@Override
public Map<Long, MessageMetaData> expungeMarkedForDeletionInMailbox(Mailbox<Integer> mailbox, MessageRange set) throws MailboxException {
List<Message<Integer>> results = new ArrayList<Message<Integer>>();
final long from = set.getUidFrom();
final long to = set.getUidTo();
final Type type = set.getType();
switch (type) {
default:
case ALL:
results = findMessagesInMailbox(mailbox, MaildirMessageName.FILTER_DELETED_MESSAGES, -1);
break;