Mailspring
per month on a yearly plan, checked November 1, 2026
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Open-source email on Linux
MIT-licensed client with a free tier for IMAP and Office 365 accounts. Pro costs $8 a month and lifts limits on snooze, reminders and send later.
| Billed monthly | 8 USD/mo |
|---|---|
| Free tier | Core client free; limits on snooze, reminders, send later |
| Platforms | Windows, Mac, Linux |
Close in price
| Product | Best for | Per month, yearly plan | Checked | Link |
|---|---|---|---|---|
| Mimestream | Gmail on a native Mac app | $4.17 | November 1, 2026 | Visit |
| Canary Mail | Encrypted, AI-assisted mail on Apple | $3 | November 1, 2026 | Visit |
| Thunderbird | Free, open-source desktop email | Free | November 1, 2026 | Visit |