The EdgeTransport.exe file of Exchange 2007 servers crashes continuously and Event ID 10003 and Event ID 5000 occur

In a Microsoft Exchange 2003 and Exchange 2007 coexisting environment, the EdgeTransport.exe file in Exchange 2007 servers crashes continuously. When this problem occurs, the following errors are recorded on the Application event logs:

Event Type: Error
Event Source: MSExchangeTransport
Event Category: PoisonMessage
Event ID: 10003
Description:
The transport process failed during message processing with the following call stack: System.InvalidOperationException: The value '[<IP Address>]' is already present in the collection.
at Microsoft.Exchange.Data.MultiValuedProperty`1..ctor(Boolean readOnly, Boolean validate, ProviderPropertyDefinition propertyDefinition, ICollection values, ICollection invalidValues)
at Microsoft.Exchange.Data.MultiValuedProperty`1..ctor(Boolean readOnly, ProviderPropertyDefinition propertyDefinition, ICollection values)
at Microsoft.Exchange.Data.Directory.SystemConfiguration.SmtpSendConnectorConfig.SmartHostsGetter(IPropertyBag propertyBag)
at Microsoft.Exchange.Data.Directory.PropertyBag.get_Item(PropertyDefinition key)
at Microsoft.Exchange.Data.Directory.ADObject.ValidateCalculatedProperty(ADPropertyDefinition propertyDefinition, PropertyBag propertyBag, List`1 errors, Boolean useOnlyReadConstraints)
at Microsoft.Exchange.Data.Directory.ADObject.ValidateRead(List`1 errors)
at Microsoft.Exchange.Data.Directory.ADRawEntry.ValidateRead()
at Microsoft.Exchange.Data.Directory.ADSession.ObjectsFromEntries(SearchResultEntryCollection entries, String originatingServerName, IEnumerable`1 properties, ADRawEntry dummyInstance, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor)
at Microsoft.Exchange.Data.Directory.ADPagedReader`1.GetNextPage()
at Microsoft.Exchange.Data.Directory.ADPagedReader`1.<GetEnumerator>d__0.MoveNext()
at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.<>c__DisplayClassd`1.<ReadConfigurationPaged>b__a()
at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.RunADOperation(ADOperation adOperation, Int32 retryCount)
at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.ReadConfigurationPaged[T](ADConfigurationReader`1 configurationReader, ADConfigurationProcessor`1 configurationProcessor, Int32 retryCount)
at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.ReadConfigurationPaged[T](ADConfigurationReader`1 configurationReader, ADConfigurationProcessor`1 configurationProcessor)
at Microsoft.Exchange.Transport.Categorizer.RawRoutingConfigData.LoadAll[T](ADSystemConfigurationSession session, ADObjectId rootId, String name)
at Microsoft.Exchange.Transport.Categorizer.RawRoutingConfigData..ctor(ADSystemConfigurationSession session, ExEventLog eventLogger, DateTime whenCreated)
at Microsoft.Exchange.Transport.Categorizer.RoutingTables..ctor(ExEventLog eventLogger)
at Microsoft.Exchange.Transport.Categorizer.BridgeheadRouting.LoadRoutingTables()
at Microsoft.Exchange.Transport.Categorizer.BridgeheadRouting.TryLoadRoutingTables(Exception& exception)
at Microsoft.Exchange.Transport.Categorizer.BridgeheadRouting.ReloadRoutingTables(Object state)
at System.Threading._TimerCallback.TimerCallback_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading._TimerCallback.PerformTimerCallback(Object state)

Event Type: Error
Event Source: MSExchange Common
Event Category: General
Event ID: 4999
Description:
Watson report about to be sent to dw20.exe for process id: <ID>, with parameters: E12, RTL-x86, <version>, edgetransport, unknown, M.E.D.MultiValuedProperty`1.ctor, System.InvalidOperationException, 7e37, unknown. ErrorReportingEnabled: True

Event Type: Error
Event Source: Microsoft Exchange Server
Event Category: None
Event ID: 5000
Description:
EventType e12, P1 rtl-x86, P2 <version>, P3 edgetransport, P4 unknown, P5 m.e.d.multivaluedproperty`1.ctor, P6 system.invalidoperationexception, P7 7e37, P8 unknown, P9 NIL, P10 NIL.

This problem occurs if an Exchange Server 2003 administrator puts duplicate smarthost IP addresses on the properties of a Simple Mail Transfer Protocol (SMTP) connector. Therefore, all mail flow of Exchange 2007 servers is broken until the duplicate IP address is removed.

To resolve this problem, install Update Rollup 8 for Exchange 2007 Service Pack 1.

For more information about Update Rollup 8 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:After you apply the fix, Exchange 2007 does not add duplicate IP addresses to the list for routing calculation.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.