$UserCredential = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection
Import-PSSession $Session
foreach($user in Get-Mailbox -RecipientTypeDetails UserMailbox) {
$cal = $user.alias+":\Calendar"
Set-MailboxFolderPermission -Identity $cal -User Default -AccessRights LimitedDetails
}
Categories:
Exchange,
Office365,
PowerShell