}
private void respond(Responder responder, final MailboxQuery expression, final String mailboxName, final boolean originalSubscription, final Collection<String> mailboxes, final Collection<String> mailboxResponses, final char delimiter) {
if (expression.isExpressionMatch(mailboxName)) {
if (!mailboxResponses.contains(mailboxName)) {
final LSubResponse response = new LSubResponse(mailboxName, !originalSubscription, delimiter);
responder.respond(response);
mailboxResponses.add(mailboxName);
}
} else {
final int lastDelimiter = mailboxName.lastIndexOf(delimiter);