Socket socket_s = null;

        Socket socket_c = null;

        IPEndPoint ipe = null;

        public Form1()

        {

            InitializeComponent();

            ipe = new IPEndPoint(IPAddress.Any, 25);

            socket_s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            try

            {

                socket_s.Bind(ipe);

                socket_s.Listen(7);

            }

            catch (SocketException ex) {

                MessageBox.Show(ex.Message);

            }

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            listView2.Items.Add(new ListViewItem(new string[2]{DateTime.Now.ToShortTimeString(),"**** PublicMail v1.0 Build20140303 starts up ****"}));

            Thread thread_start = new Thread(new ThreadStart(start));

            thread_start.Start();



        }

        void start() {

            while (true) {

                socket_c= socket_s.Accept();

                Debug.WriteLine("Connect from:"+socket_c.RemoteEndPoint.ToString());

                Thread th = new Thread(new ThreadStart(receive));

                th.Start();

            }

        }

        void receive() {

            bool keepConnect = true;

            Socket temp = socket_c;

            byte[] buff=new byte[1024];

            while (keepConnect) {

        &n