Hi
I am trying to configure Microsoft teams for a small setup of 100 people. They don't have Office 365 subscription and willing to try Microsoft Teamsfree edition. The problem is that any user using their corporate email address is unable to login. Every time it says error shown in the screenshot below. The "Signup for Teams" buttons does not help as I am already signed in. I have tried it with different corporate email addresses but no luck. However if I configure a new account with a personal Gmail address, it works fine. What am I missing here?
Thanks