Test MX, SPF, DMARC and DKIM
Enter an email domain to check its public mail and authentication records using free DNS-over-HTTPS lookups.
-MX records
-SPF
-DMARC
-DKIM
DKIM records use a selector chosen by the mail provider. Enter one when known; the tool cannot reliably guess every possible selector.
Email DNS Records Checked
- MX records for receiving mail
- SPF policies published in TXT records
- DMARC policy at _dmarc.yourdomain
- Optional DKIM key at selector._domainkey.yourdomain
Email DNS Checker FAQ
Does finding these records guarantee email delivery?
No. The records are important, but reputation, message content, alignment and mail-server configuration also affect delivery.
Why does DKIM say not checked?
DKIM requires a selector. Different providers and accounts use different selector names.