Api contains one endpoint, that return info about provided email.
By sending GET request, to /{email} endpoint you will receive JSON like this

{
  "status": "ok",
  "email": "some@email.com",
  "is_fake_email": false,
  "is_catch_all_domain": false,
  "email_exists": true
}

Where :

• email_exists - indicates that email provider knows about {email}
• is_catch_all_domain - means that it is ‘catch-all’ domain, and we can’t say surely if {email} exists
• is_fake_email - shows if email is hosted on fake email provider