DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol that uses SPF and DKIM results to tell receiving mail servers how to handle emails that fail authentication.

What are the three DMARC policies?

p=none means do nothing with failed emails, just report. p=quarantine sends failed emails to spam/junk folders. p=reject refuses to deliver failed emails entirely. 'reject' is the strongest protection against spoofing.

Why is DMARC important?

Without DMARC, anyone can send emails that appear to come from your domain. DMARC prevents phishing attacks that impersonate your brand, protects your domain reputation, and helps you monitor email activity through aggregate reports.

What is the rua tag used for?

The rua (reporting URI for aggregate) tag specifies email addresses where receiving servers send daily aggregate reports showing which IPs are sending email using your domain. This helps you monitor legitimate and illegitimate senders.

What does p=none mean?

p=none means DMARC is in monitoring mode — no action is taken on failing email, but reports are sent to the addresses specified in rua=. This is the recommended starting point before enforcing stricter policies.

Do I need DMARC if I already have SPF and DKIM?

Yes. SPF and DKIM authenticate email independently, but without DMARC, there is no policy for what to do when they fail. DMARC also enables reporting so you can see who is sending email from your domain.

DMARC Checker — Check DMARC Record for Any Domain Free

Check the DMARC record for any domain. Validate policy, coverage percentage, and reporting configuration. Free, instant.

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DMARC is checked at _dmarc.[domain] in DNS. It works with SPF and DKIM to prevent email spoofing and phishing.

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What is DMARC Checker — Check and Validate DMARC Record Free?

A DMARC (Domain-based Message Authentication, Reporting, and Conformance) checker retrieves and validates the DMARC TXT record at _dmarc.yourdomain.com. DMARC builds on SPF and DKIM to define a policy for what receiving mail servers should do with email that fails authentication — none (monitor only), quarantine (spam folder), or reject (block entirely). It also enables reporting of authentication failures.

How to Use DMARC Checker — Check and Validate DMARC Record Free

1Enter the domain name you want to check.
2Click Check DMARC to retrieve the record.
3Review the policy (p=none, p=quarantine, or p=reject).
4Check the coverage percentage and reporting configuration.
5Upgrade to p=reject once you're confident in your SPF/DKIM setup.

Key Features

Full DMARC record content display
Policy detection (none/quarantine/reject)
Subdomain policy (sp=) detection
Aggregate (rua) and forensic (ruf) reporting addresses
Percentage (pct) coverage display

Benefits

Verify DMARC is protecting your domain from spoofing
Confirm reporting addresses are correctly configured
Check policy before tightening from quarantine to reject
Diagnose email deliverability issues caused by DMARC failures

Why Use Irreva for DMARC Checker — Check and Validate DMARC Record Free?

Verify DMARC is protecting your domain from spoofing

Confirm reporting addresses are correctly configured

Check policy before tightening from quarantine to reject

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No account, no sign-up, no subscription — free forever.

Works on any device: desktop, tablet, or mobile.

Frequently Asked Questions

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