Free DMARC Checker & Lookup
Check your domain’s DMARC setup and ensure email authentication.
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Using DMARC to Increase Email Deliverability
Learn how to authenticate your domain with SPF, DKIM, and DMARC setup tips.
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The Complete Email Deliverability Guide
Learn the factors that affect deliverability and how you can build strong sender reputation.
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Prevent Phishing Attacks
Protect your email list from phishing with tips on spotting scams, authentication, and prevention.
Read moreFAQs
Got questions? Start here. We’ve covered the essentials.
What is DMARC?
DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that helps protect your domain from spoofing and phishing. It works alongside SPF and DKIM to tell email providers how to handle messages that fail authentication and gives you reports so you can monitor and improve your email security.
What will a DMARC checker help me with?
A DMARC checker analyzes your domain’s DMARC record to verify it’s set up correctly. It shows your current policy (none, quarantine, or reject), and provides suggestions to strengthen email authentication and improve deliverability.
What should I do after I get my analysis?
Use the tool’s recommendations to update your DNS records. For example, add missing tags (ruf, sp, pct) or adjust your policy for stronger protection. Your email provider or IT team can help with the changes.
How can I improve my email deliverability rates?
To improve deliverability, authenticate your domain with SPF, DKIM, and DMARC, clean your email list regularly to remove inactive or invalid contacts, avoid spammy content or subject lines, and send consistently to engaged audiences. Monitor performance and sender reputation to spot issues early.
What does the “p=” value mean in my DMARC record?
The p= tag defines how mailbox providers should handle emails that fail SPF or DKIM checks. p=none: Monitor only; no action is taken. p=quarantine: Send suspicious emails to spam or junk folders. p=reject: Block unauthenticated emails from being delivered.
What is the policy percentage in DMARC?
The policy percentage (pct) tells mailbox providers how much of your email traffic the DMARC policy (p=none, quarantine, or reject) applies to. It’s mainly used to gradually roll out stricter policies without risking sudden deliverability issues.
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