send email in C# asp.net MVC5

try
{

    string from = "xxx@gmail.com";
    //Replace this with your own correct Gmail Address

    string to = "yyy@gmail.com";
    //Replace this with the Email Address
    //to whom you want to send the mail

    System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
    mail.To.Add(to);
    mail.From = new MailAddress(from, "One Ghost", System.Text.Encoding.UTF8);
    mail.Subject = "This is a test mail";
    mail.SubjectEncoding = System.Text.Encoding.UTF8;
    mail.Body = "This is Email Body Text";
    mail.BodyEncoding = System.Text.Encoding.UTF8;
    mail.IsBodyHtml = true;
    mail.Priority = MailPriority.High;

    SmtpClient client = new SmtpClient("smtp.gmail.com", 587);

    //Add the Creddentials- use your own email id and password
    System.Net.NetworkCredential nt =
    new System.Net.NetworkCredential(from, "zzzzzz");

    client.Port = 587; // Gmail works on this port
    client.EnableSsl = true; //Gmail works on Server Secured Layer
    client.UseDefaultCredentials = false;
    client.Credentials = nt;
    client.Send(mail);

}
catch(Exception ex)
{
    Response.Write("Could not send the e-mail - error: " + ex.Message);
}
return View();