Free DMARC Checker Test & analyze instantly.

A DMARC checker (also called a DMARC lookup tool, DMARC analyzer, or DMARC tester) is a free diagnostic tool that queries your domain's DNS records to verify the existence and validity of your DMARC configuration. It helps identify syntax errors or missing records that could lead to email deliverability issues.

Enter your domain in our DMARC tester above to validate your configuration. We check that your DMARC record exists, has valid syntax, and is correctly published in DNS. For ongoing verification, set up DMARC reporting to receive daily aggregate reports from email providers like Gmail and Microsoft.

Simply enter your domain name in the input field above. Our tool will instantly analyze your DNS and provide a detailed report on your DMARC, SPF, and BIMI status.

DMARC (Domain-based Message Authentication, Reporting, and Conformance) prevents bad actors from spoofing your domain. It protects your brand reputation and helps legitimate emails reach inboxes at Gmail, Yahoo, and Outlook.

It depends on whether you need your emails to reach people. Since February 2024, Gmail and Yahoo require DMARC for bulk senders. Without it, your emails may land in spam or be rejected entirely. If you send transactional or marketing emails, DMARC is no longer optional.

For domains that should never send email (parked domains, redirects, brand protection), publish a "null" SPF record (v=spf1 -all) and a strict DMARC policy (v=DMARC1; p=reject). This tells receivers to reject any email claiming to come from your domain.