Email

   public static void SendMail(string emsg)
        {
            string host = "smtp.163.com";
            string username = "...@163.com";
            string pwd = "....";
            string formsb = "...";//接受
            string fromcc = "...";//抄送
           

            SmtpClient sc = new SmtpClient(host);
            sc.DeliveryMethod = SmtpDeliveryMethod.Network;
            sc.UseDefaultCredentials = true;
            sc.Credentials = new System.Net.NetworkCredential(username, pwd);

            string subject = "标题";
            string body = "正文";

            MailMessage msg = new MailMessage();
            msg.From = new MailAddress(username, "程序提醒");
            msg.To.Add(formsb);
            if (!string.IsNullOrEmpty(fromsc))
                msg.CC.Add(fromsc); //抄送人

            msg.BodyEncoding = Encoding.UTF8;
            msg.Subject = subject;
            msg.Body = body;
            msg.IsBodyHtml = true;
            msg.Priority = MailPriority.High;

            try
            {
                sc.Send(msg);
                Console.WriteLine("发送成功！");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }