How Can I Retrieve Email In C# Windows Form?

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C#

C#5.0

Hi,
i want to retrieve email in C# windows form and download their attachment and save email body and subject in database.

this is code i used to see the messages body but it cant download attachment.

string response;
   string from = null;
   string subject = null;
   int totmessages;
   try
   {
       mailclient = new TcpClient(hostname.Text, 110);
   }
   catch (SocketException)
   {
       status.Text = "Unable to connect to server";
       return;
   }
ns = mailclient.GetStream();
   sr = new StreamReader(ns);
   sw = new StreamWriter(ns);
   response = sr.ReadLine();
   sw.WriteLine("User " + username.Text); //Send username
   sw.Flush();
   response = sr.ReadLine();
   if (response.Substring(0, 3) == "-ER")
   {
       status.Text = "Unable to log into server";
       return;
   }
   sw.WriteLine("Pass " + password.Text); //Send password
   sw.Flush();
   try
   {
       response = sr.ReadLine();
   }
   catch (IOException)
   {
       status.Text = "Unable to log into server";
       return;
   }
   if (response.Substring(0, 4) == "-ERR")
   {
       status.Text = "Unable to log into server";
       return;
   } sw.WriteLine("stat"); //Send stat command to getnumber of messages
   sw.Flush();
   response = sr.ReadLine();
   string[] nummess = response.Split(' ');
   totmessages = Convert.ToInt16(nummess[1]);
   if (totmessages > 0)
   {
       status.Text = "you have " + totmessages + " messages";
   }
   else
   {
       status.Text = "You have no messages";
   }
   for (int i = 1; i <= totmessages; i++)
   {
       sw.WriteLine("top " + i + " 0"); //read header of each message
       sw.Flush();
       response = sr.ReadLine();
       while (true)
       {
           response = sr.ReadLine();
           if (response == ".")
           break;
           if (response.Length > 4)
           {
               if (response.Substring(0, 5) == "From:")
                   from = response;
               if (response.Substring(0, 8) == "Subject:")
                   subject = response;
           }
       }
       messages.Items.Add(i + " " + from + " " + subject);

thanks