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Email Security Checker
Checks a domain's SPF, DMARC, DKIM, and MX records live and explains what the results mean in plain language. Read-only DNS lookups via Cloudflare's public resolver; nothing is stored, logged, or sent anywhere else.
Results for
Read the fine print: a missing DKIM result on the default selectors is not
conclusive; the domain may sign with a custom selector. DMARC p=none is monitoring,
not protection. Third-party senders (marketing platforms, ticketing systems) each need their own
SPF include and DKIM selector, so one passing check does not mean every mail stream is covered.
Want help interpreting results for your organization? Get in touch.