I vote for defaulting to 'leave on server' and just print a brief message ('leaving messages on server') once when you first download messages from a spool - maybe with a hint about how to change the behavior. That's fairly simple to implement and is probably most friendly to new users.
I vote for defaulting to 'leave on server' and just print a brief message ('leaving messages on server') once when you first download messages from a spool - maybe with a hint about how to change the behavior. That's fairly simple to implement and is probably most friendly to new users.