Exchange 2007 CAS Watson error precedes SMTP unresponsive by about 5 hours

Posted on 2009-12-18
Last Modified: 2012-06-21
This is on a Windows 2008 server running Exchange 2007 HTS and CAS.  This problem happens about twice a week where we get the following 2 errors, then about 5-6 hours later SMTP becomes unresponsive and we need to manually restart the Microsoft Transport Service.

Event Type:      Error
Event Source:      MSExchangeTransport
Event Category:      (10)
Event ID:      10003
Date:            12/17/2009
Time:            6:54:06 PM
User:            N/A
The transport process failed during message processing with the following call stack: System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.Exchange.Protocols.Smtp.SmtpInServer.HandleConnection(Socket connection)
   at Microsoft.Exchange.Protocols.Smtp.SmtpInComponent.HandleConnection(Socket connection)
   at Microsoft.Exchange.Transport.Main.Program.HandleConnection(Socket clientConnection)
   at Microsoft.Exchange.ProcessManager.ControlObject.CommandReceived(Int32 size)
   at Microsoft.Exchange.ProcessManager.ControlObject.ReadMessageCompleteInternal(IAsyncResult asyncResult)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)


Event Type:      Error
Event Source:      MSExchange Common
Event Category:      (1)
Event ID:      4999
Date:            12/17/2009
Time:            6:54:06 PM
User:            N/A
Watson report about to be sent to dw20.exe for process id: 3672, with parameters: E12, c-RTL-AMD64, 08.02.0213.000, edgetransport, M.E.Transport, M.E.P.S.SmtpInServer.HandleConnection, System.NullReferenceException, 69f8, 08.02.0213.000.  ErrorReportingEnabled: False
Question by:GeminiISG
    LVL 65

    Expert Comment

    What else is on the box? Dr Watson errors on Exchange are very unusual. I haven't seen one with Exchange 2007 before. Given it is pointing to transport, I would be suspecting AV, Antivirus, Disclaimer tools etc.


    Author Comment

    There is a listserver software (from Ikakura) called Active Subscriber, but I disabled it for a week and I still got the errors/stoppage.
    LVL 65

    Accepted Solution

    If it interacts with Exchange in any shape or form then disabling it is not enough, because its hooks will still be in the system. You need to remove the product.
    The problem may not be with the actual product doing what it does, but the way that it has hooked in to Exchange which has caused instability.


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