MVC web application

Question

[HttpPost]

public ActionResult Contact_us(MailModel mm)

{

//return View();

// validate captcha

if (Session["Captcha"] == null || Session["Captcha"].ToString() != mm.Captcha)

{

ModelState.AddModelError("Captcha", "Wrong value of sum, please try again.");

//dispay error and generate a new captcha

return View();

}

else

{

if (ModelState.IsValid)

{

SmtpClient objSMTP = new SmtpClient(ConfigurationManager.AppSettings["SMTPServer"].ToString());

objSMTP.Credentials = new System.Net.NetworkCredential(ConfigurationManager.AppSettings["MailUserName"].ToString(), ConfigurationManager.AppSettings["MailPassword"].ToString());

System.Net.Mail.MailMessage objMailMessage = new System.Net.Mail.MailMessage();

try

{

objMailMessage.From = new MailAddress(ConfigurationManager.AppSettings["MailUserName"].ToString());

objMailMessage.Subject = "Enquiry received from the Website.";

objMailMessage.To.Add("[email protected]");

objMailMessage.Body = "<b> Name </b> : " + mm.Name + " " + mm.LastName + " <br/><br/> <b> Telephone No : </b>" + mm.Telephone + "<br/><br/><b>Email : </b>" + mm.Email + " <b>Enquiry : </b>" + mm.Message;

objMailMessage.Priority = System.Net.Mail.MailPriority.High;

objMailMessage.IsBodyHtml = true;

objSMTP.Send(objMailMessage);

//Response.Redirect("thankyou.aspx");

}

catch (Exception)

{

throw;

//MessageBox.Show("Message not sent : " + exp.Message);

}

return RedirectToAction("Thankyou");

}

return RedirectToAction("Thankyou");

}

}