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Free deliverability / DNS scan

Check the technical foundation of your email in under a minute.

Enter a sending domain to inspect the authentication records mailbox providers use to decide whether your mail is legitimate.

FreeNo cardBuilt for diagnosis
Real DNS lookup. No email required to view the score.

Authentication is only the foundation.

Request the provider-level placement test to see inbox versus spam.

Your test is queued.

Do not publish DNS records or suppress customer data solely from an automated result. Validate changes against your actual sending stack.

What this tool can and cannot tell you

Useful for

  • Fast initial diagnosis
  • Finding obvious configuration or content risk
  • Preparing a more focused technical review

Not proof of inbox placement

  • Mailbox providers use private reputation signals
  • Results vary by message, audience and infrastructure
  • A real placement test requires a controlled send

Need the answer mailbox providers do not publish?

Run the full inbox placement test across Gmail, Outlook and Yahoo, then receive fixes ranked by impact.

Open the placement testTalk to an expert