Postbox is the power email app for busy professionals, like you.
Publisher’s description
What is Postbox?
Postbox by Postbox, Inc. is proprietary Windows software in the email clients category. It ranks 14th by popularity among email clients in this catalogue.
Installation and requirements
The publisher provides EXE (NSIS) installers for 32-bit Windows. Installation asks for administrator rights. It needs Windows 10 or newer. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 7.0.56, released on July 19, 2022. The version history goes back to March 30, 2021: 7 releases, all linked to the official files. That is about 5.4 releases a year. The last update is more than a year old.
Popularity and file types
The Chocolatey package has been downloaded 17,493 times. Similar programs include Tuta Mail, Proton Mail Bridge and Mailspring.
Pros / Cons
Pros
- Documented silent install
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
- No update for more than a year
- The official download link did not answer at the last check
In short: Postbox is an email client tool for 32-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Is Postbox safe to download?
- The file is served by d3nx85trn0lqsg.cloudfront.net; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
76ECE8B86674C0E56203A7A73A19C5A341F8B8A7635A8E45C8A2DC99B1CF753D· Open the VirusTotal report for this hash - The link did not answer when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 7 versions ›7 versions over 1 year · about 5.4 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 7.0.56Latest | July 19, 2022 | — | 32-bit EXE (NSIS) |
| 7.0.53 | December 10, 2021 | — | 32-bit EXE (NSIS) |
| 7.0.52 | November 22, 2021 | — | 32-bit EXE (NSIS) |
| 7.0.51 | November 10, 2021 | — | 32-bit EXE (NSIS) |
| 7.0.48 | July 11, 2021 | — | 32-bit EXE (NSIS) |
| 7.0.46 | March 30, 2021 | — | 32-bit EXE (NSIS) |
| 7.0.18 | March 30, 2021 | — | 32-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Postbox.Postbox -echoco install postbox -ypostbox-7.0.56-win32.exe /SRelated guide: How to use winget: install and update apps
Also for other systems
brew install --cask postboxInformation
- Publisher
- Postbox, Inc.
- Category
- Email clients
- Licence
- Proprietary
- Price
- See the publisher’s site
- Source code
- postbox-inc.com
- Requires
- Windows 11 / 10 (Windows 10+)
- Architecture
- 32-bit
- Installer
- EXE (NSIS)
- Version
- 7.0.56
- Released
- July 19, 2022
- Added to the catalogue
- March 30, 2021
- Versions listed
- 7
- Updates / year
- 5.4
- Chocolatey downloads
- 17,493
- Website
- postbox-inc.com
- winget ID
- Postbox.Postbox
- Chocolatey package
- postbox
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Postbox
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Zimbra Desktop4.50.0Zimbra Desktop is a desktop email client that synchronizes your emails even when offline, so your mailbox is updated when you go online.Proprietary9K ↓
Frequently asked questions
Is Postbox free?
Postbox is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Postbox safe to download?
The download comes from d3nx85trn0lqsg.cloudfront.net; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Postbox with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Postbox be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does Postbox support?
The installer requires Windows 10 or newer and is available for 32-bit.
Does Postbox run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of Postbox?
The versions page lists all 7 versions with links to their official installer files, back to March 30, 2021.
What are alternatives to Postbox?
Tuta Mail, Proton Mail Bridge, Mailspring, eM Client and MFCMapi. The alternatives page compares them.
