Character reference "&# -- EWS API error

Hi,

We are using microsoft exchange web service to read emails and copy the metadata of the email into the database.  
In case there is any encrypted data in the email body, the API to read the emails throws the XMLParse exception. 
We had to manually find the email causing the exception in the mailbox and remove it from the mailbox so that the API which reads the emails from the inbox runs fine.
We are using version: Exchange2007_SP1 to create the service object. 
Could you please suggest how to get rid of the error? Will upgrading to upper version Exchange2010_SP1 solve the problem?


Error details:
---------------------

Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[19,58] 
Message: Character reference "&# 
    at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:598)
     at com.sun.xml.internal.stream.XMLEventReaderImpl.nextEvent(XMLEventReaderImpl.java:83)
     at microsoft.exchange.webservices.data.EwsXmlReader.read(EwsXmlReader.java:171)
     at microsoft.exchange.webservices.data.EwsXmlReader.readValue(EwsXmlReader.java:475)
     at microsoft.exchange.webservices.data.MessageBody.readTextValueFromXml(MessageBody.java:107)
     at microsoft.exchange.webservices.data.ComplexProperty.loadFromXml(ComplexProperty.java:187)
     at microsoft.exchange.webservices.data.ComplexProperty.loadFromXml(ComplexProperty.java:211)
     at microsoft.exchange.webservices.data.ComplexPropertyDefinitionBase.internalLoadFromXml(ComplexPropertyDefinitionBase.java:95)
     at microsoft.exchange.webservices.data.ComplexPropertyDefinitionBase.loadPropertyValueFromXml(ComplexPropertyDefinitionBase.java:118)
     at microsoft.exchange.webservices.data.PropertyBag.loadFromXml(PropertyBag.java:487)
     at microsoft.exchange.webservices.data.ServiceObject.loadFromXml(ServiceObject.java:268)
     at microsoft.exchange.webservices.data.EwsServiceXmlReader.readServiceObjectsCollectionFromXml(EwsServiceXmlReader.java:212)
     at microsoft.exchange.webservices.data.GetItemResponse.readElementsFromXml(GetItemResponse.java:56)
     at microsoft.exchange.webservices.data.ServiceResponse.loadFromXml(ServiceResponse.java:102)
     at microsoft.exchange.webservices.data.MultiResponseServiceRequest.parseResponse(MultiResponseServiceRequest.java:52)
     at microsoft.exchange.webservices.data.ServiceRequestBase.readResponse(ServiceRequestBase.java:459)
     at microsoft.exchange.webservices.data.SimpleServiceRequestBase.readResponse(SimpleServiceRequestBase.java:110)
     at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(SimpleServiceRequestBase.java:38)


encrypted content in the email body is like 6ЖФf√FVГF√ б √ФfÐ’&ж F√ЖЦ╡  .