Er, so? If the tool to bundle up the needed bits for SPF-as-text and
SPF-as-binary are similarly trivial, why should we care if people who
want to use a feature of the Internet can't persuade their provider to
make a trivial change.
Because there's no point in checking records that don't exist. RFC
4408 has been out for six years, and people who run large mail systems
report that the number of type 99 records is basically zero. To
several significant digits, all type 99 queries are wasted traffic.
Soon, y'all will be saying we should give up on DNSSEC because so few
registrars support it in their web UIs.
Registrars will because they have to. The registries (or maybe ICANN)
will beat them up.
I'm looking forward to a couple of decades of the DNS crowd
complaining that there's no DNSSEC at zone cuts below TLDs, while
remaining impervious to the concept that it's because upgrading
provisioning to handle them is even harder than upgrades for simple
records like type 99.
R's,
John
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