3. verifiers that see q=<newRR> SHOULD query for that RR but MAY query for
the TXT.
Single query, no matter what the situation. No failures, so no fallbacks.
Right. I conflated the need to support both types by the sender with
the need for a fallback query. So the fallback is eliminated, but the
sender may need to support both record types forever.
The next question is whether this is a good strategy for RR adoption
or not and whether that should be considered.
Mark.
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