How to Send Email in C# Window Application?

MailMessage m = new MailMessage("mailidofSender", To);
           m.Subject = Subject;
           m.Body = Body;
           m.IsBodyHtml = true;
           SmtpClient smtp = new SmtpClient();
           smtp.Host = "mail.google.com";
           NetworkCredential authinfo = new NetworkCredential("mailidfrom", "YourPassword");
           smtp.UseDefaultCredentials = false;
           smtp.Credentials = authinfo;
           smtp.Send(m);