DMARC Resource Kit

Resources for Referencing and Sharing DMARC


DMARC Overview Video


How DMARC Works

Everything You Need to Know

What does DMARC stand for? What does it do? How does it work? Download the overview document to find out everything you need to know about DMARC, then learn how to set it up.


Overview Document




Email Signature Banner

Add this 530 x 120 jpeg image to your own email signature to show your support for the GCA’s DMARC solution.


What is DMARC?

DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It’s like an identity check for your organization’s domain name. A DMARC policy allows a sender to indicate that their messages are protected and tells a receiver what to do if one of the authentication methods passes or fails – either send the message or reject the message to junk. DMARC also helps prevent the creation of fraudulent email accounts on your organization’s website domain.


Infographic: How DMARC Works

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