C#

private void timer1_Tick(object sender, EventArgs e)
{
    MailCheck.Connect("pop.sixhoej.net", 110);

    NetworkStream NS = MailCheck.GetStream();
    StreamReader SR = new StreamReader(NS);
    StreamWriter SW = new StreamWriter(NS);

    string output = SR.ReadLine();

    if (output == "+OK Hello there.")
    {
        SW.WriteLine("USER [e-mail address goes here]");
        System.Threading.Thread.Sleep(1000);
        SW.WriteLine("PASS [password goes here]");
        System.Threading.Thread.Sleep(3000);
        SW.WriteLine("STAT");
        System.Threading.Thread.Sleep(1000);
        output = SR.ReadLine();

        output = output.Substring(4, 2);

        MessageBox.Show("You have " + output.ToString() + " unread mail(s)");
     }
}