Apps to Encrypted Email

Disroot is a Free and Open-Source Software (FOSS) project offering privacy-focused online services, primarily secure email, alongside collaborative tools like cloud storage, document editors, and file sharing, all under a strong commitment to user anonymity and decentralization.

Evolution is a comprehensive personal information manager for the GNOME desktop environment, designed to manage emails, contacts, calendars, and tasks. It provides a unified interface for various communication and organizational needs.

GPGMail is a robust extension for Apple Mail, seamlessly integrating OpenPGP encryption and digital signatures directly into your email workflow for enhanced privacy and security.

iRedMail is a comprehensive, free, and open-source mail server solution designed for ease of deployment and maintenance. It bundles popular components like Postfix, Dovecot, and Roundcube, providing robust email, calendar, and contact management capabilities.

GPGTools is a comprehensive suite of open-source software for macOS that empowers users with the ability to encrypt, decrypt, sign, and verify emails and files using the OpenPGP standard. It seamlessly integrates with Apple Mail and provides a secure gateway for sensitive communications and data handling.

Mailvelope is a free and open-source browser extension for Chrome and Firefox that brings end-to-end encryption to your existing webmail services using the OpenPGP standard. It allows users to encrypt, decrypt, and digitally sign emails directly within their web browser, enhancing privacy and security without requiring a change in email provider.

Kontact is a comprehensive personal information management suite from KDE combining email, contacts, calendar, tasks, and news in one integrated application. It offers robust synchronization options and supports various protocols.

SOGo is a powerful open-source groupware server designed for scalability and simplicity. It provides a comprehensive suite of collaborative features including webmail, calendaring, contact management, and task management, with strong support for standard protocols like CalDAV and CardDAV.

Mutt is a highly configurable, text-based email client for Unix-like systems. It offers powerful features for advanced users who prefer a lightweight and efficient email management experience directly from the command line.

Mailpile is a free and open-source webmail client designed with privacy and encryption as core principles. It offers a self-hostable solution for managing your email with built-in support for PGP encryption and other security features, providing an alternative to traditional webmail services.

Tutanota is a leading open-source email service offering robust end-to-end encryption and enhanced privacy. It provides a secure platform for communication and calendar management, accessible via web and dedicated applications.

Gpg4win is a comprehensive security suite for Windows, enabling robust email and file encryption through the widely-respected GnuPG framework. It provides essential tools for protecting sensitive data and ensuring digital communication privacy.

Kolab Community is a comprehensive, free, and open-source groupware suite designed for collaborative work. It provides integrated email, calendar, contacts, and tasks functionalities, empowering individuals and teams to communicate and manage their data efficiently and with a strong focus on data privacy.