https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6490

--- Comment #11 from [email protected] 2011-05-03 21:47:01 
UTC ---
> Lots and lots of people are using TXT RRs for SPF. Why should they change
> when it works?

Because loading of the TXT-RR for SPF data was a TEMPORARY measure (per RFC
4408) until SPF received its own RR-type, which happened 5 years ago.  Five
years is too long to be "temporary."  At some point, SPF support for TXT-RRs
will be removed, and they will have nothing working.

As far as "upgrade or die" arguments go, have you noticed that some of the more
popular web sites are now denying access to people using MSIE 6 on the grounds
that it's obsolete software?  However, it's NOT the same with SPF, as RFC 4408
itself indicated the "temporary" status for TXT-RR from the very beginning. 
The only thing the RFC didn't include is an actual schedule.

However, all of that doesn't matter to this patch, as the Mail::SPF module
deals with TXT-RR support (as well as SPF-RR support) and we need not do
anything special in SA.  What matters is the additional condition this patch
returns for SA evaluation.


Lastly, the errata to RFC 5451 changed the "hardfail" result to "fail" (for RFC
4408 consistency)- but I wrote the patch to handle either.

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