DMARC Record Builder

Visual builder for _dmarc TXT records. Configure policies, reporting, and alignment options.

Common Configurations

Policy Settings

Policy (p)

Action for messages failing DMARC

Subdomain Policy (sp)

Optional: separate policy for subdomains

Percentage (pct)

% of messages to apply policy to (1-100)

Report Interval (ri)

Reporting

Aggregate Reports (rua)

Email address(es) to receive aggregate XML reports. Separate multiple with commas.

Forensic Reports (ruf)

Email for individual failure reports. Note: many providers do not send forensic reports.

Failure Reporting (fo)

Alignment

DKIM Alignment (adkim)

Strict requires exact domain match

SPF Alignment (aspf)

Generated DMARC Record

DNS Name: _dmarc.yourdomain.com (TXT record)

About DMARC

DMARC (Domain-based Message Authentication, Reporting, and Conformance) builds on SPF and DKIM to give domain owners control over what happens to unauthenticated email.

Deployment path: Start with p=none to monitor, then move to quarantine, then reject once you confirm legitimate mail passes.

Reports: Aggregate (rua) reports show who is sending email using your domain. Forensic (ruf) reports provide details on individual failures.