Tutanota cries antitrust foul over Microsoft Teams blocking sign-ups for its email users

[securitybreach]

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Microsoft is being called out for blocking users of the end-to-end encrypted email service Tutanota from registering an account with its cloud-based collaboration platform, Teams, if they try to do that using a Tutanota email address.

 

The problem, which has been going on unrectified for some time — with an initial complaint raised with Microsoft support back in January 2021 — appears to have arisen because it treats Tutanota as a corporate email, rather than what it actually is (and has always been), an email service.

 

This misclassification means that when a Tutanota email user tries to use this email address to register an account with Teams they get a classic ‘computer says no’ response — with the interface blocking the registration and suggesting the person “contact your admin or try a different email”.

 

“When the first Tutanota user registered a Teams account, they were assigned the domain. That’s why now everyone who logs in with Tutanota address should report to their ‘admin’ (see screenshot),” explains a spokeswoman for Tutanota when asked why they think this is happening.....

 

https://techcrunch.com/2022/08/04/tutanota-cries-antitrust-foul-over-microsoft-teams-blocking-sign-ups-for-its-email-users/