Lead Validator

Clean your list,
honestly.

Paste your email list or upload a file. We confirm each address is well-formed and that its domain can actually receive mail — and we say Unknown when the evidence isn’t there, instead of guessing.

What “Valid” means here: the address is well-formed and a real mail route exists. It does not mean we confirmed the individual mailbox or that delivery is guaranteed — we don’t probe mailboxes.
One code = one job, up to its row limit. Nothing is emailed; we only read DNS.
Evidence-based classification · we never claim more than the evidence supports