Terms of use

Last updated: October 27, 2026

What the checker tells you

E-mail AntiSpoofing explains the authentication results your mail provider recorded, and the public DNS records of a domain. A passing result shows which domain sent a message; it does not prove the message or its links are safe. Use the result as one signal, together with your own judgement.

No warranty

The service is free and provided “as is”, without any warranty. We are not responsible for decisions you make based on a result, or for losses caused by fraudulent email.

Fair use

Don’t use automated scripts to send large numbers of checks, try to break or overload the service, or use it to plan attacks on other people’s domains. We limit the number of checks per visitor and may block abusive traffic.

Changes

We may change these terms. The date at the top shows the latest version.

Operated by FreddyDeveloper, Panama. Contact us.