Copyright (c) 2020 Proton Technologies AG

This repository holds the ProtonMail Bridge application. For a detailed build information see BUILDS. For licensing information see COPYING. For contribution policy see CONTRIBUTING.

ProtonMail Bridge for e-mail clients.

When launched, Bridge will initialize local IMAP/SMTP servers and render its GUI.

To configure an e-mail client, firstly log in using your ProtonMail credentials. Open your e-mail client and add a new account using the settings which are located in the Bridge GUI. The client will only be able to sync with your ProtonMail account when the Bridge is running, thus the option to start Bridge on startup is enabled by default.

When the main window is closed, Bridge will continue to run in the background.

More details on the public website.

You need to have a keychain in order to run the ProtonMail Bridge. On Mac or Windows, Bridge uses native credential managers. On Linux, use Gnome keyring or pass.

• BRIDGESTRICTMODE: tells bridge to turn on bbolt's "strict mode" which checks the database after every Commit. Set to 1 to enable.

• PROTONMAIL_ENV: when set to dev it is not using Sentry to report crashes
• VERBOSITY: set log level used during test time and by the makefile.
• VERSION: set the bridge app version used during testing or building.

• TEST_ENV: set which env to use (fake or live)
• TEST_ACCOUNTS: set JSON file with configured accounts
• TAGS: set build tags for tests
• FEATURES: set feature dir, file or scenario to test