利用asp.net內建郵件組件 發送郵件，支援126,163,gmail,qq等郵箱__.net

    #region 郵件發送    /// <summary>    /// 發送郵件支援HTML格式 先引用System.Net.Mail;    /// </summary>    /// <param name="MailFrom">發送人Email 如demo@126.com</param>    /// <param name="MailServer">郵件伺服器 如mail.126.com</param>    /// <param name="MailUserName">登陸使用者名稱 如demo@126.com</param>    /// <param name="MailPassword">登陸密碼 如123456</param>    /// <param name="mailto">收件者郵箱</param>    /// <param name="title">郵件標題</param>    /// <param name="msg">郵件內文</param>    /// <returns>成功 true; 失敗 false</returns>    public static bool SendSmtpEmail(string MailFrom, string MailServer, string MailUserName, string MailPassword, string mailto, string title, string msg)    {        var client = new SmtpClient();        client.Host = MailServer;        client.UseDefaultCredentials = false;        client.Credentials = new System.Net.NetworkCredential(MailUserName, MailPassword);        client.DeliveryMethod = SmtpDeliveryMethod.Network;        System.Net.Mail.MailMessage message = new MailMessage(MailFrom, mailto);        message.Subject = title;        message.Body = msg;        message.SubjectEncoding = System.Text.Encoding.UTF8;        message.BodyEncoding = System.Text.Encoding.UTF8;        message.IsBodyHtml = true;        message.Priority = MailPriority.High;        message.IsBodyHtml = true;        try        {            client.Send(message);            return true;        }        catch        {            return false;        }    }    #endregion