FAQ

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Postbox has been acquired by eM Client and is no longer in development or available for purchase. Learn more...


Purchasing Postbox

Are the licenses per user or per machine?

Postbox licenses are per user, so one license covers any/all machine(s) you personally use, Mac or PC. 

Does a single license key work on a Mac or PC?

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

Can I try Postbox before I purchase it?

Absolutely! Try Postbox for free for 30 days.

How do I retrieve a lost license key?

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


General

What platforms does Postbox support?

We support Windows 8 through 11 and macOS 10.13 through 15.

Do you have plans for a Linux version?

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

What are the system requirements for Postbox?

Please visit our System Requirements page for details.

What languages are available for Postbox?

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

Can I use Postbox for Gmail, Yahoo, AOL, or other webmail accounts?

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

Can I use Postbox to get mail from my Exchange server? 

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

Does Postbox include a calendar?

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

Is there a Windows 64-bit version available?

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

Is there an option for PGP Encryption?

The 3rd-Party Enigmail for Postbox Labs project provides OpenPGP Encryption.

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