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Mailspring: Cross-platform, fast, open source mail client
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux. - Foundry376/Mailspring
Mailspring's UI is open source (GPLv3) and written in TypeScript with Electron and React- it's built on a plugin architecture and was designed to be easy to extend. Mailspring comes packed with powerful features like Unified Inbox, Snooze, Send Later, Mail Rules, Templates and more. Mailspring Pro, which you can unlock with a monthly subscription, adds even more features for people who send a ton of email: link tracking, read receipts, mailbox analytics, contact and company profiles.
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