Hello,
We have problem, that some users after migration from Exchange 2010 to 2016 cant see shared calendar of their colleagues.
The problem only affects some people. Deleting the mail profile and creating it didn't help. It only helped to uninstall Office, install and delete the old mail profile. Then they will display the events of their colleagues in the Outlook. When it didn't work, there was an exclamation mark "can't open" next to a colleague's name. If the user shared his calendar and selected in a colleague's message, then the email about accepting the calendar could not be sent he received a message that he could not connect to the mail server or "the folder is empty". Please, I don't know anyone how to run this more efficiently without having to reinstall Office. Owa works fine all the time...
Thank you