Tutanota is an end-to-end encrypted email app and a freemium secure email service.[3][unreliable source?][4] The service is advertisement-free; it relies on donations and premium subscriptions.[5][non-primary source needed][6][7] As of March 2017, Tutanota's owners claimed to have over 2 million users of the product.[8]

Tutanota service
Tutanota logo.svg
Tutanota screenshot.png
Screenshot of Tutanota
Type of site
Available inMultilingual
OwnerTutao GmbH
UsersOver 2 million
Current statusOnline
Tutanota client app
Developer(s)Tutao GmbH
Stable release
3.101.1[2] / 23 September 2022; 2 months ago (23 September 2022)
Written inTypeScript and JavaScript
Operating systemMicrosoft Windows, macOS, Linux, iOS, Android
Platformx86-64, iOS, Android
LicenseGNU GPL v3


Tutanota is derived from Latin and contains the words "tuta" and "nota" which means "secure message".[9] Tutao GmbH was founded in 2011 in Hannover, Germany.[10][11]

The goal of the developers for Tutanota is to fight for email privacy. Their vision gained even more importance, when Edward Snowden revealed NSA's mass surveillance programs like XKeyscore in July 2013.[12][unreliable source?]

Since 2014, the software has been open-sourced and can be reviewed by outsiders on GitHub.[13][14]

In August 2018, Tutanota became the first email service provider to release their app on F-Droid, removing all dependence on proprietary code. This was part of a full remake of the app, which removed dependence on GCM for notifications by replacing it with SSE. The new app also enabled search, 2FA and got a new reworked user interface.[15] [16][non-primary source needed]

In November 2020, the Cologne court ordered monitoring of a single Tutanota account that had been used for an extortion attempt. The monitoring function should only apply to future unencrypted emails this account receives and it will not affect emails previously received.[17][18]


Tutanota offers end-to-end encryption for emails sent from one Tutanota user to another. Tutanota also encrypts all emails and contacts stored in their servers,[19][unreliable source] "except for email addresses of users as well as senders and recipients of emails"[20] and "date of an email sent or received".[21] Emails sent non-encrypted, are encrypted only between the Tutanota user and Tutanota servers, and then sent unencrypted to destination user.[21]

Tutanota uses a standardized, hybrid method consisting of a symmetrical and an asymmetrical algorithm - AES with a length of 128 bit and RSA with 2048 bit.[22][23][24] To external recipients who do not use Tutanota a notification is sent with a link to a temporary Tutanota account. After entering a previously exchanged password, the recipient can read the message and reply end-to-end encrypted.[25][non-primary source needed]

Account deletionEdit

Tutanota deletes free accounts that have not been logged into for 6 months. According to Tutanota, this happens because of security reasons and for keeping the service free.[26]

Tutanota has also been GDPR compliant since 2018.[27][28][29]


Tutanota has been blocked in Egypt since October 2019, and blocked in Russia since February 2020 for unknown reasons (although believed to be tied to recent actions against services operating outside of the country, especially those that involve encrypted communications).[30]

Though Tutanota has been blocked in these countries, users still access its service via Tor or VPN.[31]

See alsoEdit


  1. ^ "Huge community support enabled us to employ our 14th team member: Welcome Jonas!". Tutanota. 18 November 2020. Retrieved 28 December 2020.
  2. ^ "Release 3.101.1". 23 September 2022. Retrieved 25 September 2022.
  3. ^ "'NSA-proof' Encrypted Email Service Tutanota Launches". infosecurity-magazine.com. Reed Exhibitions Ltd. 3 July 2014. Retrieved 4 November 2015.
  4. ^ Natasha, Lomas (18 March 2015). "Tutanota, An Open Source Encrypted Gmail Alternative, Heads Out Of Beta". techcrunch.com. TechCrunch. Retrieved 4 November 2015.
  5. ^ "Celebrating One Year of Tutanota Premium - Thank You for Your Support!". Tutanota. 25 July 2016. Retrieved 14 March 2017.
  6. ^ "Tutanota prices". Tutanota. Retrieved 2022-09-25.
  7. ^ u/Tutanota on Reddit (2019-11-14). "How does Tutanota make enough income to sustain their services?". r/tutanota. Retrieved 2022-09-25 – via Reddit.
  8. ^ "Reviews of Secure Mail Service Tutanota". Tutanota. Retrieved 2017-07-24.
  9. ^ "What does the name "Tutanota" stand for?". Archived from the original on 2016-07-30. Retrieved 2016-08-06.
  10. ^ "5 of the Best Secure Email Services for Better Privacy". maketecheasier. 23 October 2015. Retrieved 13 March 2017.
  11. ^ "Amtsgericht Hannover Aktenzeichen: HRB 208014" (in German). German Company Register. 2012-01-18. Retrieved 2022-09-22. Gesellschaftsvertrag vom 25.11.2011
  12. ^ "Encrypted Email: The Privacy Alternative to Gmail". StickyPassword. 20 October 2015. Archived from the original on 13 March 2017. Retrieved 13 March 2017.
  13. ^ "Secure Mail Service Tutanota Celebrates One Year Open Source". Tutanota. 2 September 2015. Retrieved 13 March 2017.
  14. ^ "Tutao GmbH". GitHub. Retrieved 2020-07-17.
  15. ^ Ivan (3 September 2018). "How Tutanota replaced Google's FCM with their own notification system". F-Droid. Retrieved 28 November 2018.
  16. ^ "Tutanota Becomes the Go-to Open Source Email Service with an App on F-Droid". Tutanota. 14 August 2018. Archived from the original on 13 August 2018. Retrieved 28 November 2018.
  17. ^ "German secure email provider Tutanota forced to monitor an account, after regional court ruling". msn.com. 8 December 2020. Retrieved 19 January 2021.
  18. ^ Moody, Glyn (9 Dec 2020). "German Court Orders Encrypted Email Service Tutanota To Backdoor One Account". techdirt. Retrieved 6 September 2021.
  19. ^ "Secure mail for everybody!". Retrieved 13 March 2017.
  20. ^ "Tutanota Privacy Statement". Tutanota. Retrieved 2022-09-25.
  21. ^ a b "Encrypted email, free & easy". Archived from the original on 12 April 2020. Retrieved 14 November 2020.
  22. ^ "What encryption algorithms does Tutanota use?". Archived from the original on 22 March 2015. Retrieved 17 August 2017.
  23. ^ "Security details about the encrypted email service Tutanota". Tutanota. Retrieved 2022-09-25. Tutanota uses symmetric (AES 128) and asymmetric encryption (AES 128 / RSA 2048) to encrypt emails end-to-end.
  24. ^ Bahar, Zen (2021-12-29). "Tutanota vs. ProtonMail: which one is better?". NordVPN. Retrieved 2022-09-22. Currently, Tutanota and Protonmail are [...] both offering end-to-end encryption.
  25. ^ "Tutanota FAQ". Tutanota. Retrieved 2022-09-24.
  26. ^ "Tutanota FAQ Inactive-accounts". Tutanota. Retrieved 2022-09-06.
  27. ^ "Tutanota FAQ". Tutanota. Retrieved 2022-09-24.
  28. ^ "Press Inquiries & Media Kit". Tutanota. Retrieved 2022-09-24.
  29. ^ "GDPR-compliant email service: Tutanota offers easy email encryption for all businesses". Tutanota. Retrieved 2022-09-24.
  30. ^ Spadafora, Anthony 18 (18 February 2020). "Tutanota secure email service blocked in Russia". TechRadar. Retrieved 2020-02-22.
  31. ^ "Tutanota is blocked in Russia in an attempt to stop encrypted communication". 18 February 2020. Retrieved 2022-03-01.

External linksEdit