We have listed 4 alternatives for Tutanota which have similar features like
Tutanota
including commercial, freemium, free and open source Mac OS X
alternatives.
Mailvelope is a free software for end-to-end encryption of email traffic inside of a web browser (Firefox or Chromium) that integrates itself into existing we…
Enigmail is a data encryption and decryption extension for Mozilla Thunderbird and the SeaMonkey internet suite that provides OpenPGP public key e-mail encryp…