Creating Forward Email through SDK

Here's the sample code to create Forward Email through SDK

 private static Guid CreateForwardEmail(Guid existingEmailID)  
 {  
   Entity existingEmail = _service.Retrieve("email", existingEmailID, new ColumnSet("from", "createdon", "to", "cc", "subject", "description", "regardingobjectid"));  
   Entity oEmail = new Entity("email");  
   oEmail["regardingobjectid"] = existingEmail["regardingobjectid"];  
   oEmail["subject"] = "FW: " + existingEmail["subject"];  
   oEmail["description"] = "<FONT size=2 face='Tahoma, Verdana, Arial'><BR>------------------- Original Message -------------------<BR>";  
   oEmail["description"] += "<B>From:</B> " + ((EntityReference)((Microsoft.Xrm.Sdk.EntityCollection)existingEmail["from"]).Entities[0]["partyid"]).Name + "<BR>";  
   oEmail["description"] += "<B>Received:</B> " + ((DateTime)existingEmail["createdon"]).ToString("d/M/yyyy h:m tt") + "<BR>";  
   oEmail["description"] += "<B>To:</B> ";  
   EntityCollection toParties = (Microsoft.Xrm.Sdk.EntityCollection)existingEmail["to"];  
   bool firstRecord = true;  
   foreach (Entity to in toParties.Entities)  
   {  
     if (firstRecord)  
       firstRecord = false;  
     else  
       oEmail["description"] += "; ";  
     oEmail["description"] += ((EntityReference)to["partyid"]).Name;  
   }  
   oEmail["description"] += "<BR>";  
   oEmail["description"] += "<B>Cc:</B> ";  
   EntityCollection ccParties = (Microsoft.Xrm.Sdk.EntityCollection)existingEmail["cc"];  
   firstRecord = true;  
   foreach (Entity cc in ccParties.Entities)  
   {  
     if (firstRecord)  
       firstRecord = false;  
     else  
       oEmail["description"] += "; ";  
     oEmail["description"] += ((EntityReference)cc["partyid"]).Name;  
   }  
   oEmail["description"] += "<BR>";  
   oEmail["description"] += "<B>Subject:</B> " + existingEmail["subject"].ToString() + "</FONT><BR><BR>";  
   oEmail["description"] += "<FONT size=2 face='Tahoma, Verdana, Arial'>" + existingEmail["description"].ToString() + "</FONT>";  
   Guid newEmailID = _service.Create(oEmail);  
   QueryByAttribute attachmentQuery = new QueryByAttribute("activitymimeattachment");  
   attachmentQuery.ColumnSet = new ColumnSet("objecttypecode", "mimetype", "filename", "body");  
   attachmentQuery.AddAttributeValue("objectid", existingEmail.Id);  
   attachmentQuery.AddAttributeValue("objecttypecode", "email");  
   EntityCollection ecAttachments = _service.RetrieveMultiple(attachmentQuery);  
   foreach (Entity attachment in ecAttachments.Entities)  
   {  
     attachment.Id = Guid.Empty;  
     attachment.Attributes.Remove("activitymimeattachmentid");  
     attachment["objectid"] = new EntityReference("email", newEmailID);  
     _service.Create(attachment);  
   }  
   return newEmailID;  
 }