Exch2007: Posion messages are public folder traffic?

Exch2007: Posion messages are public folder traffic?
This morning some of our transport servers restarted themselves and put a 
couple messages into the Poison Message queue.

Looking at the message, they are both from address: 
PublicFolders@MyDomain.com with receipient of PublicFolder2@MyDomain.com

The message sizes are 300-400 KB.  I have exported the emails to EML files, 
but I am not sure if/what to look for?

How can I diagnose why (what I assume) is public folder replication causing 
transport queue to fail on them as poision messages?




Event Logs Show this excitement:

The transport process failed during message processing with the following 
call stack: System.InvalidOperationException: Participant on a RecipientBase 
can be updated only to the one with the same address
   at 
Microsoft.Exchange.Data.Storage.RecipientBase.CheckCanUpdateParticipant(Participant newParticipant)
   at 
Microsoft.Exchange.Data.Storage.RecipientBase.InternalUpdateParticipant(Participant newParticipant)
   at 
Microsoft.Exchange.Data.Storage.RecipientBaseCollection`1.LoadAdditionalParticipantProperties(PropertyDefinition[] keyProperties)
   at 
Microsoft.Exchange.Data.Storage.RecipientBaseCollection`1.LookupMandatoryPropertiesIfNeeded()
   at Microsoft.Exchange.Data.Storage.RecipientBaseCollection`1.Save()
   at Microsoft.Exchange.Data.Storage.MessageItem.OnBeforeSave()
   at Microsoft.Exchange.Data.Storage.Item.SaveInternal(SaveMode saveMode, 
Boolean commit)
   at 
Microsoft.Exchange.Data.Storage.InboundTnefConverter.ParseAttachDataObject(TnefPropertyReader propertyReader)
   at 
Microsoft.Exchange.Data.Storage.InboundTnefConverter.ParseTnefProperty(TnefPropertyReader propertyReader, Boolean forceTransmittable)
   at 
Microsoft.Exchange.Data.Storage.InboundTnefConverter.ParseAttachmentProperties()
   at Microsoft.Exchange.Data.Storage.InboundTnefConverter.ReadAttribute()
   at 
Microsoft.Exchange.Data.Storage.InboundTnefConverter.ConvertToItem(TnefReader 
reader, InboundMessageWriter targetWriter, InboundConversionOptions options, 
ConversionLimitsTracker limitsTracker, String correlationKey, Boolean 
isSummaryTnef)
   at 
Microsoft.Exchange.Data.Storage.InboundTnefConverter.ConvertToItem(Stream 
tnefStream, InboundMessageWriter targetWriter, InboundConversionOptions 
options, ConversionLimitsTracker limitsTracker, String correlationKey, 
Boolean isSummaryTnef)
   at 
Microsoft.Exchange.Data.Storage.InboundMimeConverter.<>c__DisplayClass16.<PromoteTnef>b__10()
   at Microsoft.Exchange.Data.Storage.ConvertUtils.CallCts(Trace tracer, 
String methodName, String exceptionString, CtsCall ctsCall)
   at 
Microsoft.Exchange.Data.Storage.InboundMimeConverter.PromoteTnef(InboundTnefConverter tnefconverter, MimePart tnefPart, Boolean isSummaryTnef)
   at 
Microsoft.Exchange.Data.Storage.InboundMimeConverter.ConvertToItemInternal(MimePromotionFlags promotionFlags)
   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.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)
date: Tue, 18 Mar 2008 08:51:02 -0700 author: Paul