get emails

 String host = "imap.gmail.com";
        String user = ZappySalesProperties.VENDOR_FILES_EMAIL;
        String password = ZappySalesProperties.VENDOR_FILES_EMAIL_PASS;

        ImapSslServer imapServer = new ImapSslServer(host, user, password);
        ReceiveMailSession session = imapServer.createSession();
        session.open();
        LOGGER.info("Unread messages count: {}", session.getUnreadMessageCount());

        final ReceivedEmail[] receivedEmailsArr = session.receiveEmailAndMarkSeen(EmailFilter.filter().flag(Flags.Flag.SEEN, false));
        final List<ReceivedEmail> emails =
                Arrays.asList(Optional.ofNullable(receivedEmailsArr).orElse(new ReceivedEmail[0]));