Tuta Mail, Tuta Calendar, & Tuta Drive: Development steps
We launched Tuta Mail in 2014, and our development has not stopped since. Take a look at what we've achieved, Tuta's milestones, and what's expected next.
At Tuta, every member of our development team is very passionate about privacy, security, and open source. We work on Tuta not just because it is a job, but because it is very fulfilling to work on something with meaning: We develop Tuta Mail, Tuta Calendar, and Tuta Drive so that everyone can protect their private data, and with every new user who joins Tuta, we feel like this is another tiny victory against surveillance capitalism.
We understand that we still have a long way to go until we can fully match the product of surveillance capitalists such as Google or Microsoft, but our development progress in recent years has made great leaps and we are already scaling Tuta to new levels!
Achieved milestones
- In 2014 we published the fully encrypted Tutanota email client, iOS and Android apps.
- In 2015 we introduced the first paid features, such as custom domain support.
- In 2017 we published a completely new version of Tutanota with better speed & design.
- In 2018 we published the Tutanota desktop clients for Linux, Mac OS, and Windows in beta.
- In 2019 we published the beta version of the encrypted calendar and started compressing emails to give you more storage space.
- In 2021 we pushed the Tutanota desktop clients out of beta after an extensive security review.
- In 2021 we completed a first prototype for updating our encryption to post-quantum secure algorithms.
- In 2022 we added offline mode so that you can access your encrypted mailbox, calendar, and contacts also when not connected to the internet.
- In 2023 we rebranded Tutanota to Tuta and can now offer a nice, short domain that you can use to get YourName@tuta.com.
- Since 2023 we offer unlimited email address for your custom domain!
- In 2024 we launched quantum-safe encryption for email - a world first!
- In 2024 we opened Tuta’s second office in Munich.
- In 2025 we implemented key verification.
- In 2025 Tuta Mail and Calendar became up to 10x faster thanks to FastSync.
Major achievements in 2026
- In March we rolled out new client-side spam filtering and completed the rollout of TutaCrypt to all Tuta accounts.
- In April Tuta Drive was officially launched in closed beta.
- In June Tuta joined Euro-office.
- In July we released Tuta’s One-Click Migration in closed beta.
- In August the University of Wuppertal released a scientific paper formally verifying TutaCrypt - our hybrid PQC protocol.
Best in class security
Here are the most important features that make Tuta’s security unrivaled:
- End-to-end encrypted mailbox
- End-to-end encrypted calendar
- End-to-end encrypted address book
- End-to-end encrypted drive
- Automatic end-to-end encrypted emails between users
- End-to-end encrypted emails to any email address via a password
- TutaCrypt - our hybrid post-quantum cryptography protocol protects all Tuta users
- Key verification
- Secure password reset that gives us absolutely no access
- Full-text search of encrypted data executed locally
- TLS with support of PFS, DMARC, DKIM, DNSSEC, MTA-STS
- GDPR-compliant email service with built-in encryption
- Maximum login protection with 2FA
Our goal with Tuta is to make security easily accessible to everyone. That’s why we strongly focus on usability and convenience. The entire encryption process runs in the background, and you can use Tuta Mail as easily as any email service. You can use Tuta with absolute certainty that you will never pay with your data.
Some features in Tuta are only available to paying users. With every upgrade, you support us and our mission to bring privacy to the world! Thank you.
Implemented Features
Tuta Mail
- Send / receive end-to-end encrypted emails via webmail
- Automatic encryption of subject, body, and attachments
- External recipients can answer with an encrypted email (password exchange needed)
- Send / receive ‘normal’ emails, but stored encrypted
- Delete emails physically
- Apps for Android & iOS
- Folder management
- 31 languages available, more will come
- Choose from several free domains
- Up-to-date SSL-configuration, plus support of PFS
- Published Tutanota client code as open source
- Prevent automatic image loading to protect your privacy
- Spam protection
- Custom domain support with catch-all option and unlimited alias email addresses
- Business plans
- Adding aliases
- Enabling export of emails
- Added Signatures
- Drafts
- Inbox rules / filter
- Multiple email selection
- Adding storage
- Adding more aliases
- Combining multiple Tutanota accounts
- Improved design & speed
- Two-factor authentication (2FA)
- Full-text search
- Whitelabel
- Update Android app (speed, design, 2FA, search, contact import)
- Add Android app to F-Droid without Google Push to make Tutanota the best for open source emails
- Update iOS app (speed, design, 2FA, search, contact import)
- Secure password reset
- Push new client out of beta
- Desktop clients (Mac OS, Linux, Windows)
- HTML writing tools
- Show unread emails per folder
- Add Let’s Encrypt for whitelabel domains
- Add the encrypted contact form Secure Connect
- Became a green email service
- Customize notification email
- Add DKIM support for custom domains
- Add U2F support for Firefox
- Add double-tap to zoom to apps
- Activated compression of emails
- Improve protection against phishing emails
- Buy gift cards
- Add out of office notifications
- Allow-list for trusted senders to load images automatically
- Spell check added to the desktop clients
- Push desktop clients out of beta
- Add Pin & biometrics unlock to apps
- Add U2F support to the desktop clients
- Enable offline usage
- Sender name per alias
- Add share-to feature for iOS app
- Support FIDO U2F for mobile apps
- Add email subfolders
- Enable sending group emails
- Enable shared email accounts
- Unlimited email addresses for custom domains
- Introduced four-letter com domain: Tuta.com
- Better calendar navigation
- Upgrade the Tuta encryption algorithms from AES 128 to AES 256
- Tuta launched post-quantum cryptography for email
- Enable import of emails
- Single click email export
- Preview in email notifications (iOS & Android), including quick actions like delete or archive an email
- Much improved search feature on mobile apps and desktop clients
- Introduced labels
- Emails grouped by conversation
- Change your primary email address
- Easier actions
- Resize columns in the Tuta client
- Auto-save drafts
- iOS badge counter
- Drag & drop to nest folders
- Set Tuta Mail as the default mail app on iOS
- Tuta Mail available as Thunderbird add-on
- Faster search thanks to full search indexing locally on the user’s device
- Schedule send
- Undo send
- Improved inbox rules
- Improved sync
- Expandable folders
- Action to archive an email in notifications
- Nested labels and mail counters on labels
- Collapsible shared mailboxes
- Email aliases in shared mailboxes
Tuta Calendar
- Free encrypted calendar
- Calendar invites via iCal
- Advanced calendar event repeat rules
- Added search functionality to the calendar
- Tuta Calendar app launched, also on F-Droid
- Calendar widget on Android
- Calendar widget on iOS
- Advanced repeat rules
- Three-day view
- Calendar name in event preview
- Duplicate events
- Partially edit or delete event series
- More organised invite emails
- Multi-day view in the widget
- Tuta Calendar available as Thunderbird add-on
- Pending Invitations in Calendar
- Default calendar view,
- Improvements to the reliability of Tuta Calendar notifications
- Time zones for events
Tuta Contacts
- Encrypted storing of all contacts
- Contact import
- Tuta apps support full contact integration and contact sync
Tuta Drive
- Tuta Drive released in closed beta with invite only
Upcoming Features
- Availability of guests in Tuta Calendar
- Inbox rules for labels in Tuta Mail
- Release of Tuta Drive in public beta
Please check the Tuta Roadmap to see what we are currently working on.
