RFC 8659, "DNS Certification Authority Authorization (CAA) Resource Record", November 2019Source of RFC: lamps (sec)
Errata ID: 5934
Publication Format(s) : TEXT
Reported By: IIDA Yosiaki
Date Reported: 2019-12-12
Section 7 says:
It also allows hyphens in Property Tags.
It should say:
It also allows hyphens in tags of Property Value of issue and issuewild Property Tags.
Subsection 4.1 explicitly prohibits hyphens in Property Tags.
While obsoleted RFC 6844 did not allow hyphens in tags of Property Value of issue and issuewild Property Tags, new ABNF definition in subsection 4.2 allows them.