MailMessage mail = new MailMessage();
//set the addresses
mail.From = new MailAddress("
mail.To.Add("
//set the content
mail.Subject = "Vestibulares Antigos";
mail.Body = corpo;
mail.Priority = MailPriority.High;
//send the message
SmtpClient smtp = new SmtpClient("smtp.live.com");
smtp.Port = 25;
smtp.EnableSsl = true;//tem que ser true para hotmail...
NetworkCredential credenciais = new NetworkCredential("
smtp.Credentials = credenciais;
smtp.Send("Mensagem!");