Get your free grade in under 30 seconds. No sign-up required.
The fastest way to find what's hurting your email deliverability — and get it fixed.
SPF, DKIM, DMARC, MX, DNSSEC and more — checked in seconds.
Every check shows the issue and exactly how to fix it — no jargon.
Our DNS specialists implement every fix. Most done within 24 hours.
Every scan runs the same tests mail providers use to decide inbox or spam.
Does your domain resolve to a live server?
Are your nameservers properly configured?
Mail servers correctly routed, no bypass risks.
Only authorised senders can send as you.
Policy enforcement against spoofing and impersonation.
Cryptographic email signing — we try 13 common selectors.
Force TLS on inbound mail. Stops downgrade attacks.
TLS failure reporting so you see delivery issues.
Cryptographic DNS signing to stop cache-poisoning.