import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public class AllHeaderClient {

    public static void main(String[] args) throws Exception {
        String host = "192.168.10.205";
        String user = "test";
        String password = "test";

        // Get system properties
        Properties properties = System.getProperties();

        // Get the default Session object.
        Session session = Session.getDefaultInstance(properties);

        // Get a Store object that implements the specified protocol.
        Store store = session.getStore("pop3");

        //Connect to the current host using the specified username and password.
        store.connect(host, user, password);

        //Create a Folder object corresponding to the given name.
        Folder folder = store.getFolder("inbox");

        // Open the Folder.
        folder.open(Folder.READ_ONLY);

        Message[] messages = folder.getMessages();
        for (int i = 0; i < messages.length; i++) {
            System.out.println("------------ Message " + (i + 1) + " ------------");
            // Here's the difference...
            Enumeration headers = messages[i].getAllHeaders();
            while (headers.hasMoreElements()) {
                Header h = (Header) headers.nextElement();
                System.out.println(h.getName() + ": " + h.getValue());
            }
            System.out.println();
        }
    }
}