For anyone who runs a mailing-list manager, There's a new message header to filter out from inbound messages, "Require-Recipient-Valid-Since:".
Specification: https://datatracker.ietf.org/doc/draft-ietf-appsawg-rrvs-header-field/?include_text=1 The header is already supported by Yahoo!, apparently; I understand the use of the header and the security concerns section of the draft addresses the problems which were immediately apparent, and despite my initial negative reaction I think I agree with the new header's introduction (and can see it being something which mailing-lists use for themselves). But you probably don't want posters to your lists being able to block selected subscribers from receiving their mail and perhaps get those victims blacklisted by your list software for bouncing: the messages should only be rejected if your MLM is the software adding the header and checking for the new rejection reason. So: filter the message from inbound messages to the MLM! Regards, -Phil _______________________________________________ Tech mailing list Tech@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
