Email certainty

Every email returned by Icypeas comes with a certainty: how sure we are that the address exists and will receive your message.

certainty	Applies to	Meaning	Send?
ultra_sure / very_sure	All searches	99% confidence. Expected bounce rate below 1%.	✅ Yes
probable	All searches	95% confidence. Expected bounce rate below 5%.	👍 Usually
undeliverable	Email verification	The address does not exist.	❌ No
not_found	Email search, domain search	No email was found for this person or domain.	Nothing to send
not_found	Email verification	We can't tell whether the address exists (for example the server accepts everything).	⚠️ At your own risk

Where to find it in a result:

"results": {
  "emails": [
    {
      "email": "pierre.landoin@icypeas.com",
      "certainty": "ultra_sure",
      "mxProvider": "google",
      "mxRecords": ["google.com"]
    }
  ]
}

mxProvider tells you who hosts the mailbox. See MX providers.