Not able to Load MimeConent of certain Emails using EWS API

Question

When i Try to get the Mime Content of an email attachment using below code

msgAttachment.Load(new PropertySet(ItemSchema.MimeContent)); MimeContent mc = msgAttachment.Item.MimeContent;

I am getting the following exception on second line

Microsoft.Exchange.WebServices.Data.ServiceRequestException occurred HResult=-2146233088 Message=The request failed. Unable to read data from the transport connection: The connection was closed. Source=Microsoft.Exchange.WebServices StackTrace: at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.ReadResponse(HttpWebResponse response) at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.InternalExecute() at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest1.Execute() at Microsoft.Exchange.WebServices.Data.ExchangeService.InternalGetAttachments(IEnumerable1 attachments, Nullable1 bodyType, IEnumerable1 additionalProperties, ServiceErrorHandling errorHandling) at Microsoft.Exchange.WebServices.Data.ExchangeService.GetAttachment(Attachment attachment, Nullable1 bodyType, IEnumerable1 additionalProperties) at Microsoft.Exchange.WebServices.Data.Attachment.InternalLoad(Nullable1 bodyType, IEnumerable1 additionalProperties) at Microsoft.Exchange.WebServices.Data.ItemAttachment.Load(IEnumerable1 additionalProperties) at Presensoft.JournalEmailVerification.EmailVerification.DownloadFailedAttachments(EmailMessage msg, JournalEmail journalEmail) in D:\Source\ProductionReleases\Release_8.0.7.0\Email Archiving\Presensoft.JournalEmailVerification\EmailVerification.cs:line 621 InnerException: System.IO.IOException HResult=-2146232800 Message=Unable to read data from the transport connection: The connection was closed. Source=System StackTrace: at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.IO.Compression.DeflateStream.Read(Byte[] array, Int32 offset, Int32 count) at System.IO.Compression.GZipStream.Read(Byte[] array, Int32 offset, Int32 count) at System.Xml.XmlTextReaderImpl.ReadData() at System.Xml.XmlTextReaderImpl.ParseText(Int32& startPos, Int32& endPos, Int32& outOrChars) at System.Xml.XmlTextReaderImpl.ParseText() at System.Xml.XmlTextReaderImpl.ParseElementContent() at System.Xml.XmlCharCheckingReader.Read() at Microsoft.Exchange.WebServices.Data.EwsXmlReader.Read() at Microsoft.Exchange.WebServices.Data.ComplexProperty.InternalLoadFromXml(EwsServiceXmlReader reader, XmlNamespace xmlNamespace, String xmlElementName, Func2 readAction) at Microsoft.Exchange.WebServices.Data.ComplexProperty.LoadFromXml(EwsServiceXmlReader reader, XmlNamespace xmlNamespace, String xmlElementName) at Microsoft.Exchange.WebServices.Data.ComplexProperty.LoadFromXml(EwsServiceXmlReader reader, String xmlElementName) at Microsoft.Exchange.WebServices.Data.ComplexPropertyDefinitionBase.InternalLoadFromXml(EwsServiceXmlReader reader, PropertyBag propertyBag) at Microsoft.Exchange.WebServices.Data.ComplexPropertyDefinitionBase.LoadPropertyValueFromXml(EwsServiceXmlReader reader, PropertyBag propertyBag) at Microsoft.Exchange.WebServices.Data.PropertyBag.LoadFromXml(EwsServiceXmlReader reader, Boolean clear, PropertySet requestedPropertySet, Boolean onlySummaryPropertiesRequested) at Microsoft.Exchange.WebServices.Data.ServiceObject.LoadFromXml(EwsServiceXmlReader reader, Boolean clearPropertyBag) at Microsoft.Exchange.WebServices.Data.ItemAttachment.TryReadElementFromXml(EwsServiceXmlReader reader) at Microsoft.Exchange.WebServices.Data.ComplexProperty.InternalLoadFromXml(EwsServiceXmlReader reader, XmlNamespace xmlNamespace, String xmlElementName, Func2 readAction) at Microsoft.Exchange.WebServices.Data.ComplexProperty.LoadFromXml(EwsServiceXmlReader reader, XmlNamespace xmlNamespace, String xmlElementName) at Microsoft.Exchange.WebServices.Data.ComplexProperty.LoadFromXml(EwsServiceXmlReader reader, String xmlElementName) at Microsoft.Exchange.WebServices.Data.GetAttachmentResponse.ReadElementsFromXml(EwsServiceXmlReader reader) at Microsoft.Exchange.WebServices.Data.ServiceResponse.LoadFromXml(EwsServiceXmlReader reader, String xmlElementName) at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest1.ParseResponse(EwsServiceXmlReader reader) at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ReadResponse(EwsServiceXmlReader ewsXmlReader) at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.ReadResponse(HttpWebResponse response) InnerException:

What I have observed is this occurs when the particular email attachment is Undeliberable email with below content:

The e-mail system had a problem processing this message. Exchange will not try to redeliver this message for you.

Diagnostic information for administrators:

Generating server: MAIL.saaital.com

Hsfsafda@saaital.com

550 5.6.0 M2MCVT.StorageError; storage error in content conversion

Any hints..pointers?? . Really need help on this as I have been struggling for quite some time to process this particular email attachment.

Answer 1

Are you using Exchange Server 2010 SP3 RU2? If not, that might fix the issue. Another poster ran into a similar error and they were also sending an email with an attachment: http://social.technet.microsoft.com/Forums/en-US/fd7ef80e-f80b-47ed-883b-a34511c6233c/a-storage-transient-failure-has-occurred-during-content-conversion?forum=exchangesvrsecuremessaginglegacy.

The support page related to the fix is here: http://support.microsoft.com/kb/2863310.