About Proton Mail Bridge
Proton Mail Bridge adds end-to-end encryption to popular email apps, including Outlook, Thunderbird, and Apple Mail. Secure email made easy.
Proton Mail Bridge 3.27.1
Use Proton Mail with your desktop email client
- By Proton AG
- Open Source
- Updated Sep 29, 2026
What's new in 3.27.1
Fixed
- BRIDGE-644: Recover from corrupted sync state file; force file sync during write.
Technical details
| Publisher | Proton AG |
|---|---|
| Version | 3.27.1 |
| Release date | 2026-09-29 |
| License | GPL-3.0 |
| Installer type | exe |
| Architecture | x64 |
| Package ID | Proton.ProtonMailBridge |
Links & install command
Install Proton Mail Bridge from the command line with Windows Package Manager (winget):
winget install --id=Proton.ProtonMailBridge -eOlder versions
- 3.27.0
- 3.26.0
- 3.25.0
- 3.24.2
- 3.24.1
- 3.23.1
- 3.22.0
- 3.21.1
- 3.20.0
Related software
Microsoft Outlook 2021
All-in-one Email and scheduling solution
Spark Desktop 3.32.1
Smart. Focused. Email.
MozBackup 1.5.1
Efficient Backup Tool for Mozilla Profiles
Tuta Mail 362.261023.2
Tutanota is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices.
Betterbird 153.5.0
Betterbird is a fork of Mozilla Thunderbird with additional features and bugfixes.
Papercut SMTP 7.8.0
Standalone SMTP server designed for viewing received messages
Postbox 7.0.56
Postbox is the power email app for busy professionals, like you.
smtp4dev 3.15.0
A fake SMTP server for development.