Free · Instant · No account needed

Find out why your emails fail — before your recipients do

Send one test email and get a complete authentication report: SPF, DKIM, DMARC, PTR, MTA-STS, DANE, and more — with plain-English explanations, record validation, and suggested fixes.

Check my email setup →

How it works

  1. Get a disposable address

    One click generates a private test inbox unique to your session.

  2. Send your test email

    Send from any provider — your own server, Microsoft 365, Google Workspace, or anything else.

  3. See your full report

    Results appear automatically within seconds. No refresh needed.

What gets checked

Ready to test?

Works with any sending domain — your own mail server, Microsoft 365, Google Workspace, Proton Mail, or any other provider.

Start a free check →