Some quick mailman3 questions

--Just wanted to check that there is still no way for mailman3 to automatically purge archived emails after a set amount of time? it looks like you have to export the database, purge the messages, then re-import, is this still the only/best way to purge old archived messages?

--I noticed on the list info page you have metrics, which is straightforward except for "volume" My volume number is not increasing? What is that counting exactly?

--Is there any way to auto discard held messages after x amount of time? I assume not but had a user ask if that was an option.

Thanks for the assistance in advance.