[Mailman-Users] cause of bounces
gtaylor at tnetconsulting.net
Tue Oct 17 18:28:01 EDT 2017
On 10/17/2017 04:15 PM, Lindsay Haisley wrote:
> Just as an aside here, my understanding is that validation of an email
> by DMARC requires ONE of two things: EITHER the DKIM signature in the
> email must validate, OR the domain of the From body header must resolve
> to the IP address of the Sender system (list server or mail reflector).
> Is this correct? Where's a reference on this?
That is a per domain setting left up to the DMARC publisher.
At least my understanding is that you can specify any of the following
conditions to cause DMARC to pass / fail.
1) /Only/ SPF
2) /Only/ DKIM
3) SPF /or/ DKIM
4) SPF /and/ DKIM
Grant. . . .
unix || die
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