01 / Check
Useful signals.
Check address structure, whether its domain receives email, disposable and free-provider classifications, role addresses, common typos, and mailbox acceptance when available.
emailverifier.dev / about
Email verification without invented certainty.
I built emailverifier.dev for developers who need a useful answer before an address enters their product.
The API keeps confirmed failures, risk signals, and unknown results separate so your code can handle each one honestly.
02 / Decide
Clear outcomes.
Responses distinguish deliverable, risky, undeliverable, and unknown addresses, then recommend whether to allow, block, or review.
03 / Limit
No fake promises.
Verification cannot guarantee delivery, prove inbox ownership, or predict engagement. Timeouts, provider policies, and catch-all domains can leave the answer unknown.
Test it on your signup flow.
Create your first project with 1,000 non-expiring starter credits. No card required.