Connect to IMAP using JavaMail over SSL

Connect to and get mailbox information from an imaps server using JavaMail. I'm using a custom SASLMasqueradeAuthenticator method, configuring JavaMail's Socket Fetcher class to use "MailSSLSocketFactory".

    public static void getMailboxInfo(String mail, String mailHost)
            throws javax.mail.NoSuchProviderException, MessagingException, IOException, GeneralSecurityException {
        Config conf = nsit.Config.getInstance();
        String mpUser = "";
        String mpPassword = "";
        // setup mail server
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);

        // set system properties
        Properties mailProps = System.getProperties();
        mailProps.put("mail.imaps.ssl.socketFactory", sf);
        mailProps.put("mail.store.protocol", "imaps");
        mailProps.put("mail.imaps.host", mailHost);
        mailProps.put("mail.imaps.port", "993");

        // get session
        //Session session = Session.getDefaultInstance(mailProps);
        mailProps.setProperty("mail.imaps.sasl.authorizationid", mail);
        Session session = Session.getInstance(mailProps, new SASLMasqueradeAuthenticator(mpUser, mpPassword));
        session.setDebug(false);
        Store srcStore;
        srcStore = session.getStore();
        srcStore.connect();
        Folder src = srcStore.getDefaultFolder();
        //log.info("src.getName() " + src.getName());
        //log.info("src.getType() " + src.getType());
        //log.info("src.HOLDS_FOLDERS " + src.HOLDS_FOLDERS);

        if ((src.getType() & Folder.HOLDS_FOLDERS) != 0) {
            Folder[] subfolders = src.list();
            log.info("subfolders.length " + subfolders.length);
            for (int i = 0; i < subfolders.length; i++) {
                long msgs_size = 0;

                if (subfolders[i].getMessageCount() != 0) {
                    log.info("subfolders[i].getMessageCount() " + subfolders[i].getMessageCount());
                    subfolders[i].open(Folder.READ_ONLY);
                    Message[] messages = subfolders[i].getMessages();

                    for (int x = 0; x < messages.length; x++) {
                        //log.info("msg_size " + messages[i].getSize() + " bytes long.");
                        if (messages[i].getSize() != -1) {
                            msgs_size += messages[i].getSize();
                        }
                    }
                    log.info("msgs_size " + (msgs_size));
                    log.info("msgs_size " + (msgs_size / (1024L * 1024L)));

                    subfolders[i].close(false);         
            }
        } else {
            System.out.println("Not default folder");
        }
    }

    private static class SASLMasqueradeAuthenticator extends Authenticator {

        String authcid, authcpass;

        public SASLMasqueradeAuthenticator(String adminusername, String adminpassword) {
            authcid = adminusername;
            authcpass = adminpassword;
        }

        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(authcid, authcpass);
        }
    }