Free tool
Email Verifier
Paste any address for an instant heuristic check — syntax, free-mail and disposable detection, plus a simulated mailbox verdict.
Demo This browser-only demo simulates the mailbox check. The full ListGuru verifier runs real MX/SMTP analysis with catch-all resolution and SEG detection at 99% accuracy.
Need real verification?
The full verifier runs live mailbox checks with catch-all and SEG resolution — 25 free checks a month.