Email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices
License: GPL-3.0
Web page: https://tuta.com
Source code: https://github.com/tutao/tutanota
Become a sponsor: https://tuta.com/community/#donate
Translate: https://tuta.com/blog/tutanota-translation-project
Report the bug: https://github.com/tutao/tutanota/issues