C#之发送邮件汇总

 <div>
       请输入您的邮箱:<input type="text" id="email" /> <input type="button" value="获取验证码" id="getYZM" /><br/>
       请输入验证码:<input type="text" id="yzm"/>
    </div>
    <script src="~/Scripts/jquery-1.8.2.min.js"></script>
    <script>
        $("#getYZM").click(function () {
            var emailName = $("#email").val().trim();
            $.post(‘@Url.Action("SendYanZhengMa","Home")‘, { recEmail: emailName }, function (_data) {
                if (_data=="no") {
                    alert("发送失败!");
                } else {
                    $("#yzm").val(_data);
                }
            })
        });
    </script>

       public ActionResult Index()
        {
            return View();
        }
        [HttpPost]
        public ActionResult SendYanZhengMa(string recEmail)
        {
            string result = "no";
            try
            {
                //确定smtp服务器地址。实例化一个Smtp客户端
                System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient("smtp.yeah.net");
                //生成一个发送地址
                string strFrom = "techblog@yeah.net";              
                //构造一个发件人地址对象
                MailAddress from = new MailAddress(strFrom, "RYJ", Encoding.UTF8);//发送地址，发送人的名字
                //构造一个收件人地址对象
                MailAddress to = new MailAddress("2636922684@qq.com", "一明", Encoding.UTF8);//收件地址，收件人的名字

                //构造一个Email的Message对象
                MailMessage message = new MailMessage(from, to);

             
                //添加邮件主题和内容
                message.Subject = "YM互动登陆验证消息";
                message.SubjectEncoding = Encoding.UTF8;
                Random r=new Random();
                int n= r.Next(100000,999999);
                message.Body = "您的验证码是:"+n;
                message.BodyEncoding = Encoding.UTF8;

                //设置邮件的信息
                client.DeliveryMethod = SmtpDeliveryMethod.Network;
                message.BodyEncoding = System.Text.Encoding.UTF8;
                message.IsBodyHtml = false;

                //如果服务器支持安全连接，则将安全连接设为true。
                //gmail支持，163不支持，如果是gmail则一定要将其设为true               
                    client.EnableSsl = true;

                //设置用户名和密码。
                //string userState = message.Subject;
                client.UseDefaultCredentials = false;
                string username = "techblog";//发送邮件的用户名
                string passwd = "2436chao";//密码
                //用户登陆信息
                NetworkCredential myCredentials = new NetworkCredential(username, passwd);
                client.Credentials = myCredentials;
                //发送邮件
                client.Send(message);
                //提示发送成功
                result = n.ToString();
            }
            catch (Exception ex)
            {
                result = "no";
            }

            return Content(result);
        }