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Encrypted Email Services

Modern email clients make professional and personal communication more convenient than ever before. That being said, some of the most popular email clients, such as Gmail, aren’t as secure as some would like. That’s where the email service providers on this page, such as ProtonMail, come in.

  1. Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.
  2. Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps.

  3. Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.
    • FreeOpen Source
    • Mac
    • Linux
    • Xfce
    • OpenPGP
    GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.
  4. Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.
  5. Web- and IMAP-based email service. 2GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.
  6. Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
  7. There’s big news attached. The best way to manage email on a Mac, according to Apple.
  8. offers a secure e-mail account for home and business use. The domain name,, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.
  9. We believe that Internet privacy is an absolute and definitive right. Online privacy matters and is just as important as offline privacy. Some people say that the loss of privacy is the price we must pay for security.
    • FreeOpen Source
    • Online
    • Self-Hosted
    • Nextcloud
    • JavaScript
    • PHP
    • Cloudron
    Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make RainLoop Webmail a perfect choice for your email solution.
  10. Bring your workspace together into one unified app. It’s everything your team has been looking for in a productivity and messaging app, but easier, and all with your email. Welcome to the shortest path to done.
  11. Vivaldi Mail is a free email service with no ads and no strings attached developed by Vivaldi Technologies.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • GnuPG
    • Thunderbird
    • SeaMonkey
    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .