Validation response End user message Email validation API result Cost per request
Verified A green border with the 'Verified' tooltip. The mailbox is:
  • Verified - exists and is reachable
  • Unknown - not known to be illegitimate or disposable
1 credit
Unverified A red border with the 'Unverified' tooltip. The mailbox could not be verified due to one of these reasons:
  • Undeliverable – the syntax of the email is incorrect, the mailbox does not exist, or mailbox is full, suspended or disabled.
  • Unreachable – the domain cannot be resolved, does not exist, has no reachable mail exchangers, is not responding to validation requests or does not have any active mail servers.
  • Illegitimate – a seed, spamtrap, black hole, technical role account or inactive domain.
  • Disposable – the domain is administered by a disposable email provider (e.g. Mailinator).
1 credit
Timed out No message to the user, the entry is accepted without validation. Connection from the server was lost. No cost
Error No message to the user, the entry is accepted without validation. Our Email Validate API encountered an error. No cost
Integration Wizard

Understand validation responses