C#邮件发送

string v_smtpAddress ="smtp.qq.com";//smtp地址，如smtp.163.com
         string v_sendMailUserName = "myqq@qq.com";//发送邮件使用的用户名
        string v_sendMailPassword = "mypassword";//发送邮件使用的密码
         string v_sendMailAddress = "myqq@qq.com";//发送邮件的mail地址
         string v_receiveMailAddress = "yourqq@qq.com;";//接收邮件的mail地址
        string v_mailSubject = "title";//邮件主题
 
 
        SmtpClient smtp = new SmtpClient(v_smtpAddress);
        smtp.Credentials = new System.Net.NetworkCredential(v_sendMailUserName, v_sendMailPassword);
        MailMessage mes = new MailMessage();

        mes.From = new MailAddress(v_sendMailAddress);
        mes.To.Add(v_receiveMailAddress);

        mes.Subject = v_mailSubject;
        mes.Body ="this is body";
        mes.IsBodyHtml = true;//使用是否html格式

         //增加附件
        // System.Net.Mail.Attachment mailAttach_1 = new  Attachment(@"d:\b.txt");
        //mes.Attachments.Add(mailAttach_1);
        for (int i = 0; i < 20; i++)
        {
            //循环发送多次，可不要乱发垃圾哦~
            smtp.Send(mes);
        }
        //mailAttach_1.Dispose();//释放由附件占用的资源

            //myHander h = speak;
            //h += speak2;

            //Delegate[] handers = h.GetInvocationList();
            //foreach (myHander a in handers)
            //{
            //    Console.WriteLine(h());
            //}
                Console.WriteLine("success");