| Certainty | VerboseOutput | Description |
|---|---|---|
| verified | verified | Mailbox exists, is reachable, and not known to be illegitimate or disposable. |
| undeliverable | mailboxDisabled | The user mailbox has been disabled. |
| mailboxDoesNotExist | The user mailbox does not exist at this domain. | |
| mailboxFull | The user mailbox is full. | |
| syntaxFailure | The syntax of the email address is incorrect. | |
| unreachable | unreachable | The domain is not responding to validation requests or does not have any active mail servers. |
| illegitimate | illegitimate | Seed, spamtrap, black hole, technical role account or inactive domain. |
| roleAccount | Role accounts such as support@, sales@, info@ . | |
| typoDomain | The domain was close to a common domain and although it exists, it is highly unlikely to be correct. | |
| disposable | disposable | Domain is administered by a disposable email provider (e.g. Mailinator). |
| unknown | unknown | We were unable to conclusively verify or invalidate this address. |
| timeout | The request timed out due to the host domain not responding in time. | |
| acceptAll | The domain is accept-all, so the username cannot be validated. |
Additional information on how to manage the result types can be provided by your account manager or your local support team.
