How to Setup DMARC for your domain

Last Modified

Mon Jan 28 20:10 GMT 2019

Description

  • Are there instructions on how to setup DMARC for a domain?

Environment

  • Mail Assure

Solution

  • DMARC is defined in RFC 7489
  • Ensure your domain has both a valid SPF record and a DKIM selector in use. See:
  • Create a DMARC policy record DNS record:
    • This is a TXT record with key _dmarc.
    • An example DMARC record: v=DMARC1;p=reject;pct=75;rua=mailto:postmaster@test.com
  • For full DMARC syntax, see DMARC.org.