Mailspring
Mailspring is a beautiful, fast, and fully open source email client for Mac, Windows, and Linux.
What’s new
Verified 4h ago## 1.23.0 (7/19/2026)
Features:
- Added Office 365 shared mailbox support. (#2763) Thanks @Kevin-Hamilton!
- Added the ability to export folders to mbox files. (#2765) Thanks @Kevin-Hamilton!
- Added an option to count unread messages across all accounts. (#2779) Thanks @WebDevBar!
- Added a toggle for email render mode. (#2737) Thanks @AidanWarner97!
- Added an MCP server (off by default) that lets local agents interact with mail.
- On Linux, added a taskbar unread badge for KDE and other non-Unity desktops. (#2756) Thanks @WebDevBar!
Bug Fixes:
- Fixed a composer crash on quoted emails with inline images. (#2776)
- Fixed a composer crash when grammar-check decorations apply mid-composition. (#2775)
- Fixed missing Slate attributes on the IMAGE_TYPE fallback node. (#2774)
- Fixed a composer cut crash and suppressed Sentry noise from third-party plugins. (#2755)
- Fixed a crash when dragging threads to the sidebar after a thread is deleted. (#2760)
- Fixed a crash in `EventRSVPTask` when attendee ICS data goes stale. (#2770)
- Fixed a crash in the translation plugin when the iframe `contentDocument` is not yet loaded. (#2752)
- Fixed an onboarding crash when
Full release notes →
Features:
- Added Office 365 shared mailbox support. (#2763) Thanks @Kevin-Hamilton!
- Added the ability to export folders to mbox files. (#2765) Thanks @Kevin-Hamilton!
- Added an option to count unread messages across all accounts. (#2779) Thanks @WebDevBar!
- Added a toggle for email render mode. (#2737) Thanks @AidanWarner97!
- Added an MCP server (off by default) that lets local agents interact with mail.
- On Linux, added a taskbar unread badge for KDE and other non-Unity desktops. (#2756) Thanks @WebDevBar!
Bug Fixes:
- Fixed a composer crash on quoted emails with inline images. (#2776)
- Fixed a composer crash when grammar-check decorations apply mid-composition. (#2775)
- Fixed missing Slate attributes on the IMAGE_TYPE fallback node. (#2774)
- Fixed a composer cut crash and suppressed Sentry noise from third-party plugins. (#2755)
- Fixed a crash when dragging threads to the sidebar after a thread is deleted. (#2760)
- Fixed a crash in `EventRSVPTask` when attendee ICS data goes stale. (#2770)
- Fixed a crash in the translation plugin when the iframe `contentDocument` is not yet loaded. (#2752)
- Fixed an onboarding crash when
Official download sources
Each source below has been validated against an approved publisher domain and editorially approved. Links route through a safe internal redirect.
Verified checksum File integrity
No threats detected — 0/58 engines VirusTotal ↗Verify your downloaded file matches the publisher’s official hash before installing.
SHA-256
0b4e511fe881f8202cc75f0c461c7bdc666f8d87b25dae6137740384e2e00f76
Install with one command
Prefer a package manager? Paste this into Windows Terminal:
winget
winget install --id Foundry376.Mailspring -e
scoop
scoop bucket add extras; scoop install mailspring
choco
choco install mailspring -y
Platforms: Windows
Mailspring compared
A factual, side-by-side overview based only on verified data.
| Attribute | Mailspring This page | Telegram | FileZilla® | WhatsApp Desktop |
|---|---|---|---|---|
| Developer | Foundry 376 | Telegram | FileZilla Project | Meta Platforms, Inc. |
| Category | Communication | Communication | Communication | Communication |
| Platforms | Windows | Android, iOS, Linux, macOS, Web, Windows | Windows | macOS, Windows |
| Official sources | 1 | 4 | 1 | 2 |
| Verified official | ✓ | ✓ | ✓ | ✓ |
Alternatives to Mailspring
Verified, official downloads in the same category.
Frequently asked questions
Where can I download Mailspring safely?
Use the official sources listed on this page. Each link is validated against an approved publisher domain and routes through a safe internal redirect — no third-party or bundled installers.
Which platforms does Mailspring support?
Mailspring is available for Windows.
Is this the official Mailspring download?
Yes. Every source shown here is validated against the publisher’s approved domain and editorially reviewed before being published.
Who develops Mailspring?
Mailspring is developed by Foundry 376.
What are the best alternatives to Mailspring?
Popular alternatives include FileZilla®, EmailEngine and RSS Guard. See the comparison above for a side-by-side overview.
Reviews & ratings
No reviews yet — be the first to share your experience.
Write a review