Outlook 2025 Calendar Permissions Greyed Out Mac. To resolve this issue, in outlook 2016 for mac, click on outlook, then preferences, then general. I've been switched over to the new outlook for mac users but when i create a new invitation in the calendar the 'attendee options' button is greyed out so i cannot.
For business users there is higher chance that the admin has disabled the. I have a user who cannot open a shared calendar nor set calendar permissions.