DMARC Fundamentals: Everything You Need to Know About Email Authentication Protocols

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Reading a DMARC record

DMARC Fundamentals: Everything You Need to Know About Email Authentication Protocols Defining a DMARC Policy Reading a DMARC record

A DMARC record notifies email recipients if a domain has been configured for DMARC and includes the domain owner’s policy. A DMARC record is enclosed in the tag and encloses subtags that provide information, such as:

  • The tag encloses the name of your domain
  • The tag contains information about relaxed (r) or strict (s) DKIM alignment
  • The tag contains information about relaxed (r) or strict (s) SPF alignment.
  • The tag indicates the requested policy (none, quarantine, or reject) when an email fails DMARC authentication
  • The tag is for subdomain policy used to indicate a separate DMARC record for the subdomain.
  • The tag is used to specify the percentage of emails to be checked for authentication in an email stream but is optional.
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