kern/src/de/memtext/hbt/Checker.java

package de.memtext.hbt;

import java.io.IOException;
import java.util.Properties;

import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class Checker {

	public static void check(Session emailSession, String user, String password)
			throws MessagingException, IOException {

		// create the POP3 store object and connect with the pop server
		// pop3s wichtig -> vermutlich secure
		Store store = emailSession.getStore("pop3s");
		store.connect(emailSession.getProperty("mail.pop3.host"), user, password);

		Folder emailFolder = store.getFolder("INBOX");
		emailFolder.open(Folder.READ_ONLY);

		// messages werden geholt, können nur ausgelesen werden, wenn Folder noch open
		// ist!
		Message[] messages = emailFolder.getMessages();

		System.out.println("messages.length---" + messages.length);

		for (int i = 0, n = messages.length; i < n; i++) {
			Message message = messages[i];
			System.out.println("---------------------------------");
			System.out.println("Email Number " + (i + 1));
			System.out.println("Subject: " + message.getSubject());
			System.out.println("From: " + message.getFrom()[0]);
			System.out.println("Text: " + message.getContent().toString());

		}

		// close the store and folder objects
		emailFolder.close(false);
		store.close();

	}

	private static void send(Session emailSession, String user, String recipient, String subject, String text,
			String password) throws AddressException, MessagingException {
		MimeMessage replyMessage = new MimeMessage(emailSession);
		// replyMessage = (MimeMessage) message.reply(false);
		replyMessage.setFrom(new InternetAddress(user));
		replyMessage.setRecipients(Message.RecipientType.TO, recipient);
		replyMessage.setSubject(subject);
		replyMessage.setText(text);
		Transport t = emailSession.getTransport("smtp");
		t.connect(user, password);
		t.sendMessage(replyMessage, replyMessage.getAllRecipients());
		System.out.println("Message sent...");
	}

	private static Session initSession(String pophost, String smtphost) {
		Properties properties = new Properties();
		properties.put("mail.pop3.host", pophost);
		properties.put("mail.pop3.port", "995");
		properties.put("mail.pop3.starttls.enable", "true");
		properties.put("mail.smtp.auth", "true");
		properties.put("mail.smtp.starttls.enable", "true");
		properties.put("mail.smtp.host", smtphost);
		properties.put("mail.smtp.port", "25");
		return Session.getDefaultInstance(properties);
	}

	public static void main(String[] args) {
		Session session = initSession("pop3.strato.de", "smtp.strato.de");
		String username = "heartbeat@mbisping.de";
		String password = "$Anfang1200";

		try {
			check(session, username, password);
			send(session, username, "danielq@memtext.de", "From Düsseldorf with fun...", "This is the memtext's first digitial 'heartbeat' :-)\n send via java mail - \nThanks and see you around :-)",
					password);
		} catch (MessagingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}