If the signature is not broken, then having DKIM pass is sufficient for a DMARC pass (per the spec). Whether Exchange evaluates it correctly or not is a different question :-)
--Kurt On Mon, Mar 9, 2020 at 1:33 PM Al Iverson via dmarc-discuss < dmarc-discuss@dmarc.org> wrote: > Dumb question time. In that scenario, if mail is forwarded with the > DKIM signature intact, would that be good enough to still pass DMARC? > Or will it fail because SPF now fails? > > Al > > On Mon, Mar 9, 2020 at 2:25 PM Ivan Kovachev via dmarc-discuss > <dmarc-discuss@dmarc.org> wrote: > > > > If only I could push them. > > > > On Mon, Mar 9, 2020, 18:32 Kurt Andersen <ku...@drkurt.com> wrote: > >> > >> This is not a topic for the DMARC protocol discussion list. You should > probably be directing the inquiry to your Exchange support channel - and > pushing Barracuda to implement ARC (RFC8617) too :-) > >> > >> Cheers, > >> Kurt Andersen > >> > >> On Mon, Mar 9, 2020 at 11:20 AM Ivan Kovachev via dmarc-discuss < > dmarc-discuss@dmarc.org> wrote: > >>> > >>> Hello, It looks like Office 365 with a gateway in front such as > Barracuda or another gateway, still does DMARC validation inbound, and > quarantines any emails that fail DMARC validation. > >>> > >>> Should this not be the case since the MX of the receiving domain is > that of the Barracuda or whatever other gateway is used? > >>> > >>> DMARC validation passes at Barracuda, but then Barracuda makes changes > to the email which invalidates DKIM/DMARC and Office 365 quarantines them, > even though the email initially passed DMARC and was not considered as SPAM > at all. > >>> > >>> How can DMARC validation be turned off or disabled at Office 365 for > the above scenario? > >>> > >>> > >>> > >>> _______________________________________________ > >>> dmarc-discuss mailing list > >>> dmarc-discuss@dmarc.org > >>> 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 > > dmarc-discuss@dmarc.org > > 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) > > > > -- > al iverson // wombatmail // chicago > dns tools are cool! https://xnnd.com > _______________________________________________ > dmarc-discuss mailing list > dmarc-discuss@dmarc.org > 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) >
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