Murray, The use case that I'm trying to address is when a sender is sending to DMARC enabled receiving MTAs and also to non-DMARC enabled MTAs. My understanding is that SPF ~all and -all (as well as ADSP) are currently not stringently adhered to by receiving MTAs. Those directives may only end up being a weight in the grand scheme of things.
The use case is when the sender is in this co-existence mode and also wants to have a DMARC policy for MTAs that can handle it. This assumes that the final disposition of the message in DMARC processing is different that SPF (which is more heuristic based) On Fri, Jul 6, 2012 at 10:12 AM, Murray Kucherawy <[email protected]> wrote: > On 7/6/12 6:19 AM, "Chris Lamont Mankowski" <[email protected]> > wrote: > >>Does ADSP proessing, weight-based huristics, and -all *always* get >>overridden.. even when a DMARC record is discovered with a p=none? >> >>Does it matter what the value of pct is? >> >>To eliminate confusion, I think the following paragraph should be >>edited to read: >> >>Section 7, Policy Enforcement Considerations >> >> [Old] >> DMARC-compliant Mail Receivers MUST disregard any mail directive >> discovered as part of an authentication mechanism (e.g., ADSP, SPF) >> where a DMARC policy is also discovered. {R7} >> >> [Revised] >> DMARC-compliant Mail Receivers MUST disregard any mail directive >> discovered as part of an authentication mechanism (e.g., ADSP, SPF) >> where a DMARC policy is also discovered EXCEPT when "p=none" and >>"pct=" is >> missing or has any value. If the "p=" is equal to quarantine, reject, >>monitor, >> then only specified percentage of messages defined in "pct=" will have >>DMARC >> policy applied. (note that a missing pct= value implies 100%) {R7} >> >>Thoughts? > > I'm not sure about this. A "none" means the Domain Owner is making an > explicit statement that it wants no action to be taken. > > What's the particular use case you're trying to solve for here? > > -MSK > >> > > > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well terms > (http://www.dmarc.org/note_well.html) _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
