My goal is to change the Default mailbox Calendar AccessRights to be 'Reviewer' instead of 'AvailabilityOnly' for all newly created Office 365 users.
After searching online and studying Microsoft's docs, I have arrived the following command:
Get-Mailbox | ForEach-Object {Set-MailboxFolderPermission $_”:\calendar” -User Default -AccessRights Reviewer}
This command however only applies to current mailboxes, not ones that will be created in the future.
Thank you in advance for your help.