> On Jan 25, 2022, at 10:35 AM, John R Levine <jo...@taugh.com> wrote: > > Do we have any stats on how often real mail depends on sibling alignment? If > nobody actually uses it, the spec would be simpler if we could take it out.
Stats are tricky, but here are some senders using sibling alignment like From domain: samedaycity.FedEx.com DKIM domain: freight.FedEx.com SPF domain: nds.FedEx.com Most of these don’t do it for all mail, but account and billing related mail or customer support mail are particularly likely to use it FedEx, obviously Uber Intuit NextDoor outside the US Taco Bell McGill university Lots of healthcare billing using the Cedar platform Atlassian Alignable.com which tickles my sense of irony Cmdlr.com which sends mail for a variety of car dealerships These are cherry-picked from a few minutes of incoming mail. So in practice, turning it off would cause significant disruption. Elizabeth > > Regards, > John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY > Please consider the environment before reading this e-mail. https://jl.ly > > _______________________________________________ > dmarc mailing list > dmarc@ietf.org > https://www.ietf.org/mailman/listinfo/dmarc _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
