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What happens to an email that fails DMARC?

When an email fails DMARC, your settings determine what happens to the email.

Your DMARC failure actions

Your DMARC record can specify the email address to send these reports to and what failing conditions trigger a report.

DMARC directive Meaning
p=reject What to do when emails from @samplecorp.com fail DMARC. In this case, do not deliver the email to the recipient.
sp=reject What to do when emails from a subdomain of @samplecorp.com fail DMARC. In this case,

For both p and sp directives, the following values are supported:

  • reject: Reject the email
  • quarantine: Quarantine the email
  • none: Don't enforce any actions based on the DMARC failure