Greetings all. We maintain approximately 1000 lists. I would guess most are inactive. It has been suggested that we clean these up via those showing zero subscribers for 6 months or those having no messages in the past 15 months. Also wanted is a list of all list owners to be emailed whether lists are needed. Not sure whether any of this is practical or can even be done. Any ideas/suggestions outside of manually going through each list is appreciated.