Hello! I am an admin of the https://lists.wikimedia.org/postorius/lists/wikipedia-en-editfilters.lists.wikimedia.org/ mailing list. Starting some months ago, we get spam more or less on a daily basis. We have all messages automatically held for approval, so our readers aren't seeing the spam, rather myself and the other admin are burdened with logging in and rejecting the emails every day.

Is there any advice on how to prevent this from happening? I am aware some lists have moved to Google Groups. Would that help, you think? If so, how might I go about migrating my mailing list to it? We have long banned the email addresses, but it seems rarely we get spam from the same email twice, so this tactic has not been very effective.

Thanks for any help you can provide,

~ MusikAnimal