Getting inner exception "dtd is prohibited in this xml document exchange" while reading emails from outlook

Question

Getting error "The response received from the service didn't contain valid XML." with inner exception "dtd is prohibited in this xml document exchange" while reading emails from outlook(Not while reading every mail).
Can anybody please tell me what might be the issue. Below is the code where I am getting error
FindItemsResults<Item> RetrievedItems=null ;
RetrievedItems = service.FindItems(FIds, new ItemView(4));
String[] SignatureList = ConfigurationManager.AppSettings.Get("SignatureTypes").Split(',');
if (RetrievedItems != null && RetrievedItems.Count() > 0)
RetrievedItems.ToList().ForEach(x =>
try
List<String> Attachments = new List<String>();
List<String> ScanFileName = new List<String>();
bool IsAvailable = true;
//Getting error while Load() - below line of code
((Microsoft.Exchange.WebServices.Data.EmailMessage)x).Load();
Vo.EmailMessage msg = new Vo.EmailMessage();
msg.MessageId = ((Microsoft.Exchange.WebServices.Data.EmailMessage)x).Id.UniqueId;
msg.From = ((Microsoft.Exchange.WebServices.Data.EmailMessage)x).From.Address;
((Microsoft.Exchange.WebServices.Data.EmailMessage)x).ToRecipients.ToList().ForEach(z => msg.To += z.Address + ",");
((Microsoft.Exchange.WebServices.Data.EmailMessage)x).ReplyTo.ToList().ForEach(y => msg.ReplyToEmailAddress += y.Address + ",");
msg.Subject = ((Microsoft.Exchange.WebServices.Data.EmailMessage)x).Subject;
msg.Body = ((Microsoft.Exchange.WebServices.Data.EmailMessage)x).Body.Text;
msg.Dated = ((Microsoft.Exchange.WebServices.Data.EmailMessage)x).DateTimeSent;
Please help.

Answer 1

Hi,
Thank you for your post.
This is a quick note to let you know that we are performing research on this issue.
Niko Cheng
TechNet Community Support