On 11/23/19 12:30 PM, Ralph Seichter wrote: > * Roland Köbler: > >> Or in short: DMARC intentionally breaks every mailinglist and every >> mail-forwarding. > I doubt that it is broken "intentionally". ;-) > > "[Ich habe] gefunden, daß Mißverständnisse und Trägheit vielleicht > mehr Irrungen in der Welt machen als List und Bosheit. Wenigstens sind > die beiden letzteren gewiß seltener." (J.W.v.Goethe, Die Leiden des > jungen Werther, 1771) > > -Ralph > They likely didn't go in with the thought that they needed something that broke mailing lists, (and full DMARC doesn't break simple forwarding, as thd DKIM signature should survive still matching), but in the development of it, they did realize that DMARC would break emails from many standardly run mailing lists. Initially this was ok, as the initial types of messages that they were trying to protect wouldn't go though such systems. There were attempts to figure out how to improve the system so that it would work more generally and be usable for the wider usage, but that didn't pan out.
It was only the adoption of the system by Yahoo and AOL (without informing their users of the consequences), and then them telling mailing list operators that the mailing lists had to deal with the damage, as they needed to adopt this for 'reasons'. -- Richard Damon
