public static void main(String[] args)
    {
        if (args.length < 3)
        {
            System.err.println(
                "Usage: IMAPMail <imap server hostname> <username> <password> [TLS]");
            System.exit(1);
        }

        String server = args[0];
        String username = args[1];
        String password = args[2];

        String proto = (args.length > 3) ? args[3] : null;

        IMAPClient imap;

        if (proto != null) {
            System.out.println("Using secure protocol: " + proto);
            imap = new IMAPSClient(proto, true); // implicit
            // enable the next line to only check if the server certificate has expired (does not check chain):
//            ((IMAPSClient) imap).setTrustManager(TrustManagerUtils.getValidateServerCertificateTrustManager());
            // OR enable the next line if the server uses a self-signed certificate (no checks)
//            ((IMAPSClient) imap).setTrustManager(TrustManagerUtils.getAcceptAllTrustManager());
        } else {
            imap = new IMAPClient();
        }
        System.out.println("Connecting to server " + server + " on " + imap.getDefaultPort());

        // We want to timeout if a response takes longer than 60 seconds
        imap.setDefaultTimeout(60000);

        // suppress login details
        imap.addProtocolCommandListener(new PrintCommandListener(System.out, true));

        try
        {
            imap.connect(server);
        }
        catch (IOException e)
        {
            throw new RuntimeException("Could not connect to server.", e);
        }

        try
        {
            if (!imap.login(username, password))
            {
                System.err.println("Could not login to server. Check password.");
                imap.disconnect();
                System.exit(3);
            }

            imap.setSoTimeout(6000);

            imap.capability();

            imap.select("inbox");

            imap.examine("inbox");

            imap.status("inbox", new String[]{"MESSAGES"});

            imap.logout();
            imap.disconnect();
        }
        catch (IOException e)
        {
            System.out.println(imap.getReplyString());
            e.printStackTrace();
            System.exit(10);
            return;
        }
    }