This tool checks your domain's email authentication DNS — SPF, DKIM and DMARC. Without these, anyone can spoof your domain, your emails land in spam, and scammers can impersonate your brand. It's one of the most overlooked and highest-impact fixes for deliverability.
What is Email DNS Checker (SPF, DKIM, DMARC)?
An email DNS checker verifies the records that make your email trustworthy and deliverable — SPF, DKIM, and DMARC. Missing or misconfigured, they send your campaigns straight to spam, no matter how good the content is.
How it works
SPF authorizes which servers can send email for your domain, DKIM cryptographically signs messages, and DMARC tells receivers what to do with mail that fails those checks. The tool reads these DNS records and flags problems.
How to use this tool
Enter your domain. The checker reports the status of your SPF, DKIM, and DMARC records, so you can fix authentication gaps that hurt deliverability.
Why it matters
Email providers increasingly require proper authentication — without it, even legitimate campaigns land in spam or get rejected outright. These three records are the foundation of every deliverability strategy, and this catches gaps fast.
Frequently asked questions
What are SPF, DKIM, and DMARC?
Three email authentication records: SPF lists allowed sending servers, DKIM signs messages to prove they're genuine, and DMARC sets the policy for handling failures. Together they protect deliverability and your domain from spoofing.
Why are my emails going to spam?
Missing or broken authentication is a leading cause. Providers distrust unauthenticated mail — fixing SPF, DKIM, and DMARC often lifts inbox placement significantly.
Do I need all three records?
Yes, for best results. SPF and DKIM establish legitimacy; DMARC ties them together and protects against spoofing. Modern providers increasingly expect all three.