Postbox versions 7 and above are sold under an annual licensing model. Your Postbox license is good for one year from the date of purchase.

Not at this time, we're sorry.

Postbox licenses are per user, so one license will cover any/all machine(s) you personally use, Mac or PC. If more than one person will be using Postbox, then additional copies can be purchased at a discount at our Store.

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.

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.

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.

Yes! Your Postbox license will work on Mac, PC, or both.

We're sorry, but we do not offer upgrade discounts at this time.

Yes, we do! Students and educators can receive Postbox for 50% off the retail price. Please visit our Educational Discounts page for details.

Absolutely! Try Postbox for free for 30 days. 

Yes, we know that Postbox will provide a terrific email experience for you, so in addition to our free 30-day trial, we also offer a 30-day money-back guarantee. That's up to 60 days to determine if Postbox is right for you.

If for any reason you would like a refund, simply submit a refund request within 30 days of purchase, and we'll promptly refund your order -- no questions asked!

Please enter the email address used to purchase Postbox on this form and we'll send your license key to you right away.

At this time we support Windows 8 and 10, and macOS 10.13 and higher.

We do not have plans for a Linux version at this time, but we will continue to monitor demand.

Please visit our System Requirements page for details.

English, German, French, Spanish (Spain), English (British), Italian, Dutch, Portuguese (Brazilian), Russian, and Swedish. We will evaluate the demand for additional languages over time.

You bet! Postbox will work with any IMAP or POP email server.

Postbox currently supports POP3, IMAP, and SMTP protocols. If your administrator has those protocols turned on in Exchange, then you can use Postbox to send and receive mail from those servers. Postbox does not currently support native Exchange protocols at this time.

Postbox does not contain a calendar. We're solely focused on providing you with the very best email experience possible.

Postbox on Windows is currently 32-bit, which can run in either 32-bit or 64-bit versions of Windows. We do not have a 64-bit version of Postbox available for Windows at this time.