Free tools
No account needed. Each one gives you the underlying records, not just a score.
Domain health check
MX, SPF, DMARC, MTA-STS and TLS reporting for any domain.
Email header analyzer
Paste raw headers to see the delivery path, per-hop delays and authentication results.
Email address checker
Spot disposable domains, role mailboxes and typos like gmial.com.
Email deliverability test
Send a message and read the authentication and transport results we observed.
Temporary inbox
A private disposable address that deletes itself.