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Install Mailspring

Boost your productivity and send better email with Mailspring, the best mail client for Mac, Linux, and Windows.

Install with winget
winget install --id Foundry376.Mailspring
Upgrade
winget upgrade --id Foundry376.Mailspring
Uninstall
winget uninstall --id Foundry376.Mailspring

About Mailspring

Boost your productivity and send better email with Mailspring, the best mail client for Mac, Linux, and Windows.

What's new in 1.21.1

Performance: - Optimized search regex compilation in category and label pickers. (#2715) - Improved sync engine performance by reducing unnecessary SQLite writes and moving parsing outside transactions. Bug Fixes: - Improved theme support in calendar - Fixed dark mode email bodies not reflecting the system tint color. - Fixed activeMarks access errors in the composer editor. (#2714) - Fixed thread list scroll indicator not sliding through time when dragging the scroll handle. (#2716) - Fixed contains error when parentFilter receives a non-Element node. (#2712) - Fixed secrets potentially appearing in the connection error detail modal. (#2717) - Fixed package name validation rejecting names with uppercase letters. (#2718) - Fixed sync engine crash during many-account sync by increasing SQLite busy timeout. - Fixed message importance headers not normalized for compatibility with some providers. (mailsync#113) - Improved error logging for empty or malformed error objects. (#2713) Developer: - Upgraded Electron from 41.5.0 to 41.6.1. - Upgraded React and React DOM to v17. (#2725) - Upgraded react-transition-group from 1.2 to 4.4.5. - Replaced deprecated componentWillMount with componentDidMount. (#2724) - Replaced legacy context API with React Context. (#2722, #2723) - Refactored class components to functional components with React.memo. (#2720) - Removed PropTypes, replaced with TypeScript types. (#2710) - Added missing TypeScript types to function declarations across many files. - Renamed remaining package spec directories to specs, converted JSX to TSX. (#2711) - Added Playw...

Read release notes

Version history

Version Updated Notes
1.21.1 Performance: - Optimized search regex compilation in category and label pickers. (#2715) - Improved sync engine performance by reducing unnecessary SQLite writes and moving parsing outside transactions. Bug Fixes: - Impr...
1.21.0 Unknown Features: - Added Reply-To field to the composer header, allowing you to specify a different reply address when composing messages. (#2691) Thanks @Argjend12345! - Added bulk RFC2822 message export functionality to the s...
1.20.1 Unknown Fixes: - Resolves an issue with the inline composer's key handling that could cause Gmail-style shortcuts to activate while you were typing into the subject line or recipients.
1.20.0 Unknown Features: - Added an "Automatic" theme (the new default) that follows system light/dark mode. - Added system accent color support — the standard light and dark themes now use your OS accent color by default and this can...
1.19.1 Unknown Bug Fixes: - On Windows, fixed notification click handling and removed a redundant window display call. (#2648) - Fixed the custom port input not updating in IMAP onboarding. (#2646) - Fixed VoiceOver handling on email c...
1.18.0 Unknown Features: - Grammar check is now available in the composer! (#2612) - This feature relies on a deployment of LanguageTool at id.getmailspring.com - when you use Grammar Check, small snippets of your draft are sent to thi...
1.17.4 Unknown Features: - Added Agenda view to the calendar for chronological event browsing. (#2592) - Added Linux Do Not Disturb detection for notification suppression. (#2595) - Added Windows jump list and badge icon desktop integr...
1.17.3 Unknown - Updates the .deb package dependencies to address Ubuntu 25 (libtidy58 replaces libtidy5deb1) and Linux Mint 22 (libcurl4t64, libgtk-3-0t64 instead of libgtk-3-0) installation issues. - Fix issues sending email on Windo...
1.17.2 Unknown Features: - Calendar now includes a Day View for more detailed scheduling. (#2573) - Calendar events can now be edited and synced back to the server. Drag events to reschedule them, or double-click to edit details. (#257...
1.17.1 Unknown Bug Fixes: - Keyboard navigation in Mailspring's thread list has been fixed! - On Fedora, the libtidy dependency is more broadly specified to support both soname versions (libtidy.so.5 or libtidy.so.58) We're aware of is...
1.17.0 Unknown This is Mailspring's largest update in a while! This release includes significant security updates - Mailspring now uses the system-bundled sasl2, ssl, crypto and curl libraries on all Linux platforms, and the UI has mov...
1.16.0 Unknown - Thunderbird-style Autoconfiguration (#2493) - Fix in-app previews for PDF attachments on Windows / Linux - Update and improve zh-TW Traditional Chinese locale (#2498) - Update Czech translation (#2500) - snap: Use core...
1.15.1 Unknown This is a patch release that resolves several user-reported issues. Thank you! - On Windows, notifications could not appear because of an issue checking Windows "Quiet Hours" settings - Dragging and dropping file attachm...
1.15.0 Unknown Happy 2025! This version of Mailspring upgrades the app to Electron 33 and Chromium 130, ensuring the latest upstream bug fixes, security patches and improvements are available in the app. - macOS 10.15 (Catalina) is no...
1.14.0 Unknown This version of Mailspring includes several changes and bug fixes, as well as an update to our Electron core. - Mailspring now connects to Outlook accounts using OAuth, resolving connection issues for Hotmail, Outlook an...
1.13.3 Unknown Release notes
1.13.2 Unknown - Composition events in Mailspring's composer should work as expected. (Typing modifier keys, such as Option-E followed by E to create É) - The composer warn about several more invalid recipient errors correctly (thanks...
1.13.1 Unknown - Visit Preferences > Subscription and click Setup Mailspring ID and sign back in to your Mailspring account. (You should see an alert at launch that will remind you which email address you'd used for your Mailspring ID)...
1.12.0 Unknown - The Windows tray icon styles have been improved, and a new option allows you to opt-out of the red icon style. (Thanks @Phylu) - Mail rules now support filtering based on the "Reply-to" header. (Thanks @Phylu) - The "S...
1.11.0 Unknown - The "Move to Folder" menu action allows you to press Tab or the "→" key to complete the name of the highlighted folder, which makes it easier to complete a path in long folder hierarchies. - Mailspring now properly ide...