Purchasing FAQ


Purchasing Postbox



  • What platforms does Postbox support?

    At this time we support Windows and Macintosh.

  • Do you have plans for a Linux version?

    We do not have plans for a Linux version at this time

  • What are the system requirements for Postbox 4?

    Please visit our download page for recommended system requirements.

  • What languages are available for Postbox?

    We officially support English, but community-translated Language Packs are available in German, French, Spanish (Spain), English (British), Italian, Dutch, Portuguese (Brazilian), Russian, and Swedish. We will evaluate demand for additional languages over time.

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

    You bet! Postbox lets you keep existing email addresses and accounts. In fact, we make any webmail account even better by making it easy to find and use almost anything from your webmail accounts.

  • Does Postbox work like Gmail?

    Postbox and Gmail work beautifully together, a match made in heaven. But there are some important differences between Gmail's webmail interface and Postbox that you should know about. Please see our Using Postbox with Gmail page.

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

    Postbox currently supports POP3, IMAP, and SMTP protocols, so 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.

  • Does Postbox include a calendar?

    Not directly, but you can use the Lightning calendaring extension within Postbox, which provides an integrated calendaring experience. Please see our visit our Lightning page to learn more.

    Note: Lightning is developed by a third party, and as such, is not supported by Postbox, Inc. 

  • Are there add-ons available for Postbox?

    Yes! Please see our Add-ons Page for a list of third party add-ons developed for Postbox.

  • Do you provide support for add-ons?

    Postbox does not provide support for the functionality of third party add-ons, as these are not developed by Postbox. If an add-on isn't working as you expect, or if an add-on is causing problems within Postbox, we recommend disabling the add-on or contacting the add-on developer directly for assistance.

  • Do unmodified Mozilla add-ons work in Postbox?

    Unmodified Mozilla add-ons do not work within Postbox at this time. Developers of existing Mozilla add-ons need to port their add-ons to Postbox. Sometimes this can be as simple as changing a few parameters, such as product, version, etc. Other times the porting effort may be more complex.

  • What if I don't see my favorite add-on listed?

    We work with extension developers as much as possible, but if there's a particular add-on that you really like, our suggestion is always to contact the add-on developer to have them port their add-on to Postbox.


Purchasing Postbox

  • What is the licensing model?

    Postbox is priced by the version, e.g. 2.0, 3.0, etc. Once you purchase, you are free to use that version for as long as you like. We provide free updates within a major version, e.g. 3.0.1, 3.0.2, but upgrades to the next major version would have an upgrade fee, e.g. from 3.x to 4.x. There's no requirement to upgrade, however.

    The 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 you will need additional licenses for those users.

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

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

  • Do you offer discounts for seniors, non-profits, students, or other groups?

    Not at this time. But we encourage everyone to become a Facebook Fan, follow us on Twitter, or subscribe to our blog to learn about special deals as they become available!

  • Do you charge taxes?

    Only EU customers are subject to VAT taxes if they do not have a VAT ID. For more info, please see our VAT Information Page.

  • Can I try Postbox before I buy?

    Absolutely! Try Postbox for free for 30 days.

  • Do you offer a guarantee?

    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 60-day money-back guarantee. That's up to 90 days to determine if Postbox is right for you!

    If for any reason you would like a refund, simply submit a refund request within 60 days of purchase, and we'll promptly refund your order -- no questions asked!

  • What is your upgrade policy?

    If you purchased Postbox on or after November 20, 2014, then you already have a key that will work in Postbox 4.

    Otherwise, in order to keep Postbox affordable, we offer a single low price for all buyers of each major version of Postbox.

    Updates within a major version (e.g. from 4.0 to 4.0.1, 4.1, etc.) are provided free of charge.

  • How do I retrieve a lost license key?

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