[dmarc-discuss] A bit quiet?

John Levine johnl at taugh.com
Fri Oct 23 17:37:06 PDT 2015

>From a DMARC perspective, if you know the sender is trustworthy, you do a local override.  ARC doesn't
>seem to be needed for that.

I have many of the same questions you do, but it is my impression that
a surprising number of lists behave fine for a long time, then some
bad guy starts pumping spam through it by impersonating one of the

ARC should be helpful in that perhaps non-exotic situation.


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