Report on public folder permissions and usage

As for permissions ,  This script should get you what you are looking for :

reference : http://itstuffilearnedtoday.blogspot.com/2015/08/powershell-script-to-report-all.html

######### BEGIN SCRIPT #########

Write-Host -Foreground Red "This script must be run from the Exchange Management Shell!"
$Init = Read-Host "Press Enter to Continue"

#Get all of the Public Folders
$PublicFolders = get-publicfolder -recurse

#Create a new array to hold the data
$Permissions = @()

Foreach ($Folder in $PublicFolders){
 #Full path and name of the public folder
 [string]$Foldername = ($Folder.ParentPath) + '\' + ($Folder.Name)
 
 #Get the permissions of the public Folder
 $FolderPermissions = Get-PublicFolderClientPermission $Folder
 
 Foreach ($Entry in $Folderpermissions){
  #If the User identity in NOT Null
  If (($Entry.User).ActiveDirectoryIdentity){
   #Get the User Identity of the permission
   $UserIdentity = (($Entry.User).ActiveDirectoryIdentity).ToString()
   
   #Create a new object to hold the data
   $PermissionItem = New-Object System.Object
   
   #Put the Full path and name of the public folder into the object
   $PermissionItem | Add-Member -type NoteProperty -name Folder -value $FolderName
   
   #Put the User Identity of the permission into the object
   $PermissionItem | Add-Member -type NoteProperty -name User -value ($Entry.User).ExchangeAddressBookDisplayName
   
   #Had to get funky here, and the Accessrights are an array and not readily enumaratable (is that even a word?)
   Foreach ($Value in ($Entry.AccessRights)){$Rights = (($Value.Permission).ToString())}
   
   #Add the user's rights to the object
   $PermissionItem | Add-Member -type NoteProperty -name Rights -value $Rights
   
   #Add the object into the array
   $Permissions += $PermissionItem
  } #End If
 } #End Foreach $Entry
} #End Foreach $Folder

#Export unique user values to a text document
$Permissions | select user -unique | sort user | out-file "C:\temp\UniquePublicFolderPermissions.txt"

#Export the permissions for all folders to CSV
$Permissions | Export-CSV "C:\temp\AllPublicFolderPemissions.csv" -NoTypeInformation

######### END SCRIPT #########

Select allOpen in new window

This is what, I run to pull the report.

Get-PublicFolder –identity “\PF NAME” -Recurse -ResultSize Unlimited | Get-PublicFolderClientPermission | Select Identity,User,{$_.AccessRights} | Export-CSV "c:\PF.csv"