I’ve been noticing for some time now that now and then, someone registers several fake accounts on my Openfire server. I was deleting those accounts on a regular basis. After a few months, I’ve just logged-in to the servers admin console again and checked out the list of registered users. Now there are more than 400 accounts i’d have to delete manually (see attachment).
Is there any option to mass-prune the accounts (i.e. delete any account that hasn’t been used for more than x days)? What can I do to prevent others to register account after account after account?