Send email using smtp object in c#

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());
}
}