proton-mail ☆
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Description:
Client for Proton Mail and Proton Calendar
Type: Cask  |  Latest Version: 1.13.3@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  @protonprivacy  |  formulae.brew.sh
Category: Security
Tags: proton email encryption privacy calendar security
Install: brew install --cask proton-mail
About:
Proton Mail is a secure desktop client for accessing Proton Mail and Proton Calendar services. It provides a native application experience with enhanced privacy features, including end-to-end encryption and zero-access architecture. The client offers offline access and seamless integration with your desktop environment.
Key Features:
  • End-to-end encryption for all communications
  • Native desktop interface with offline support
  • Integrated Proton Calendar access
  • Zero-access architecture ensuring maximum privacy
  • Cross-platform availability
Use Cases:
  • Secure email communication with privacy-focused individuals or organizations
  • Managing encrypted calendar events and schedules offline
  • Accessing Proton services without a web browser
Alternatives:
  • Thunderbird with Proton Bridge – Requires Proton Bridge; more complex setup but highly customizable
  • Canary Mail – Supports multiple providers with strong encryption but not Proton-native
  • Webmail – Browser-based access; no installation required but lacks native integration
Version History
Detected Version Rev Change Commit
Jun 22, 2026 12:01pm 1.13.3 0 VERSION_BUMP fceb4733
Feb 9, 2026 1:37pm 1.12.1 0 VERSION_BUMP beed46d8
Sep 15, 2025 12:47pm 1.9.0 0 VERSION_BUMP 3fbe6635
Sep 11, 2025 4:38pm 1.9.0 0 VERSION_BUMP d1bf6348
Aug 8, 2024 12:55pm 1.0.6 0 VERSION_BUMP 14258fc5
Jul 9, 2024 6:50pm 1.0.5 0 VERSION_BUMP a18f96c8
Jun 25, 2024 3:51pm 1.0.4 0 VERSION_BUMP 74482384
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