NODATA_NOT_NXDOMAIN

warning

The name exists but has no record of the type we need. Something else is configured at this name.

Working today, and one change away from not working.

How we know

nodata.test
A name with an A record but no TXT. NODATA is RCODE 0 with a SOA in authority, not NXDOMAIN, and the fixes differ.
negcache-high.test
An address and no TXT, so a TXT query is NODATA rather than NXDOMAIN and the answer carries the SOA that says how long that will be remembered. An hour is the interval that generates support tickets: long enough to be disbelieved after a correct edit, short enough that nobody suspects caching. negcache-low.test at 60 seconds is the counterpart that must produce nothing.