Email authentication

Inspect email DNS and understand SPF, DKIM and DMARC policies.

Choose your next check

4 focused tools. Choose a module and follow the evidence.

Inspect MX, SPF, DMARC and a chosen DKIM selector with configuration-specific findings.

Parse a pasted SPF policy, identify qualifiers and count direct DNS-using terms.

Read a pasted DMARC record and review policy, alignment, reporting and percentage tags.

Inspect a pasted DKIM key record, its key type, flags and public-key size.