C# 邮件发送

        protected void Button1_Click(object sender, EventArgs e)
        {

            jmail.Message jmessage = new jmail.Message();
            jmessage.Charset = "GB2312";//编码
            jmessage.From = "[e-mail]";//发送人的邮件地址
            jmessage.FromName = "系统管理员";//发送人的姓名
            //jmessage.ReplyTo="[e-mail]";//回复时的地址
            jmessage.Subject = "888888！";//邮件主题
            jmessage.AddRecipient("[e-mail]", "", "");//接收人的邮件地址，姓名
            jmessage.Body = "你在本网站的帐号密码已经成功找回，请你妥善保管！卡号：  + cardpassword";//邮件内容
            jmessage.MailServerUserName = "userName";//发送者邮箱的用户名
            jmessage.MailServerPassWord = "password";//发送者邮箱的密码
            jmessage.Send("mail.mail.com.cn", false);//发送着邮箱的smtp服务器地址
             Response.Write("<script language='javascript'>alert('密码已成功发送到指定邮箱，请查收！');</script>");
            jmessage.Close();
        }