The API can return the following results which determine deliverability. Both GOOD and RISKY verdicts are safe to send emails to.
| Verdict | Description |
|---|---|
| GOOD | The email address passes our tests and can be safely emailed |
| INVALID | The email address' format is incorrect or the remote mail server does not exist |
| UNKNOWN | Could not run all validations in time. You may want to try validating using webhooks. |
| REJECTED | The remote mail server rejected accepting emails for this email address |
| RISKY | The email server employs an anti-spam technique which doesn't allow us to detect deliverability. Emails can still be delivered but there is no guarantee it'll be delivered to the addressed inbox. |