Subject: Re: [spfbis] Bug - Conflict between 2.5.4 and 2.3 [was SMTP level rejection]

From: Arthur Thisell <[email-masked]>
Date: Tue, 21 Aug 2012 06:05:04 -0700 (PDT)

> Agreed.  In any case, 4408 was very careful not to prescribe what receivers 
> should do with "fail" mail.  Changing that in 4408bis would be a 
> substantiative change that's out of scope of the charter even if there was 
> consensus for it.

Indeed, the mantra on the spf lists was SPF is a Sender Policy Framework, not a Receiver Policy Framework.   RFC 4408 was very careful not to prescribe what receivers do because there are no protocol police to enforce what receivers do.  Any implication that receivers had to take some particular policy would be deceptive.