MailMessage Msg = new MailMessage(); Msg.From = new MailAddress("geral@seusite.com"); Msg.To.Add("geral@seusite.com"); StreamReader reader = new StreamReader(Server.MapPath("modeloemailcompra.html")); string readFile = reader.ReadToEnd(); string StrContent = ""; StrContent = readFile; Msg.Subject = "Cheirabem - ca vai um teste"; Msg.Body = StrContent.ToString(); Msg.IsBodyHtml = true; // your remote SMTP server IP. SmtpClient smtp = new SmtpClient("mail.seusite.com"); smtp.Credentials = new NetworkCredential("site", "passe"); smtp.Send(Msg);