It seems that creating a list, say post-only, and putting '@post-only' in accept_these_nonmembers of those lists for which you want this enabled satisfies this request. This has been available since Mailman 2.1.10. See <https://bugs.launchpad.net/mailman/+bug/558204>.
It seems that creating a list, say post-only, and putting '@post-only' in accept_ these_nonmember s of those lists for which you want this enabled satisfies this request. This has been available since Mailman 2.1.10. See <https:/ /bugs.launchpad .net/mailman/ +bug/558204>.