> On May 25, 2017, at 5:23 AM, li...@lazygranch.com wrote:
>
> Given the email issues in recent political campaigns, I'm seeing a
> number of articles suggesting setting up DMARC for quarantine.
DMARC is an abuse of the IETF process (informational RFC) to promote
and deploy a deeply flawed specification. It should never have been
deployed outside domains that only do "transactional email" subject
to phishing like paypal.com. Yahoo deployed it despite the resulting
breakage to everyone else, because it lowered their abuse desk costs.
I neither deploy nor check DMARC. It is a broken design.
--
Viktor.
