Giving Reviewer Rights to a calendar of a bunch of Exchange Mailboxes

To give calendar reviewer rights to a user called nosey1 to bunch of mailboxes, use this one liner below. you will need to add their email aliases

to a text file.

Get-content C:scriptsCalperm.txt | ForEach-Object {Add-MailboxFolderPermission $_”:Calendar” -User nosey1 -AccessRights Reviewer}