Every email we return undergoes a triple verification process to ensure its validity. If an email is flagged as invalid by one provider, we continue checking until a valid email is confirmed or all options are exhausted.
We categorize emails into four statuses:DELIVERABLE: Emails that we are the most confident because we have direct confirmation from the email server that theyHIGH_PROBABILITY: 9% bounce rate. (those are emails that are catch-all, but likely valid based on our triple verification process)CATCH_All: catch-all emails are emails we have mixed signal. Usually linked to company mailserverINVALID: Very likely to bounce.
This field returns the email with the lowest bounce rate. If multiple valid emails are found, we prefer the one with a domain closest to the user-entered domain. INVALID emails are excluded in this result.