Thanks for your interest in Postbox, we know you're going to love it!
If you purchased Postbox between March 1st, 2016 and September 3rd, 2019, or if you purchased the Lifetime Upgrade option before July 31st, 2010, then you already have a Postbox Lifetime key and no additional purchase is necessary. Download and install the current version of Postbox, and you're good to go.
If you do not have a Lifetime purchase, then a new purchase is required to use the newest version of Postbox.
How to Tell if You Already Have a Lifetime License
There are two ways to check if you have a Lifetime License:
1) Within Postbox 5 or Postbox 6, go to the Help menu and select "License..." If you see the following panel with the string "This copy of Postbox is licensed to...", then you have a Lifetime License:
2) Visit our License Retrieval page and we'll send you the details from your purchase. If the email received states "Lifetime," then you have a Lifetime License.
Please contact us at the Store and we'll be happy to help!