Reviewer: Peter van Dijk Review result: Ready with Nits Thank you for processing my previous comments. The document is in great shape. I have one nit: One of the new sections based on my earlier comments is "2.7. FORMERR Responses". It currently says > Upon receipt of a FORMERR response, recursive clients generally retry their queries without EDNS(0). For most resolver implementations (Knot, Unbound, PowerDNS, but not BIND), this is only true if the FORMERR response does not contain EDNS(0)/OPT. There are auths out there that send FORMERR+OPT responses, and they are not getting non-EDNS0 fallback behaviour from such resolvers. > Thus, resolution failures from FORMERR responses are rare. This, meanwhile, remains true. When they happen, they tend to be persistent, and noticed, leading to fixes. I don't have a strong suggestion for rewording. Perhaps replace "recursive clients generally" with "some recursive clients might"? I can also live with the current text, but I did want to point out this nuance. -- last-call mailing list last-call@xxxxxxxx https://www.ietf.org/mailman/listinfo/last-call