Three checks, no account
These run the same code the product runs. They are deliberately narrow, and each one tells you what its answer does not prove — which is usually the more useful half.
Free email verifier
Type one address, get a verdict, a 0–100 score and the plain reason behind it. Nothing is sent to the address, and anonymous checks are never stored.
MX record checker
Enter a domain or an address and see the mail servers it publishes. Proves the domain can receive mail — nothing about any individual mailbox.
Disposable email checker
Check a domain against our throwaway-provider list. DISPOSABLE is a firm answer; NOT LISTED only means it is not on the list today.
What these do not prove
A single check is evidence, not a guarantee. NOT LISTED on the disposable checker means the domain is not on our list today, not that the mailbox is real or the address is safe to send to. An MX record means the domain can receive mail, never that a particular mailbox exists. And one address tells you nothing about the health of the list it came from — for that, upload the list.
- How verification works
- Every check, in order, and what each one can and cannot establish.
An account adds bulk CSV checks, history, the API and a hundred free verifications to start.
Last reviewed 21 August 2026.