>> But I don't think it's clear that doing so would change anything at >> the recipients MX. As a concrete example, if two subscribers to a >> mailing list send mail to the list, one DKIM signed and one not, >> and the list then signs each message and sends it to the recipient, >> is there any reason that the recipients MX would treat those two >> messages differently?
>Yes. I still don't get it. The sorting rules I use on mailing lists are based on the list's identity using List-ID: headers or subject tags, not the individual sender. People will, I hope, correct me if I'm wrong, but I'm pretty sure that's typical of existing practice. It's possible to add all sorts of extra stuff to messages to pass through all sorts of complex assertions, but my list sorting works perfectly well now. What problem for the list recipient are we solving with this proposed extra mechanism? To address one possibility, none of the lists I'm on have significant problems with bad guys sneaking messages onto the lists by pretending to meet the criteria for posting messages to the list. Back in the Krazy Kevin era, 15 years ago, that was a problem but list owners and managers have dealt with it quite successfully. If the claim is that it'll become a problem again, I think it's fair to ask why, since list owners and managers have dealt with it in the past, they wouldn't continue to do so. R's, John _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
