Hunter Email Verifier

Hunter's email verifier combines standard SMTP and MX checks with access to Hunter's B2B email database, giving you an extra signal about whether an address is legitimate. Format validation and disposable provider detection round out the verification process, catching risky addresses before they reach your list.

Best for B2B marketers and sales teams who need high confidence that email addresses belong to real business accounts. Hunter's database lookups add accuracy you won't get from verification-only APIs, especially for business domains.