Tutanota is a secure email service focused on privacy and encryption. It offers end-to-end encryption for emails and attachments, ensuring that only the intended recipients can read the content. Tutanota is designed to be user-friendly and provides features like a calendar, encrypted contact storage, and spam protection. It is open-source and offers free and paid plans, with the option to use custom domains. Tutanota is available on the web, and also has apps for iOS, Android, Windows,...