[dmarc-discuss] On Inbound DMARC Support
johnl at taugh.com
Thu Jun 19 18:58:03 PDT 2014
> Same-domain phishing is highly effective, so anything that addresses it is a prudent
>control to deploy.
Yes, I believe it.
> Thus, inbound DMARC filtering is desirable for corporate infrastructure.
No, for this threat it's irrelevant.
Surely we don't have to explain why you don't need DMARC to implement
a policy about mail from your own domains on your own servers. You
just do it. Someone at Cisco told me they were doing inbound phish
filtering almost a decade ago with IIM, one of the predecessors to
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