mail retrieval in my project like gamil inbox

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Net.Sockets;
using System.IO;
using System.Windows.Forms;

namespace Pop3Check
{
    public class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

      

        private void btnConnect_Click(object sender, EventArgs e)
        {
            // Create a TCP client for a TCP connection
            TcpClient tcpClient = new TcpClient();
            txtLog.Text = "I say:\r\nConnect me to " + txtServer.Text + ":" + txtPort.Text + "\r\n\r\n";
            // Connect this TCP client to the server IP/name and port specified in the form
            tcpClient.Connect(txtServer.Text, Convert.ToInt32(txtPort.Text));
            // Create a network stream to retrieve data from the TCP client
            NetworkStream netStream = tcpClient.GetStream();
            // We need a stream reader to be able to read the network stream
            System.IO.StreamReader strReader = new System.IO.StreamReader(netStream);
            // If the connection was made successfully
            if (tcpClient.Connected)
            {
                txtLog.Text += "Server says:\r\n" + strReader.ReadLine() + "\r\n\r\n";
                // Buffer to which we're going to write the commands
                byte[] WriteBuffer = new byte[1024];
                // We're passing ASCII characters
                ASCIIEncoding enc = new System.Text.ASCIIEncoding();
                // Pass the username to the server
                WriteBuffer = enc.GetBytes("USER " + txtUser.Text + "\r\n");
                txtLog.Text += "I say:\r\nHere's the username: " + txtUser.Text + "\r\n\r\n";
                netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
                txtLog.Text += "Server says\r\n" + strReader.ReadLine() + "\r\n\r\n";
                // Pass the password to the server
                WriteBuffer = enc.GetBytes("PASS " + txtPass.Text + "\r\n");
                txtLog.Text += "I say:\r\nHere's the password: " + txtPass.Text + "\r\n\r\n";
                netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
                txtLog.Text += "Server says:\r\n" + strReader.ReadLine() + "\r\n\r\n";
                // Now that we are (probably) authenticated, list the messages
                WriteBuffer = enc.GetBytes("LIST\r\n");
                txtLog.Text += "I say:\r\nPlease list the messages\r\n\r\n";
                netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
                string ListMessage;
                while (true)
                {
                    ListMessage = strReader.ReadLine();
                    if (ListMessage == ".")
                    {
                        // It's the last message so exit the loop and continue
                        break;
                    }
                    else
                    {
                        // List the message
                        txtLog.Text += "Server says:\r\n" + ListMessage + "\r\n\r\n";
                        continue;
                    }
                }
                txtLog.Text += "I say:\r\nThanks, we will disconnect now\r\n\r\n";
                WriteBuffer = enc.GetBytes("QUIT\r\n");
                netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
                txtLog.Text += "Server says:\r\n" + strReader.ReadLine();
            }
        }
/// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.txtLog = new System.Windows.Forms.TextBox();
            this.txtPort = new System.Windows.Forms.TextBox();
            this.txtPass = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.txtUser = new System.Windows.Forms.TextBox();
            this.txtServer = new System.Windows.Forms.TextBox();
            this.btnConnect = new System.Windows.Forms.Button();
            this.label5 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(-66, -29);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // txtLog
            // 
            this.txtLog.Location = new System.Drawing.Point(12, 114);
            this.txtLog.Multiline = true;
            this.txtLog.Name = "txtLog";
            this.txtLog.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
            this.txtLog.Size = new System.Drawing.Size(401, 444);
            this.txtLog.TabIndex = 1;
            // 
            // txtPort
            // 
            this.txtPort.Location = new System.Drawing.Point(298, 10);
            this.txtPort.Name = "txtPort";
            this.txtPort.Size = new System.Drawing.Size(57, 20);
            this.txtPort.TabIndex = 2;
            this.txtPort.Text = "110";
            // 
            // txtPass
            // 
            this.txtPass.Location = new System.Drawing.Point(298, 36);
            this.txtPass.Name = "txtPass";
            this.txtPass.Size = new System.Drawing.Size(115, 20);
            this.txtPass.TabIndex = 3;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(12, 13);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(72, 13);
            this.label1.TabIndex = 4;
            this.label1.Text = "POP3 Server:";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(236, 13);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(29, 13);
            this.label2.TabIndex = 5;
            this.label2.Text = "Port:";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(26, 43);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(58, 13);
            this.label3.TabIndex = 6;
            this.label3.Text = "Username:";
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(236, 39);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(56, 13);
            this.label4.TabIndex = 7;
            this.label4.Text = "Password:";
            // 
            // txtUser
            // 
            this.txtUser.Location = new System.Drawing.Point(90, 36);
            this.txtUser.Name = "txtUser";
            this.txtUser.Size = new System.Drawing.Size(125, 20);
            this.txtUser.TabIndex = 8;
            // 
            // txtServer
            // 
            this.txtServer.Location = new System.Drawing.Point(90, 10);
            this.txtServer.Name = "txtServer";
            this.txtServer.Size = new System.Drawing.Size(125, 20);
            this.txtServer.TabIndex = 9;
            // 
            // btnConnect
            // 
            this.btnConnect.Location = new System.Drawing.Point(328, 62);
            this.btnConnect.Name = "btnConnect";
            this.btnConnect.Size = new System.Drawing.Size(85, 28);
            this.btnConnect.TabIndex = 10;
            this.btnConnect.Text = "Connect";
            this.btnConnect.UseVisualStyleBackColor = true;
            this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(12, 98);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(28, 13);
            this.label5.TabIndex = 11;
            this.label5.Text = "Log:";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(425, 570);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.btnConnect);
            this.Controls.Add(this.txtServer);
            this.Controls.Add(this.txtUser);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.txtPass);
            this.Controls.Add(this.txtPort);
            this.Controls.Add(this.txtLog);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "POP3Check";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox txtLog;
        private System.Windows.Forms.TextBox txtPort;
        private System.Windows.Forms.TextBox txtPass;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.TextBox txtUser;
        private System.Windows.Forms.TextBox txtServer;
        private System.Windows.Forms.Button btnConnect;
        private System.Windows.Forms.Label label5;
    }
    }
}