using System.Web.Mail;

protected void SendEMail(string MailTo, string MailFrom, string MailSubject, string MailBody)
    {
        MailMessage objEmail = new MailMessage();
        objEmail.To = MailTo;
        objEmail.From = MailFrom;
        objEmail.Subject = MailSubject;
        MailBody = MailBody.Replace("\r\n", "
");
        MailBody = MailBody.Replace("\t", "     ");
        objEmail.Body = MailBody;
        objEmail.Priority = MailPriority.High;
        objEmail.BodyFormat = MailFormat.Html;

        try
        {
            SmtpMail.Send(objEmail);
        }
        catch (Exception exc)
        {
            Response.Write("Send failure: " + exc.ToString());
        }            
    }