winget install --id Proton.ProtonMailBridgeAbout 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.
What's new in 3.25.0
Added - BRIDGE-519: Include recipients address in an errormapped error. - BRIDGE-547: Automatically retry failing tests on CI. - BRIDGE-511: Include the full error-chain when an update fails to install. - BRIDGE-139: New test that checks the validity of KB article URLs. - BRIDGE-531: New modernize linter and CI go:fix piplines added. - BRIDGE-559: NoSuchUser error gets mapped to a user friendly message. Changed - BRIDGE-534: Usage of exp/maps replaced with maps from standard library. - BRIDGE-526: Go toolchain bump to 1.26.2. - BRIDGE-514: Map API validation errors to a more user-friendly error. - BRIDGE-528: Removed old legacy versioner utility & legacy updater logic. - BRIDGE-486: Removed stale feature flags. - BRIDGE-483: Patch vulnerabilities for March 2026. - BRIDGE-548: Modify message building MIME boundary generation logic (stochastic). Fixed - BRIDGE-557: Change Local Cache uses QFileDialog instead of Qt.Quick Folder Dialog. - BRIDGE-540: Runtime index out of bounds error during build stage. - BRIDGE-515: Replace old go syntax using go:fix to match new go 1.26 syntax. - BRIDGE-503: Dependencies update and updated deprecated functions. - BRIDGE-512: Attachment filenames are sanitized in user debug mode. - BRIDGE-415: Remove temporary directory after update installation on macOS. - BRIDGE-499: Correct error value gets logged when building a RFC822 message.
Version history
| Version | Updated | Notes |
|---|---|---|
| 3.25.0 | Unknown | Added - BRIDGE-519: Include recipients address in an errormapped error. - BRIDGE-547: Automatically retry failing tests on CI. - BRIDGE-511: Include the full error-chain when an update fails to install. - BRIDGE-139: New... |
| 3.24.2 | Unknown | Changed - BRIDGE-535: Use new base golang version based on Debian Bullseye. |
| 3.24.1 | Unknown | Changed - BRIDGE-522: Restored old unlabel endpoint logic under a feature flag. |
| 3.23.1 | Unknown | Fixed - BRIDGE-488: Restore previous RemoveFromMailbox behavior (< 3.23.0). Drafts moved to trash should not be perma-deleted. |
| 3.22.0 | Unknown | Added - BRIDGE-358: Hover tooltip for IMAP/SMTP settings clipboard UI actions. - BRIDGE-356: Added support for unavailable keychain retries on Linux, such that we don't wipe the vault. Feature flag support before Bridge... |
| 3.21.1 | Unknown | Changed - BRIDGE-383: Extended internal mailbox conflict resolution logic and minor changes to the mailbox conflict pre-checker. |
| 3.20.0 | Unknown | Added - BRIDGE-340: Added additional logging for label operations and related bad events. - BRIDGE-324: Log a hash of the vault key on Bridge start. Changed - BRIDGE-352: Chore: bump go to 1.24.2. - BRIDGE-353: Chore: up... |
| 3.19.0 | Unknown | Changed - BRIDGE-316: Update Qt to latest LTS version 6.8.2. |
| 3.18.0 | Unknown | Changed - BRIDGE-309: Revised update logic and structure. - BRIDGE-154: Added access token to expiry refresh request. |
| 3.17.0 | Unknown | Added - BRIDGE-271: Report version file check failure to Sentry. - BRIDGE-247: Test: Automate Bridge 0% update rollout. - BRIDGE-248: Test: Additional Bridge UI e2e automation tests. Changed - BRIDGE-73: Update goopenpgp... |
| 3.16.0 | Unknown | Added - BRIDGE-205: Add support for the IMAP AUTHENTICATE command. - BRIDGE-268: Add kill switch feature flag for the IMAP AUTHENTICATE command. - BRIDGE-261: Delete gluon data during user deletion. - BRIDGE-246: Test: A... |
| 3.15.1 | Unknown | Changed - BRIDGE-281: Disable keychain test on macOS. |
| 3.15.0 | Unknown | Added - BRIDGE-238: Added host information to sentry events; new sentry event for keychain issues. - BRIDGE-236: Added SMTP observability metrics. - BRIDGE-217: Added missing parameter to the CLI help command. - BRIDGE-2... |
| 3.14.0 | Unknown | Changed - BRIDGE-207: Failure to download or verify an update now fails silently. - BRIDGE-204: Removed redundant Sentry events. - BRIDGE-150: Observability service modification. - BRIDGE-210: Reduced log level of cache... |
| 3.13.0 | Unknown | Added - BRIDGE-37: added message broadcasting functionality. - BRIDGE-122: added observability service. - BRIDGE-119: added support for Feature Flags. - BRIDGE-116: added command-line switches to enable/disable keychain... |
| 3.12.0 | Unknown | Added - BRIDGE-75: Bridge repair button. - BRIDGE-79: Add New Outlook for Mac KB disclaimer. Changed - BRIDGE-16: Bump version Go 1.21.9 Qt 6.4.3. - BRIDGE-23: Update gluon to go 1.21. - BRIDGE-22: Update gpa to go 1.21.... |
| 3.11.1 | Unknown | Fixed - BRIDGE-70: Hotfix for blocked smtp/imap port causing bridge to quit. |
| 3.11.0 | Unknown | Added - GODT-3185: Report cases which leads to wrong address key used. Changed - BRIDGE-14: HV3 implementation. - BRIDGE-15: Certificate install is now also done during Outlook setup on macOS. - GODT-3146: Start servers... |
| 3.10.0 | Unknown | Added - GODT-3199: Add package log field. - GODT-3220: Add more test scenarios. Changed - GODT-3193: Preserve attachment encoding. - GODT-3214: Encrypt only with primary key. - GODT-2662: Use tart runner for darwin jobs.... |
| 3.9.1 | Unknown | Fixed - GODT-3235: Update bridge update key. |