Java Mail POP3 Client

import java.util.Properties;

import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;

public class MainClass {

 public static void main(String[] args) throws Exception {

 Properties props = new Properties();

 String host = "yourHost.edu";
 String username = "userName";
 String password = "mypassword";
 String provider = "pop3";

 Session session = Session.getDefaultInstance(props, null);
 Store store = session.getStore(provider);
 store.connect(host, username, password);

 Folder inbox = store.getFolder("INBOX");
 if (inbox == null) {
 System.out.println("No INBOX");
 System.exit(1);
 }
 inbox.open(Folder.READ_ONLY);

 Message[] messages = inbox.getMessages();
 for (int i = 0; i < messages.length; i++) {
 System.out.println("Message " + (i + 1));
 messages[i].writeTo(System.out);
 }
 inbox.close(false);
 store.close();
 }
}