It appears that Todd Herr <todd.h...@valimail.com> said: >The reasons given were: > > 1. https://www.rfc-editor.org/rfc/rfc5863#section-4.1
I am reasonably sure it was referring to DNS crudware that wouldn't let you put an underscore in the name, or that limited TXT records to a single 255 byte string, not CNAMEs. > 2. https://datatracker.ietf.org/doc/html/rfc6376#section-7.5 I don't see that implying anything about CNAMEs. > 3. Neither RFC 7489 nor DMARCbis contain the phrase "CNAME", so if it's > not explicitly mentioned... I suggest we mark this "no change" and close it. There is a very short list of RRTYPEs where you're not allowed to use CNAMES, and TXT isn't on it. R's, John PS: If anyone cares, the list contains NS and MX. See RFC 2181, sec 10.3 _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
