[OT] Re: configuration error in lists.isc.org
Casey Deccio
casey at deccio.net
Fri Aug 7 17:28:17 UTC 2015
On Fri, Aug 7, 2015 at 11:23 AM, Heiko Richter <email at heikorichter.name>
wrote:
> Correction:
> - ------------
> All implementations of SPF always check 2 addresses:
> - Envelope-From address
> - From address
>
> SPF will fail whenever the client is not authorized to send for either
> the Envelope-From address or the From address. So while the list
> server changes the envelope from address, SPF will still fail as the
> client is not authorized for the From address.
I think you're confusing SPF and DMARC. DMARC uses the results of SPF,
which authenticates the "Mail From" domain, aligning that domain with that
of the "From" header.
Casey
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