Free tools
Free email security tools
Check your domain's DMARC, SPF, DKIM, and MX records in seconds. Each tool reads your live DNS and explains what it finds in plain English.
DMARC Checker
Free DMARC checker. Check your domain's DMARC record, see your policy in plain English, and find out if your domain is protected from email spoofing.
Run the check→SPF Checker
Free SPF checker. Check your domain's SPF record, see which servers can send your email, and find errors like too many lookups or an unsafe +all.
Run the check→DKIM Checker
Free DKIM checker. Check your domain's DKIM record across common provider selectors and confirm your emails carry a valid DKIM signature, plus SPF and DMARC.
Run the check→MX Lookup
Free MX lookup. Find your domain's mail servers, identify your email provider, and check your MX records along with SPF, DKIM, and DMARC.
Run the lookup→