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The EdgeTransport.exe process crashes when processing certain email messages on an Exchange Server 2007 Hub Transport server

SYMPTOMS
Assume that you send or receive an email message that has a multipart/mixed content type and inline content disposition in a Microsoft Exchange Server 2007 environment. For example, you use an Apple device to send an email message that contains a body that resembles the following:
<text>
<image>
<text>
In this situation, the EdgeTransport.exe process on the Hub Transport server crashes. Additionally, the following events are logged in the Application log:
Log Name: Application
Source: MSExchange Common
Date: <Date>
Event ID: 4999
Task Category: General
Level: Error
Keywords: Classic
User: N/A
Computer: <Computer>
Description:
Watson report about to be sent to dw20.exe for process id: <ProcessID>, with parameters: E12, c-RTL-AMD64, <version number>, edgetransport, M.E.D.Storage, M.E.D.S.InboundMimeConverter.DetermineMixedContentEncoding, System.NullReferenceException, <XXXX>, <version number>. ErrorReportingEnabled: False

Log Name: Application
Source: MSExchangeTransport
Date: <Date>
Event ID: 10003
Task Category: PoisonMessage
Level: Error
Keywords: Classic
User: N/A
Computer: <Computer>
Description:
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.Data.Storage.InboundMimeConverter.DetermineMixedContentEncoding()
at Microsoft.Exchange.Data.Storage.InboundMimeConverter.PromoteMimeMessageMixedBody()
at Microsoft.Exchange.Data.Storage.InboundMimeConverter.PromoteDelayedBody(Item item, Boolean promoteEmptyBody)
at Microsoft.Exchange.Data.Storage.InboundMimeConverter.ConvertToItemInternal(MimePromotionFlags promotionFlags)
at Microsoft.Exchange.Data.Storage.InboundMimeConverter.<>c__DisplayClasse.<ConvertToItem>b__c()
at Microsoft.Exchange.Data.Storage.ConvertUtils.CallCts(Trace tracer, String methodName, String exceptionString, CtsCall ctsCall)
at Microsoft.Exchange.Data.Storage.InboundMimeConverter.ConvertToItem(MimePromotionFlags promotionFlags)
at Microsoft.Exchange.Data.Storage.ItemConversion.InternalConvertAnyMimeToItem(Item itemOut, EmailMessage messageIn, InboundConversionOptions options, MimePromotionFlags promotionFlags, Boolean isStreamToStream)
at Microsoft.Exchange.Data.Storage.ItemConversion.ConvertAnyMimeToItem(Item itemOut, EmailMessage messageIn, InboundConversionOptions options, MimePromotionFlags flags)
at Microsoft.Exchange.Data.Storage.ItemConversion.ConvertAnyMimeToItem(Item itemOut, EmailMessage messageIn, InboundConversionOptions options)
at Microsoft.Exchange.MailboxTransport.StoreDriver.DeliveryItem.ConvertFromAnyMime(EmailMessage message, InboundConversionOptions options)
at Microsoft.Exchange.MailboxTransport.StoreDriver.MailItemDeliver.CopyContentToItem(MailRecipient recipient)
at Microsoft.Exchange.MailboxTransport.StoreDriver.MailItemDeliver.<>c__DisplayClass1.<DeliverToRecipient>b__0()
at Microsoft.Exchange.MailboxTransport.StoreDriver.StorageExceptionHandler.RunUnderExceptionHandler(IMessageConverter converter, StoreDriverDelegate workerFunction)
at Microsoft.Exchange.MailboxTransport.StoreDriver.MailItemDeliver.DeliverToRecipient(MailRecipient recipient)
at Microsoft.Exchange.MailboxTransport.StoreDriver.MailItemDeliver.DeliverToRecipients()
at Microsoft.Exchange.MailboxTransport.StoreDriver.StoreDriver.DeliverMailItem(NextHopConnection connection, TransportMailItem mailItem)
at Microsoft.Exchange.MailboxTransport.StoreDriver.StoreDriver.LocalDeliveryCallback(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)


CAUSE
This issue occurs because an InvalidCastException exception occurs when the Hub Transport server processes email messages. This behavior causes the Edge Transport.exe process to crash.
RESOLUTION
To resolve this issue, install the following update rollup:
2602324 Description of Update Rollup 5 for Exchange Server 2007 Service Pack 3
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
For more information about the multipart content type, visit the following Microsoft website:For more information about inline content, visit the following Microsoft website:
Properties

Article ID: 2556751 - Last Review: 09/26/2011 10:40:00 - Revision: 5.0

  • Microsoft Exchange Server 2007 Service Pack 3
  • kbfix kbqfe kbsurveynew kbexpertiseinter KB2556751
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