public HttpResponseMessage SetMailQueue(string body, string subject, List<string> mailTo)
 {
     EmailService emailService = new EmailService();
     bool result = emailService.SetMailQueue(body , subject , mailTo);
     if (result)
         return Request.CreateResponse(HttpStatusCode.OK, true);
     else
         return Request.CreateResponse(HttpStatusCode.InternalServerError, false);
 }