Asp.Net定时发送邮件方法（使用线程的方法）

asp.net中Global.asax的code:

protected void Application_Start(object sender, EventArgs e)
        {
            System.Timers.Timer timer = new System.Timers.Timer(60000);//一分钟执行一次,单位为毫秒
            timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
            timer.AutoReset = false; //只执行一次
            timer.Enabled = true; //启动定时器
        }


     protected void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {

                  MailMessage mailmsg = new MailMessage(); //需引用using System.Net和using System.Net.Mail;
                   mailmsg.From = new MailAddress("[e-mail]", "发件人姓名");
                   mailmsg.To.Add("[e-mail]");
                   mailmsg.Subject = "邮件主题";
                   mailmsg.Body = "邮件内容";
                   mailmsg.BodyEncoding = System.Text.Encoding.UTF8;
                   mailmsg.IsBodyHtml = true;
                  SmtpClient sendmsg = new SmtpClient();
                  sendmsg.Host = "smtp.126.com";
                  sendmsg.UseDefaultCredentials = false;
                 sendmsg.Credentials = new NetworkCredential("[e-mail]", "该邮箱密码");
                 sendmsg.DeliveryMethod = SmtpDeliveryMethod.Network;
                 sendmsg.Send(mailmsg);
                 mailmsg.Dispose();

        }