MailspringLinux
vs
Windows MailWindows
Mailspring as a Linux alternative to Windows Mail
Updated
Our verdict
Mailspring is a strong replacement for Windows Mail if you value speed and privacy over built-in calendar integration. It handles multiple IMAP/POP3 accounts efficiently with a C++ engine that keeps resource usage low. However, it lacks native calendar features, so you must pair it with a separate iCal client. The interface is clean and non-intrusive, suitable for users who want a fast, local-first email experience without cloud dependencies. It is best for those willing to manage two apps for mail and calendar, rather than one unified suite.
- License
- GPL-3.0+
- Price
- Free
- Latest version
- 1.26.1 (October 20, 2026)
- Rating
- —
What works the same
- Supports multiple email accounts via IMAP, POP3, and SMTP
- Provides a clean, lightweight interface focused on email
- Includes robust search capabilities across all messages
- Runs locally without requiring cloud-based credential storage
What is different
- Lacks built-in calendar or iCal integration, requiring a separate app
- Offers advanced features like Snooze, Send Later, and Mail Rules
- Uses a C++ sync engine for lower RAM and CPU usage
- Includes optional paid Pro features for analytics and tracking
Opening your Windows Mail files
Mailspring does not directly open Windows Mail .eml files as a native database format, but it can import them if converted to a standard format or if you drag and drop .eml files into the application. Since Windows Mail stores data in proprietary EDB files, direct folder migration is not supported. You will likely need to export messages from Windows Mail to .eml or .ics formats before importing them into Mailspring or another Linux client.
Switching from Windows Mail to Mailspring, step by step
- Export all emails from Windows Mail to .eml files
- Install Mailspring via Flathub or your package manager
- Configure your email accounts using IMAP or POP3 settings
- Drag and drop .eml files into Mailspring to import messages
- Set up a separate iCal client for calendar needs
Key features of Mailspring
- C++ sync engine based on Mailcore2
- Unified Inbox for multiple accounts
- Snooze and Send Later functionality
- Mail Rules and Templates
- Local-first architecture (no cloud credentials)
- Low RAM and CPU usage
- Mailspring Pro adds link tracking and analytics
How to install Mailspring on Linux
flatpak install flathub com.getmailspring.MailspringFrequently asked questions
Does Mailspring have a built-in calendar?
No, Mailspring does not include calendar functionality. You need to use a separate application like Thunderbird or Evolution for iCal support.
Is Mailspring free to use?
The core email client is free and open-source under GPL-3.0+. Mailspring Pro is a paid subscription that adds analytics and tracking features.
Can I import emails from Windows Mail directly?
Direct import of Windows Mail's proprietary database is not supported. You must export emails to .eml files first, then import them into Mailspring.
4 other alternatives to Windows Mail
ThunderbirdThunderbird is a free, open‑source email, newsfeed, chat, and calendar client.Open sourceFreeFlatpakThunderbird vs Windows Mail
EvolutionEvolution is a full‑featured personal information manager that combines email, calendar, contacts and tasks…Open sourceFreeFlatpakEvolution vs Windows Mail
Claws MailClaws Mail is a lightweight, fast GTK‑based email client for Linux.Open sourceFreeFlatpakClaws Mail vs Windows Mail
GearyGeary is a GNOME‑based email client for Linux that lets you send, receive, and organize mail in conversation…Open sourceFreeFlatpakGeary vs Windows Mail