If you want, I can:
(Invoking related search suggestions.)
A: The original purchaser likely filed a chargeback with their credit card company. Postbox invalidated the key pool. You have been scammed. Your only recourse is to dispute with the seller or buy directly from Postbox. Postbox License Code
Postbox uses online activation. If a license code is leaked or abused, the developers remotely blacklist it. You may find your "cracked" activation working for a week, then suddenly disabled. If you want, I can:
If you manage a team of 5 or more, Postbox offers volume licensing. Instead of individual codes, you receive a license file or a site-wide key. (Invoking related search suggestions
Most cracked license codes come bundled with malware, keyloggers, or cryptocurrency miners. These can compromise your email accounts—the very data you are trying to protect.