SPF RR type
marka at isc.org
Thu Jun 5 23:45:56 UTC 2014
In message <20140605230244.5929.qmail at joyce.lan>, "John Levine" writes:
> In article <mailman.348.1401978387.26362.bind-users at lists.isc.org> you write:
> >Are SPF RR types finally dead or not? I've read through rfc7208 it appears that they are:
> They're dead as in nobody looks at them other than legacy software
> that hasn't been updated. The SPF record was a screwup from beginning
> to end. By the time 4408 came out, there was already a lot of running
> SPF software using the badly designed TXT record. The mail community
> never wanted the SPF record but it was added reluctantly to 4408 due
> to filibustering by the DNS crowd. There was never a plausible
> transition plan for publishing SPF records, and by the time 7208 came
> out it was clearly time to put type 99 out of its misery.*
> It's extremely unlikely that the RRTYPE will ever be reused, so you
> can publish them if you want, but don't expect anyone to pay attention
> to them. Perhaps they can be reused for steganography.
And there is no plan to transition from SPF back to TXT other than
the exact same plan as there was to transition from TXT to SPF.
i.e. publish a RFC and hope people follow it.
It takes years to do transitions like this. TXT to SPF was actually
ramping up but that is now water under the bridge.
> * - Mark doubtless feels differently.
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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