Asp.NEt邮箱验证修改密码通过邮箱找回密码功能

<input type="text" name="Mail" id="Mail"/>
 <span>*请输入邮箱</span><br/>
 <asp:Button ID="zhuce" runat="server" Text="tijiao" OnClick="btn" />

protected void btn(object sender, EventArgs e)
 {
 string mail = Context.Request["Mail"];
 MailMessage message = new MailMessage();
 message.From = new MailAddress("######", "#####");//发件人地址
 message.To.Add(mail);//目标发件地址
 message.Subject = "dssdds";//邮件标题
 message.Body = "nihao";//邮件内容
 //发送邮件的smtp服务器地址
 SmtpClient smtp = new SmtpClient("smtp.163.com");
 smtp.Credentials = new NetworkCredential("#########", "######");//发件人的用户名和密码
 smtp.Send(message);
 }