Additional features, settings, or issues not covered by specific Microsoft Teams categories
We did not receive any communication from Microsoft, I just discovered the issue while connecting to Teams to update a customer's project planning.
I have to move my mailbox to the cloud to be able to read my data again... Thanks Microsoft but this is another good reason to get away from Microsoft 365. Poor communication, poor support but increasing price.
I only used Teams to fill theses data, with no relation with my on prem Exchange.
Maybe Microsoft 365 team should look at the Google's way to communicate about discontinued features.