Appendix C. Changes from RFC 7489

このページは RFC 9989 の該当節を要約し, DMARC tags, DNS names, ABNF, IANA values を保持します.

Appendix C summarizes changes from RFC 7489. Major changes include incorporating PSD DMARC behavior, replacing the PSL-based Organizational Domain method with DNS Tree Walk, revising tags, removing the pct tag, and updating IANA registries.