Deliverability check for your actual outbound mail.

Send one real email and we score what recipients will see. No DNS guesswork — just the truth from headers.

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Live statusMonitoring
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Monitoring for —Starting checks...
We only store headers and purge them within 24 hours.
01

Send a real email

Use your production sender and paste the address below.

02

We evaluate the headers

Auth, alignment, and deliverability rules in one pass.

03

Get a clear score

One grade, a short why-list, and exact fixes.

What we check

  • SPF, DKIM, DMARC alignment
  • List-Unsubscribe + one-click
  • Sender reputation signals
  • TLS posture + MTA-STS

Score preview

84Healthy

One concise score with 3-5 actionable reasons.

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