Free DMARC Checker
DMARC Lookup & Validation Tool
Run a live DMARC check to validate your policy, syntax, and reporting setup and detect issues before they affect your email security.
Enter your domain to run a full DMARC record lookup and get a plain-language breakdown of what's working and what needs fixing.
About Free DMARC Checker by DMARKOFF
A DMARC record is what tells receiving mail servers what to do with emails that fail SPF or DKIM authentication, including whether to deliver, quarantine, or reject them. Without it, anyone can send email that appears to come from your domain.
Unlike a basic DMARC lookup, the Free DMARC Checker from DMARKOFF performs a live DNS lookup on your domain in seconds, checks your policy and enforcement level, parses every tag in your record, and provides more than just a pass/fail result. You’ll see a clear explanation of every tag in your record and how to fix issues.
What DMARC Checker Detects
✓ Confirms your domain exists and has valid name servers
✓ Checks whether a DMARC record exists for your domain
✓ Verifies the record is published at the correct location (_dmarc.yourdomain.com)
✓ Confirms there's only one DMARC record (multiple records can break DMARC entirely)
✓ Checks for conflicting or unexpected TXT records at _dmarc
✓ Validates your aggregate report (RUA) addresses, including authorization for third-party report destinations
✓ Confirms your record syntax is well-formed
✓ Checks your enforcement level (none, quarantine, or reject)
✓ Verifies your reporting address counts are within safe limits
Every check above includes a plain-language explanation of what it means and, where applicable, the specific fix to apply.
Why Choose Free DMARC Checker
Free to use, no signup – check your DMARC record without creating an account.
Compare multiple domains – your recent checks are saved during your session for quick side-by-side comparison.
Instant results – your DMARC lookup takes only a few seconds.
FAQ
A DMARC record is a TXT record published in your domain's DNS that tells receiving mail servers how to handle emails that fail SPF or DKIM authentication. It works alongside SPF and DKIM to block spoofed messages, and it provides reporting data showing who is sending email using your domain.
You can check your DMARC record in seconds with the free DMARC Checker tool from DMARKOFF. Just enter your domain, and our tool will look up your DNS record, validate its syntax and structure, and explain each tag so you know exactly what your current policy is doing and recommend fixes for any issues it finds.
A DMARC check confirms your domain has valid name servers, verifies a DMARC record exists and is published at the correct location, checks that only one record is present, validates your reporting addresses, and confirms your enforcement policy (none, quarantine, or reject). It also detects syntax errors, duplicate records, and other configuration problems that may prevent DMARC from working correctly.
Yes, if you send email from a domain, whether for marketing, transactional messages, or internal use. Without DMARC, your domain has no defense against spoofing, and major mailbox providers like Google, Microsoft, and Yahoo require DMARC for bulk senders.
A DMARC lookup is a DNS query that retrieves the DMARC TXT record published at _dmarc.yourdomain.com. Our free DMARC checker runs this lookup, then validates the record's syntax, policy, and reporting configuration against the latest standards.
The checker identifies exactly what's wrong, for example, a missing record or invalid syntax, and shows the specific fix, like the exact DMARC record to publish. Update the TXT record in your DNS host with the suggested fix, then rerun the check to confirm it now passes.
Yes. Every DMARC check is saved during your current session, allowing you to compare the results across multiple domains on a single page.
Check your DMARC record any time you make a change to your email setup, such as adding a new sending tool, switching email providers, or updating SPF/DKIM. Beyond that, a periodic check (monthly or after any DNS changes) helps you catch misconfigurations before they affect deliverability. If you want ongoing visibility without manual checks, DMARKOFF helps you monitor your setup continuously and alerts you the moment something changes.