message that enter the MTA.

Event Type: Warning

Event Source: MSExchangeMTA

Event Category: X.400 Service

Event ID: 142

Date: 2/8/2002

Time: 3:08:36 PM

User: N/A

Computer: ServerName

Description:

The MTA was unable to route to recipient C=US;A= ;P=Company;O=Site;DDA:SMTP=user(a)Company.net;. The message (MTS-ID): C=US;A= ;P=Company;L=OrginateServer-020208210308Z-521102, recipient: C=US;A= ;P=Company;O=Site;DDA:SMTP=user(a)Company.net;, recipient number 1. Check the routing table for a possible incorrect routing configuration. (MTA DISP:ROUTER 16 119) (12)

Event Type: Warning

Event Source: MSExchangeMTA

Event Category: X.400 Service

Event ID: 290

Date: 2/8/2002

Time: 3:08:36 PM

User: N/A

Computer: ServerName

Description:

A non-delivery report (reason code unable-to-transfer and diagnostic code unrecognised-OR-name) is being generated for message C=US;A= ;P=Company;L=OrginateServer-020208210308Z-521102. It was originally destined for C=US;A= ;P=Company;O=Site;DDA:SMTP=user(a)Company.net; (recipient number 1), and was to be redirected to. (MTA DISP:RESULT 36 136 (12)

Event Type: Warning

Event Source: MSExchangeMTA

Event Category: X.400 Service

Event ID: 141

Date: 2/8/2002

Time: 3:08:37 PM

User: N/A

Computer: ServerName

Description:

The MTA is unable to route a report for message C=US;A= ;P=Company;L=OrginateServer-020208210308Z-521102 to recipient DN:CN=Alias,CN=Name,OU=Site,O=Company -- C=US;A= ;P=Company;O=Site;S=SurName;G=GivenName;. MTA object at fault: 060009B3. Check the routing table for a possible incorrect routing configuration. (MTA DISP:ROUTER 16 40) (12)



RESOLUTION
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack

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

Component: MTA

NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 2.



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 3.

Additional query words: memory leak mta reset routes

Keywords: kbhotfixserver kbqfe kbbug kbexchange2000presp3fix kbexchange2000sp3fix kbfix KB320225

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