protected void Button1_Click(object sender, EventArgs e)

        {

            //我这里测试的邮件账号是codeany@163.com

            //测试的密码是就不投入给大家了，改成自己的密码就好了

            //接受邮箱可以随便写一个你自己喜欢的邮箱

            jmail.Message Jmail = new jmail.Message();          //创建一个jmail对象                  

            String Subject = "邮件测试";                            //设置发送邮件的主题

            String body = "来自测试邮件";           //设置发送邮件的内容

            String FromEmail = "593981469@qq.com";               //发送的邮箱

            String ToEmail = "425445289@qq.com";                 //接受的邮箱

            Jmail.Silent = true;                                //安静的发送邮件

            Jmail.Charset = "GB2312";                           //设置发送邮件的字符集

            Jmail.ContentType = "text/html";

            Jmail.AddRecipient(ToEmail);                        //添加发送的邮件

            Jmail.From = FromEmail;                             //从何处发送

            Jmail.MailServerUserName = "123";               //发件人姓名

            Jmail.MailServerPassWord = "*********";             //发件邮件的密码 

            Jmail.Subject = Subject;                            //发件邮件的主题

            Jmail.AddAttachment(@"d:\data.txt", true, null);    //添加I