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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I understand the need to reject CAA lookups if there is DNSSEC on the zone and if you run into timeout/SERVFAIL/etc errors at any level in the RFC 6844 processing (www.example.com or example.com). Hopefully everyone has interpreted look
up failure and DNSSEC this way. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">NSEC/NSEC3 records are returned only alongside NXDOMAIN responses for a signed zone – they provide authenticated denial of existence, essentially a “signed NXDOMAIN” response. Is this considered a failure or not? I think
this should not preclude issuance to that domain, but wanted to get consensus. <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Doug</span><o:p></o:p></p>
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