On Jan 20, 2015, at 2:14 PM, Franck Martin <fra...@peachymango.org> wrote:
> >> But on the off-chance that it's not impossible to clarify >> this now, and assuming that my growing suspicion that HELO is >> ignored is correct, then I would propose: >> > > Your confusion on HELO is may be related to the fact that the HELO string is > only used when the MAIL-FROM: is empty? > > There is some text here: > http://trac.tools.ietf.org/html/rfc7208#section-10.1.3 > > The HELO string is not evaluated all the time, it is more like a fall back. 7208 actually recommends that the HELO string be evaluated every time. http://trac.tools.ietf.org/html/rfc7208#section-2.3 "2.3. The "HELO" Identity It is RECOMMENDED that SPF verifiers not only check the "MAIL FROM" identity but also separately check the "HELO" identity by applying the check_host() function (Section 4) to the "HELO" identity as the <sender>. Checking "HELO" promotes consistency of results and can reduce DNS resource usage." laura -- Laura Atkins Word to the Wise "The Deliverability Experts!" Direct: 650 678-3454 Fax: 650 249-1909 @wise_laura Delivery blog: <http://blog.wordtothewise.com/> _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
