About FreeBulkEmailVerifier

FreeBulkEmailVerifier is a multi-signal email verification tool. We check syntax, domain, MX records, SMTP where it's actually possible, disposable domains, role addresses, and catch-all behavior — and we report honestly when we don't have enough evidence to be sure.

We built this because a lot of "free" email verifiers require a signup, a credit card on file, or only give you a one-time credit. We wanted something that's actually free to use every day, with no account required.

Our principle is simple: never guess VALID just to look more accurate. If we can't confirm a mailbox, we say UNKNOWN or VALID (ESTIMATED), and explain why.

For higher-volume, ongoing verification work, we also offer a paid Windows desktop application.