Email Risk Check API

What it does

Email Verification checks whether an email address is syntactically valid and whether its domain is set up to receive mail. Send an email in the query string and get back a structured result you can use to filter bad signups, reduce bounce rates, and flag risky addresses before you store or send to them.

The response includes the original email, the domain, and a result plus reason string for your application logic. You also get boolean checks for valid_syntax, has_mx, disposable, free_provider, role_account, and mailbox_checked, along with any mx_records discovered.

Use Email Verification when you need to validate registration forms, clean marketing lists, or gate access to workflows that depend on a reachable inbox. It is useful when you want to distinguish disposable addresses, role-based accounts like support@, and domains that do not publish MX records.

Keep the response close to your own rules: treat the booleans as machine-readable signals and use reason and result as the human-facing explanation when you decide whether to accept or reject an address.