Assume that you apply Update Rollup 1 for Microsoft Exchange Server 2010 Service Pack 2 in your environment. The Exchange server receives a message that contains invalid character sets on the Subject line. For example, the Subject line contains the GB2313 charset (charset value is 134) or the CHINESEBIG5 charset (charset value is 136). In this situation, the Microsoft Exchange Transport service (EdgeTransport.exe) crashes, and the message is not delivered. Additionally, the following events are logged in the Application log:
Note This issue may cause a delay in message delivery to users.
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 for process id: Process ID, with parameters: E12, Build Type, Version Number, edgetransport, M.Exchange.Transport, M.E.T.C.MExEvents.HandleAgentExchangeExceptions, System.InvalidOperationException, XXXX, Version Number.
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 for process id: Process ID, with parameters: E12, Build Type, Version Number, edgetransport, M.Exchange.Transport, M.E.T.C.MExEvents.HandleAgentExchangeExceptions, System.InvalidOperationException, XXXX, Version Number.
Log Name: Application
Source: MSExchangeExtensibility
Task Category: MExRuntime
Event ID: 1051
Level: Warning
Description:
Agent 'Outbound Trust Agent' caused an unhandled exception 'InvalidCharsetException: Character set name (Bad Charset Name Here) is invalid or not installed.' while handling event 'OnCategorizedMessage'
Source: MSExchangeExtensibility
Task Category: MExRuntime
Event ID: 1051
Level: Warning
Description:
Agent 'Outbound Trust Agent' caused an unhandled exception 'InvalidCharsetException: Character set name (Bad Charset Name Here) is invalid or not installed.' while handling event 'OnCategorizedMessage'
Log Name: Application
Source: MSExchangeTransport
Event ID: 10003
Task Category: PoisonMessage
Level: Error
Description:
The transport process failed during message processing with the following call stack:
System.InvalidOperationException: Unknown agent type
at Microsoft.Exchange.Transport.Categorizer.MExEvents.HandleAgentExchangeExceptions(MExSession MexSession, LocalizedException e)
at Microsoft.Exchange.Transport.Categorizer.MExEvents.EndEvent(MExSession mexSession, IAsyncResult ar)
at Microsoft.Exchange.Transport.Categorizer.CategorizerComponent.HandleMExResult(IAsyncResult result, TransportMailItem transportMailItem, TaskContext taskContext)
at Microsoft.Exchange.Transport.Categorizer.CategorizerComponent.Stage8OnCategorizedMessage(TransportMailItem transportMailItem, TaskContext taskContext)
at Microsoft.Exchange.Transport.Categorizer.TaskContext.Invoke()
at Microsoft.Exchange.Transport.Categorizer.Job.ExecutePendingTasks()
at Microsoft.Exchange.Transport.Categorizer.CatScheduler.JobThreadEntry(Object ignored)
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)
Source: MSExchangeTransport
Event ID: 10003
Task Category: PoisonMessage
Level: Error
Description:
The transport process failed during message processing with the following call stack:
System.InvalidOperationException: Unknown agent type
at Microsoft.Exchange.Transport.Categorizer.MExEvents.HandleAgentExchangeExceptions(MExSession MexSession, LocalizedException e)
at Microsoft.Exchange.Transport.Categorizer.MExEvents.EndEvent(MExSession mexSession, IAsyncResult ar)
at Microsoft.Exchange.Transport.Categorizer.CategorizerComponent.HandleMExResult(IAsyncResult result, TransportMailItem transportMailItem, TaskContext taskContext)
at Microsoft.Exchange.Transport.Categorizer.CategorizerComponent.Stage8OnCategorizedMessage(TransportMailItem transportMailItem, TaskContext taskContext)
at Microsoft.Exchange.Transport.Categorizer.TaskContext.Invoke()
at Microsoft.Exchange.Transport.Categorizer.Job.ExecutePendingTasks()
at Microsoft.Exchange.Transport.Categorizer.CatScheduler.JobThreadEntry(Object ignored)
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)
Note This issue may cause a delay in message delivery to users.