Connect your existing MailRambo account to screen email syntax, typos, disposable providers and mail-domain signals during conversations. Screening uses no verification credits and does not confirm mailbox existence. Request full mailbox checks using your own existing allowance, within a limit you approve on MailRambo, or inspect your remaining credits. Catch-all and uncertain results are not confirmed deliverable. Checks do not prove identity, ownership or permission to contact someone. Cannot send email, purchase credits or change your plan.