[MM3-users] easy way to delete old mails in hyperkitty?

Hi!

is thjere a easy way to delete old mails in hyperkitty?

e.g. with a list and checkmarks, or via a cli command?

We got several mailinglists and we did import them from mailman2.x into mailman 3.2. Now it is time to remove old posts before 2016. But I do not see a easy way to remove old posts in one go, just the "remove thread" button in each mail view.

thank you, Lars