Already a Postbox customer?  Here's how to upgrade to Postbox 3:

If you have a Postbox Lifetime Upgrades License, then simply enter your license key into Postbox 3 and you're all set!  There's nothing you need to purchase.

If you purchased from the Postbox Store on or after August 15th, 2011, then you already have a Postbox 3 license key!  Simply download the new version from our website (the trial) and Postbox 3 will use your existing license key, mail settings, etc.  There's nothing more to set up!

If you purchased from the Postbox Store before August 15th, 2011, then you are eligible to upgrade to Postbox 3 for only $9.95.  Visit the Postbox Store and enter your Postbox 1.x or Postbox 2.x license key during checkout.  Next, download the trial version of Postbox from our website and enter your new license key. Postbox 3 will use your existing email settings, so you should be good to go.

Information for Mac App Store Customers

The Mac App Store enables customers to receive free "updates" within a product version. For example, customers received new features, styling, and performance enhancements in the free update from Postbox 2.1.4 to Postbox 2.5.

However, the Mac App Store does not provide existing customers with a way to "upgrade" to new a product, such as Postbox 3.0, either at a discount or for free if purchased within a specific timeframe. 

To avoid confusion, the full version of Postbox 3 will not be made available in the Mac App Store until Apple implements upgrade capabilities.

If you purchased Postbox 2 from the Mac App Store and would like to upgrade to Postbox 3, you can:

• wait for the Mac App Store to support new product upgrades, at which time Postbox 3 will be made available the Mac App Store
• if you do not wish to wait, you can visit the Postbox Store to purchase an upgrade for only $9.95 (see our website for details) 

How to upgrade if you purchased from the Mac App Store, and are running Postbox 2.5.x:

• There is no license key generated for Mac App Store purchases, so please follow these steps.
• Load the Postbox start page by selecting Home from the Postbox Go menu (note: your start page must be set to the default in Preferences / General). Here you will find instructions on how to purchase the Postbox 3 upgrade. 
• Go into your Applications folder and drag the Postbox application to the trash (don't worry, your mail and settings are located elsewhere).
• Empty your Trash.
• Restart your Mac.
• Download and install Postbox (the trial) from the Postbox website.
• Start Postbox, and enter your license key by selecting License from the Help menu. 

How to upgrade if you purchased from the Mac App Store, but are now running the 3.0 trial:

• There is no license key generated for Mac App Store purchases, so please follow these steps.
• Open the Applications folder and drag the Postbox application icon to the trash (don't worry, your mail data and settings are stored elsewhere).
• Empty the trash.
• Restart your computer.
• Go into the Mac App Store, click the purchases tab, and "Install" Postbox.
• Once installed, launch the Postbox application. This is important, as this step will register Postbox on your machine as purchased.
• Load the Postbox start page by selecting Home from the Postbox Go menu (note: your start page must be set to the default in Preferences / General). Here you will find instructions on how to purchase the Postbox 3 upgrade. 
• Go into your Applications folder and drag the Postbox application to the trash (don't worry, your mail and settings are located elsewhere).
• Empty your Trash.
• Restart your Mac.
• Download and install Postbox (the trial) from the Postbox website.
• Start Postbox, and enter your license key by selecting License from the Help menu.

Technical Note:

If you are upgrading from an earlier version of Postbox, you may wish to re-index your messages to improve search performance.  Go to the Tools menu and select Indexing > Index All Folders.  You may wish to perform this function overnight to avoid work disruptions.