DMARC Whiteboard Session

Agari founder and CEO Patrick R. Peterson walks you through an explanation of DMARC. Patrick is one of the authors of the DMARC standard.

[simonselvin]

Thanks for the DMARC Session, it was Informative.
Just a couple of questions:
when I publish dmarc record it's for my domain and it's just a recommendation (not enforcement) of what to do with emails sent from my domain to the receiver. Can the receiving domain override this setting and if yes how, is it through their DMARC policy, and will the same apply for all sending domains.
if I receive an email from the Xyz domain that has not set up a dmarc record but has SPF & DKIM records published or has none as their dmarc policy, will the receiving domain still checks for SPF and DKIM, DMARC and since the sending domain has not mentioned what to do with it, can I still quarantine or reject these email based on our DMARC policy?
Is the DMARC policy that we set only for receiving domains to accept and reject or is it also for us when we receive an email, it tells us what to do. What's the mechanism used to enforce these checks in the Email Infrastructure.

[gilsonvidal]

Interesting Insight to avoid spoofed email.