Proton Mailbridge Release Notes
Last updated: Mar 23, 2026
- Mar 23, 2026
- Date parsed from source:Mar 23, 2026
- First seen by Releasebot:Mar 23, 2026
v3.23.1
Proton Mailbridge fixes email handling so drafts moved to Trash now go to the Trash folder instead of being permanently deleted.
Fixed
- Resolved an issue where emails moved from Drafts to Trash were permanently deleted instead of being placed in the Trash folder.
- Mar 4, 2026
- Date parsed from source:Mar 4, 2026
- First seen by Releasebot:Mar 23, 2026
v3.23.0
Proton Mailbridge adds macOS icon customization, CLI version display, internet status indicator, and reliability fixes.
New
- Support for customizing the Bridge icon on macOS 26 and newer.
- Option to display the current Bridge version when running in Command Line mode.
- Visual indicator when Bridge is not connected to the internet.
Changed
- Clearer descriptions for selected settings and options.
- Improved accuracy and consistency when importing messages.
- Enhanced reliability when authenticating with a hardware security key.
Fixed
- Resolved crashes affecting certain versions of Windows.
- Resolved an issue affecting automatic startup on some Linux systems.
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- Feb 11, 2026
- Date parsed from source:Feb 11, 2026
- First seen by Releasebot:Feb 16, 2026
v3.22.0
New
- Helpful tooltips when copying IMAP/SMTP settings to clipboard.
- Increased the maximum message import size limit to 50MB.
- Added support for hardware security keys (FIDO2) for two-factor authentication.
Changed
- Improved reliability when importing emails.
- Improved password storage reliability on all platforms.
- Improved reliability during long-running mail operations.
Fixed
- Fixed an issue that could cause Bridge to crash when importing certain messages.
- Fixed an issue where imported emails could be altered.
- Jul 21, 2025
- Date parsed from source:Jul 21, 2025
- First seen by Releasebot:Feb 16, 2026
v3.21.2
Changed
- Improved security by not allowing potentially invalid certificates to be accepted.
- Jun 18, 2025
- Date parsed from source:Jun 18, 2025
- First seen by Releasebot:Sep 17, 2025
v3.21.1
Bridge now runs a quick startup database health check to catch issues early, fixes label and folder sync reliability, and improves mailbox handling with better error detection and fewer sync issues.
New
- Bridge now performs a quick database health check on startup to catch potential issues early.
Fixed
- Resolved issues regarding labels and folders not always syncing correctly.
Changed
- Mailbox handling is more reliable, with better error detection and fewer sync issues.
- May 15, 2025
- Date parsed from source:May 15, 2025
- First seen by Releasebot:Sep 17, 2025
v3.20.0
New detailed local logging for label ops and vault keys; Bridge now remembers the last Linux keychain helper. Robust login credential handling. Fixed autostart shortcut for Windows usernames with special chars; improved reliability when many mail changes come from other clients.
New
- Added more detailed local logging for label-related operations and vault key information.
- Bridge now remembers the last keychain helper used on Linux.
Changed
- Username and password handling during login is now more robust.
Fixed
- Fixed autostart shortcut creation on Windows for usernames with special characters.
- Improved reliability when many mail changes are made from other clients.
- Apr 1, 2025
- Date parsed from source:Apr 1, 2025
- First seen by Releasebot:Sep 17, 2025
v3.19.0
Changed
- Security and compatibility upgrade for the graphical user interface.
- Mar 6, 2025
- Date parsed from source:Mar 6, 2025
- First seen by Releasebot:Sep 17, 2025
v3.18.0
Changed
- Revised update logic to account for supported operating systems.
- Feb 19, 2025
- Date parsed from source:Feb 19, 2025
- First seen by Releasebot:Sep 17, 2025
v3.17.0
Changed
- Updated Go to version 1.23.4.
- Various dependency updates.
- Improved email update mechanism during initial synchronization.
Fixed
- Cut and paste options no longer appear in read-only text fields.
- Jan 13, 2025
- Date parsed from source:Jan 13, 2025
- First seen by Releasebot:Sep 17, 2025
v3.16.0
New IMAP AUTHENTICATE PLAIN support; preserves order of multi-valued email headers; clears cached data when removing an account from Bridge; improved human verification prompts; restored -h CLI help flag; fixed rare draft creation/update/send issues during synchronization.
New
- Added support for IMAP AUTHENTICATE PLAIN.
Changed
- Email headers with multiple values now retain their original order.
- Remove all cached data when an account is removed from Bridge.
- Enhanced the user experience for Human Verification Prompts.
- Restored the -h (help) flag in the CLI.
Fixed
- Addressed rare issues with creating, updating, and sending drafts during and after synchronization.