DMARC Builder & Checker

Build and validate DMARC policies for email authentication

Domain Name

Policy (p=)

Subdomain Policy (sp=)

Percentage (pct=)

% of messages to apply policy to. Start low for gradual rollout.

Report Interval (ri=)

Aggregate Reports (rua=)

Receive daily summary reports of DMARC results.

Forensic Reports (ruf=)

Receive detailed reports for each failure. Not all providers support this.

SPF Alignment (aspf=)

DKIM Alignment (adkim=)

Generated DMARC Record

v=DMARC1; p=none

Add as a TXT record for _dmarc.yourdomain.com

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