Hosted DMARC now supports RFC 9989 (DMARCbis)

Hosted DMARC now supports the new DMARC record tags introduced in RFC 9989, the updated DMARC specification published last month (formerly known as DMARCbis).

You can now configure these tags from the hosted DMARC settings:

• Non-existent subdomain policy (np), which defines the policy for subdomains that don’t exist.
• Testing mode (t), which requests that receivers don’t apply the published policy while testing.
• Public suffix domain (psd), which helps receivers determine the Organizational Domain during DMARC policy discovery and alignment checks.

The legacy pct and ri tags, which RFC 9989 reclassified as historic, remain available for backward compatibility.

Not all mail receivers support RFC 9989 yet, so the new tags may not always have an effect.

Learn more about the available settings in Hosted DMARC, or read about DMARCwise support for RFC 9989–9991 in our documentation page.