> On Sep 28, 2020, at 7:09 PM, Wietse Venema <wie...@porcupine.org> wrote: > > We could log the DNSSEC status only if DNS was 'secure', like we > log the connection reuse counter only when a connection was used > more than once.
Makes sense I think, and would probably do the job. The key question is what to signal, there are three relevant bits to log (similar to delays=a/b/c/d perhaps): * Was the MX RRset signed * Was the MX host address RRset signed * Were DANE TLSA RRs found for the MX host. If all are false, log nothing, if at least one is true, then log the triple as some subset of dnssec=mx,addr,tlsa How does that sound? -- Viktor.