Complete email security checker

Run MX, SPF, DMARC, DKIM and DNSSEC together, with a checklist that never counts an unavailable check as a failure.

1 · Input

DKIM is published per-selector - without one, DKIM is shown as not configured rather than checked.


What this combines

One page pulling together five checks this site already runs individually - MX, SPF, DMARC, DKIM (when you supply a selector) and DNSSEC - so the overall picture of a domain's email security does not require five separate lookups. Each check reuses the exact same service as its dedicated page; nothing is re-implemented here.

Why the score never punishes an unavailable check

DKIM cannot be checked without knowing its selector, and DNSSEC not being deployed is common and not itself an email-security failure. Both are shown as not configured rather than counted against the score - the summary is "X of Y checks that actually ran passed," where Y excludes anything that could not honestly be evaluated.

What "pass" means for each check

  • MX - at least one mail server is configured.
  • SPF - a valid record exists with no detected warnings.
  • DMARC - a record exists with an enforcing policy (reject counts as pass; none/quarantine are shown as warnings, since they are valid but partial states).
  • DKIM - only checked if you provide a selector; a record is found at it.
  • DNSSEC - the domain is signed and the chain validates.

What this does not check yet

BIMI, MTA-STS and TLS-RPT are not part of this aggregate - see the site's other email-security tools as they are added.

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