Remove-CalendarEvents (ExchangePowerShell)

This cmdlet cancels meetings in the specified mailbox where the mailbox is the meeting organizer, and the meeting has one or more attendees or resources. It doesn't cancel appointments or meetings without attendees or resources. Because meeting cancellations must be sent out, the mailbox must still be enabled to send mail. You need to be assigned permissions before you can run this cmdlet. Although this article lists all parameters for the cmdlet, you might not have access to some parameters if they aren't included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet.