Export All Mailboxes Calendar permisson to CSV

Below is a script that will export calendar permissions to utf8-formatted csv-file. Works with Onpremise Exchange as well as Exchange Online.

$col = @() $mbxs = get-mailbox -Resultsize unlimited foreach ($mbx in $mbxs) { $mbx $calendarName = Get-MailboxFolderStatistics $mbx.userprincipalname | where-object { $_.FolderType -eq "Calendar" } | select-Object Name $mailboxCalPermissions = get-MailboxFolderPermission ("{0}`:{1}" -f ($mbx.userprincipalname).toString(),$calendarName.Name)|select-object @{Name="PrimaryMailBox";Expression={$mbx.userprincipalname}}, FolderName,User,AccessRights|where-object { $_.AccessRights -ne {None}} $col += $mailboxCalPermissions } $col $col | export-csv -nti -enc utf8 c:\temp\calendarPERM.csv

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