System.Net.Mail.SmtpClient client = new SmtpClient(SmtpServer);
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(UID, PWD);
client.DeliveryMethod = SmtpDeliveryMethod.Network;

System.Net.Mail.MailMessage message = new MailMessage(From,TO, Subject,Body);
message.BodyEncoding = System.Text.Encoding.UTF8;
message.IsBodyHtml = true;
client.Send(message);