Email, What is DMARC

What do I need to know about DMARC?

Domain-based Message Authentication, Reporting and Conformance - verifies an email actually came from the domain it claims to be sent from. It verifies two things:

SPF (Sender Policy Framework) - verifies the server sending the email is authorized to send email for that domain.
DKIM signature - verifies the content of the message was not manipulated during transit using encryption key verification.

If you are forwarding your email, you will lose email if a domain has a DMARC=reject policy. In addition to the Federal Agencies, many large corporations also implement a dmarc=reject policy.

Some examples include PayPal, Linked-In, Apple, Amazon, etc.

A full list can be found at: https://dmarc.org/who-is-using-dmarc/

Keywords	Domain-based Message Authentication, spf, dkim Suggest keywords	Doc ID	86784
Owner	Email Relays E.	Group	University of Illinois Technology Services
Created	2018-10-16 09:28:16	Updated	2024-03-12 13:06:51
Sites	University of Illinois Technology Services
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