Wietse Venema wrote:
Frank Ellermann:
<robert(_at_)barclayfamily(_dot_)com> wrote:
Would it be better if "error" were a specifically defined
result in addition to "unknown" / "all" / "discardable"?
The fourth bullet in chapter 3.2 "ASP results" offers "the
domain does not exist" after "unknown"/"all"/"discardable".
I-D.kucherawy-sender-auth-header chapter 2.4.2 "ASP results"
lists this as "nxdomain". IMHO good enough, or do you have
something else in mind ? Let's s/ASP/ADSP/g + WGLC, s.v.p.
Sounds reasonable. I expect many will implement NXDOMAIN as a
fourth ADSP lookup result in some way or another.
This explains more easily than my earlier claim (an NXDOMAIN result
cannot correspond with one of "unknown" / "all" / "discardable").
Dave Crocker:
Sorry for being confused, but I now can't tell whether the focus
is on an NXDomain for the _adsp.<domain> string that is queried
for ADSP, or the <domain> name to which it is associated.
I am talking about DNS lookup #2 in ADSP: the author domain.
_adsp.domainkey.example.com IN TXT (NXDOMAIN -> "unknown").
example.com A IN (NXDOMAIN -> "nxdomain").
By including "nxdomain" as a verifier result we can eliminate
a confusion and frustration.
Wietse
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