[openstack-community] [administrivia] Spam reaching the mailing list

Apologies, a spammer created an account and sent two messages to this list earlier today, replying to a very old thread from 2016. I've blocked them and cleaned their spam out of the archive, but if we see continued incidence of the same we may need to change the posting policy for new subscribers to initially held until a moderator confirms they're posting legitimate messages.