Hi @Alberto
my Apple Calendar is linked to my personal email (which is different)
Is this personal email address could login in Teams client? Or is this your Apple calendar account?Based on my research, if you want to synchronize Apple calendar with Microsoft Teams, you could try the following steps:
Step 1: Open your Apple Calendar and go to preferences
Step 2: Click on Account and then click on + and select Microsoft Exchange and click continue as shown in the image below
Step 3: Enter your Name and Email Address(Teams) and Sign In.
Step 4: Once you have signed in you can sync your Mail, Calendar, Remainder etc
And that’s it, your Apple calendar is now synced up with Teams calendar events.
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