Protonmail provide encrypted email. Created by Protonmail The ProtonMail Bridge is an application for paid users that runs on your computer in the background and seamlessly encrypts and decrypts your mail as it enters and leaves your computer. It allows for full integration of your ProtonMail account with any program that supports IMAP and SMTP such as Microsoft Outlook, Mozilla Thunderbird and Apple Mail.
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Bridge
Alternatives
| # | Image | App Name | Features | Platforms | Price | Website Link |
| 1 |  |
Mailvelope | Chrome | Mac Chrome OS Windows Firefox Linux |
Free | Website |
| 2 |  |
ElectronMail |
Tutanota ProtonMail |
Mac Electron / Atom Shell Windows Linux |
Free | Website |
| 3 |  |
ProtonMail Extension |
Web ProtonMail Chrome |
Firefox | Free | Website |
| 4 |  |
GPGMail | GPGTools | Mac | Commercial | Website |
| 5 |  |
Enigmail |
Thunderbird GnuPG |
Mac Windows SeaMonkey Linux |
Free | Website |