Email Security Checker
Inspect published SPF, DMARC and MX records, plus DKIM for a selector you provide.
01
Domain name
How it works
Looks up public DNS TXT and MX records for the exact domain entered. SPF checks include duplicate policies and the final all mechanism; DMARC checks include the published p policy. Provide a DKIM selector from your mail provider to check its public-key record.
This is a DNS record inspection, not an email delivery or authentication test. It does not evaluate SPF includes and lookup limits, organizational-domain DMARC inheritance, alignment or DKIM signatures. A missing MX is not necessarily a problem for a sending-only domain. DNS failures remain unavailable rather than passing.