Alternatives to Kitterman SPF Validator

Online SPF tools that retrieve and validate a domain's SPF record or test a draft record. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as Kitterman SPF Validator.

  • MXToolbox

    A web-based suite of DNS, MX, SPF, DMARC and blacklist lookups for diagnosing email delivery.

    FreemiumProprietaryWeb

    MXToolbox validates SPF with error highlighting alongside DMARC, MX and blacklist checks, but its pages carry prompts for the paid service.

Similar software

Related functionality, not a direct replacement.

  • LearnDMARC

    An interactive web console that visualizes how SPF, DKIM and DMARC evaluate a real email.

    FreeProprietaryWeb

  • EasyDMARC DKIM Lookup

    A free web tool that looks up and validates a domain's DKIM record for a given selector.

    FreeProprietaryWeb

  • dmarcian DMARC Inspector

    A free web tool that shows a domain's DMARC record and checks it for syntax and policy issues.

    FreeProprietaryWeb

  • Maileroo Mail Tester

    A free web tool that grades a test email for authentication, spam score, DNS and blacklists.

    FreeProprietaryWeb

  • GlockApps

    An online email deliverability tester that checks inbox placement, spam scores, blocklists and domain authentication.

    FreemiumProprietaryWeb

  • MXToolbox DKIM Lookup

    A free web tool that tests whether a domain publishes a valid DKIM public key for a selector.

    FreeProprietaryWeb