On Jul 17, 2023, at 22:50, Paul Vixie <paul=40redbarn....@dmarc.ietf.org> wrote: > > > >> Agreed, but that horse had already left the barn when we published the first >> SPF RFC 4408. > RFC 4408 was folly. TXT in a subdomain (RFC 5507 s3.2) would suit domain > verification well (wildcards aren't a factor) and would in no way be > precluded by the SPF design.
The IETF did make a mistake there for sure. > perhaps a sub-domain under ._wellknown.$apex, to match current style in the > w3c world. In general, DNS records have used just an underscore. As this space is still less automated and involves more humans and bad GUIs, i think it sticking to just an _ is better. (The web never had _ as a special/reserved character either unlike DNS) Eg see _openpgpkey, _smime, DANE records, etc. Paul > > -- > P Vixie > > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
