Validate emails, catch temporary addresses, and check deliverability with a free REST API. No signup or API key required to get started.
Check format, DNS/MX records, and detect disposable addresses in a single call.
Validate an email
Validate a domain name directly — no full email address needed. Same detection engine.
Check a domain
Validate thousands of addresses in one request. Limits scale from 10,000 anonymous up to 100,000 on Pro.
Run a bulk job
A continuously updated blacklist with multi-layer detection, including MX-server and IP matching.
Browse the blacklists
Catches temp-mail services that ride on real Gmail, Outlook, and iCloud mailboxes via plus-aliases.
How it works
Every result carries a 0–100 confidence score and the signals that triggered it, for finer control.
Read the scoring model