如何发送APNS发送通知。它可以从asp.net中的本地主机运行，但当我们在Windows服务器中托管应用程序接口时失败

using System;
using System.Security.Cryptography.X509Certificates;
using System.Net;
using System.Net.Sockets;

public class APNSender
{
    private static string apnsHost = "gateway.push.apple.com";
    private static int apnsPort = 2195;
    private static string certificatePath = "path/to/certificate.pem";
    private static string certificatePassword = "certificate_password";

    public static void SendNotification(string deviceToken, string message)
    {
        X509Certificate2 certificate = new X509Certificate2(certificatePath, certificatePassword);

        TcpClient client = new TcpClient(apnsHost, apnsPort);
        SslStream sslStream = new SslStream(client.GetStream());
        sslStream.AuthenticateAsClient(apnsHost, new X509CertificateCollection() { certificate }, System.Security.Authentication.SslProtocols.Tls, false);

        byte[] payload = GeneratePayload(deviceToken, message);
        byte[] notification = GenerateNotification(payload);

        sslStream.Write(notification);
        sslStream.Flush();

        // 处理响应
        byte[] response = new byte[6];
        sslStream.Read(response, 0, response.Length);

        // 关闭连接
        sslStream.Close();
        client.Close();
    }

    private static byte[] GeneratePayload(string deviceToken, string message)
    {
        // 构造推送通知的Payload
        // 可以设置标题、内容、声音、角标等信息
        // 参考苹果官方文档：https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/generating_a_remote_notification
        throw new NotImplementedException();
    }

    private static byte[] GenerateNotification(byte[] payload)
    {
        // 构造推送通知的格式
        // 参考苹果官方文档：https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/generating_a_remote_notification
        throw new NotImplementedException();
    }
}

string deviceToken = "device_token";
string message = "Hello, World!";

APNSender.SendNotification(deviceToken, message);