For those who purchased a "Lifetime License," it remains valid for the Postbox product and will not expire, though it does not apply to the new eM Client application. 2. How to Register Your License Code
Professional-grade tools like a built-in HTML editor, image scaling, and a theme editor for a personalized UI. Postbox License Code
A single license code covers all machines (Mac or PC) personally used by the owner. For those who purchased a "Lifetime License," it