pop3Props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
pop3Props.setProperty("mail.pop3.socketFactory.fallback", fallback);
pop3Props.setProperty("mail.pop3.port", portNumber);
pop3Props.setProperty("mail.pop3.socketFactory.port", portNumber);
URLName url = new URLName("pop3", host, port, "",username, password);
Session session = Session.getInstance(pop3Props, null);
Store store = new POP3SSLStore(session, url);
store.connect();