There are basically two kinds of setups for mailing lists managed using Mailman, regarding posts from non-members :
- Accept posts from non-members. This lead to quite a lot of spam on the list, but also to no work for the moderators.
- Put posts from non-members in a moderation queue. This result in a spam-free mailing list, but also in a lot of work for moderators, and in posts delayed for days.
It would be great if Mailman could ask the sender for confirmation (either email-based or web-based) before accepting the mail or putting it in the moderation queue. This would greatly reduce the amount of spam on the list or in the moderation queue.