Free disposable email checker

Paste an email address or domain to instantly see whether it's a disposable, temporary or throwaway address. No signup, no card.

We never store the address you check.

What is a disposable email address?

A disposable (or temporary, throwaway, burner) email address is one created to last minutes or hours — from services like Mailinator, Guerrilla Mail or 10 Minute Mail. People use them to grab a download or dodge a signup without handing over a real inbox. The address usually stops accepting mail soon after, so anything you send bounces or is never seen.

Why remove them from your list?

Disposable addresses inflate your list, drive up bounce rates and drag down your sender reputation — which quietly hurts deliverability for everyone else on your list. Filtering them out before you send keeps your bounce rate low and your emails landing in the inbox.

Questions people ask

Does this verify that the mailbox exists?

No — this free tool only checks whether the domain is a known disposable provider. To confirm an address can actually receive mail, run a full Safilist verification, which also catches invalid mailboxes, catch-all domains, role accounts and typos.

Can I check a whole list at once?

Yes. Sign up free and upload a CSV — your first 100 verifications every month are free, no card required.

Check a whole list, not just one address

Safilist verifies deliverability, catch-all, role and disposable in one pass. 100 free every month.

Verify 100 emails free