I do get your point. I've got the same problem with the CheckUser-l mailing list. Even though we removed the option to subscribe on our general information page[1] and we automatically reject emails from non-members, we still get dozens of spam via the -owner address. And I have no idea what we can do about it. There is no such option to block spam to -owner. Trijnstel [1] https://lists.wikimedia.org/mailman/listinfo/checkuser-l ________________________________ Van: Listadmins &lt;listadmins-bounces(a)lists.wikimedia.org&gt; namens Maarten Dammers &lt;maarten(a)mdammers.nl&gt; Verzonden: vrijdag 5 mei 2017 10:54:12 Aan: listadmins(a)lists.wikimedia.org Onderwerp: Re: [List admins] Removed myself as owner of the pywikibot* mailman lists You all seem to miss the point. The junk that got through was directed at the -owner addresses like pywikibot-owner@lists.wikimedia.org<mailto:pywikibot-owner@lists.wikimedia.org> not at the actual lists. Maarten