Do you store the addresses I check?

No. We don’t save emails for marketing or reuse. Like other free tools here, we only keep aggregate usage counts.

Is this a guarantee the email will land in the inbox?

No. Results are signals (format, domain, provider hints, risk-style outcome). Always follow your ESP’s guidance and applicable laws for outreach.

We rate-limit checks per IP so the tool stays free. Wait and try again.

Check one address for format, domain, disposable and free-mail signals, and a summarized outcome - before you send or import a list.

A clean contact list without context is spam. Find the threads where that person or company raises the problem you solve, then reach out.