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Last updated: 2017-11-11

A new PowerShell script to export all mailbox folder permissions has been published to TechNet Gallery and GitHub.

This script exports all mailbox folder permissions for mailboxes of type "UserMailbox". The permissions are exported to a local CSV file.

CSV Eample

"Mustermann, Max (mmustermann)";"Tasks";"Doe, John";"Editor"
"Mustermann, Max (mmustermann)";"Calendar";"Doe, John";"Editor"
"Mustermann, Max (mmustermann)";"Inbox";"Doe, John";"Reviewer"
"Mustermann, Max (mmustermann)";"Custom Folder";"Doe, John";"Reviewer"

This script is based on Mr Tony Redmonds blog post


.\Get-MailboxPermissionsReport.ps1 -CsvFileName export.csv



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Last updated: 2019-06-14



This script exports all mailbox folder permissions for mailboxes of the type UserMailbox. This is useful for documentation purposes prior to migration.

The permissions are exported to a local CSV file.

The script is intended to run from within an active Exchange Server 2013/2016/2019 Management Shell session.


Gather mailbox folder permission data for a large number of mailboxes takes some time.


# Export mailbox permissions to export.csv

.\Get-MailboxPermissionsReport-ps1 -CsvFileName export.csv

Version History

  • 1.0, Initial community release
  • 1.1, Minor PowerShell fixes
  • 1.2, Minor PowerShell fixes
  • 1.3, MailboxId parameter added
  • 1.4, Fix to ensure mailbox uniqueness using the alias property


Additional Credits

The script is based on Mr. Tony Redmonds blog post 


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When you change AutoDiscover settings for users, it can take up to 2 hours until the cached data is invalidated and the new AutoD configuration is sent as a response to new AutoD request.

You have to force a service and a application pool restart to activate your configuration changes immediately:

  • Service: MSExchangeServiceHost
  • Application Pool: MSExchangeAutodiscoverAppPool

These restarts need to be performed on each modern Exchange Server (2013/2016/2019) in your infrastructure serving AutoDiscover requests.

Use the following two PowerShell cmdlets to simplify this task:

Get-ExchangeServer | ? { $_.AdminDisplayVersion -like '*15.*'} | % { Invoke-Command -ComputerName $_.Name -ScriptBlock {Restart-WebAppPool MSExchangeAutodiscoverAppPool } }

Get-ExchangeServer | ? { $_.AdminDisplayVersion -like '*15.*'} | % { Invoke-Command -ComputerName $_.Name -ScriptBlock {Restart-Service MSExchangeServiceHost } }


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Last updated: 2020-09-05

Exchange Server 2007 Exchange Server 2010 Description

This script will generate a report for Exchange 2007/2010 Public Folder Replication. It returns general information, such as the total number of public folders, total items in all public folders, the total size of all items, the top 20 largest folders, and more. Additionally, it lists each Public Folder and the replication status on each server.

By default, this script will scan the entire Exchange environment in the current domain and all public folders. This can be limited by using the -ComputerName and -FolderPath parameters.

This is an updated version of the Mike Walker ( to support non-ASCII environments.



Generate a public folder generation report for public folder \MYPUBLICFOLDER having replicas on servers MXSRV01, MXSRV02, MXSRV03

Get-PublicFolderReplicationReport.ps1 -ComputerName MXSRV01,MXSRV02,MXSRV03 -FolderPath "\MYPUBLICFOLDER" -Recurse -Subject "Public Folder Environment Report" -AsHTML -To -From -SmtpServer -SendEmail

Example report

Example report


If you want to simplify the report generation, create an additional script: Run-PublicFolderReplicationReport.ps1

    [string]$publicFolderPath = ''

# Variables

# Custom label for email subject
$label = 'Exchange 2007'
$recipients = ''
$sender = ''

# array of public folder servers to query
$publicFolderServers = @('EX2007-01','EX2010-01')

# SMTP server to relay mail
$smtpServer = ''

# Used to trigger a dedicated report for \GrFolder1\Folder1, \GrFolder1\Folder2
$granularRootFolder = @()  # @("\Folder01")
$subPath = ''

# Check for granular folders, Added 2016-01-19
if($granularRootFolder -contains $publicFolderPath) {
    $subPath = $publicFolderPath
    $publicFolderPath = ''

if($publicFolderPath -ne '') {
    Write-Host "Generating Public Folder reports for $($publicFolderPath)"
    # Generate report for a single public folder | Change COMPUTERNAME attribute for servers to analyse
    .\Get-PublicFolderReplicationReport.ps1 -ComputerName $publicFolderServers -FolderPath $publicFolderPath -Recurse -Subject "Public Folder Environment Report [$($publicFolderPath)] [$($label)]" -AsHTML -To $recipients -From $sender -SmtpServer $smtpServer -SendEmail
else {
    if($subPath -ne '') {
        $publicFolderPath = $subPath
    else {
        $publicFolderPath = '\'
    if($granularRootFolder.Count -ne 0) {
        Write-Host 'Following root folders will be excluded when using "\":'
    Write-Host "Generating Public Folder reports for all folders in $($publicFolderPath)"
    $folders = Get-PublicFolder $publicFolderPath -GetChildren 

    # Generate a single report for each folder in root
    $folderCount = ($folders | Measure-Object).Count
    $pfCount = 1
    foreach($pf in $folders) {
        # Check, if folder is in list of granular folders
        if($granularRootFolder -notcontains $pf) {
            if($pf.ParentPath -eq '\') {
                $name = "$($pf.ParentPath)$($pf.Name)"
            else {
                $name = "$($pf.ParentPath)\$($pf.Name)"

            $activity = 'Generating Stats'
            $status = "Fetching $($name)"
            Write-Progress -Activity $activity -Status $status -PercentComplete (($pfCount/$folderCount)*100)
            .\Get-PublicFolderReplicationReport.ps1 -ComputerName $publicFolderServers -FolderPath $name -Recurse -Subject "Public Folder Environment Report [$($name)] [$($label)]" -AsHTML -To $recipients -From $sender -SmtpServer $smtpServer -SendEmail

Use the $granularRootFolder array to add root public folders which require a dedicated report for each sub-folder.


Version History

  • 1.0, Initial community release
  • 1.1, Replica status (green/red) depending on the item count, not the percentage
  • 1.2, Fixed: If 1st server has a lower item count a folder is not being added to the list of folders with incomplete replication
  • 1.3, Changes to number and size formatting, Exchange 2007 now returns MB or GB, as configured
  • 1.4, Handling of KB values with Exchange 2007 added
  • 1.5, Some PowerShell hygiene and fixes
  • 1.6, Count of incomplete replicated public folders stated in the table header (issue #1)




Additional Credits

Additional credits go to Mike Walker (




Additional Note

This Powershell script has been optimized using the ISESteroids™ add-on. Learn more about ISESteroids™ here.



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The community script to gather legacy public folder replication reports for Exchange Server 2010 and Exchange Server 2007 has been updated.

The replica status of a public folder is indicated by a green or red backgroud color for each folder and replica. The previous version of the script used the replica percentage to set the backgroud color. Escpecially folders holding a large number of items had an issue when Math::Round provided a 100% value.

The current version of the script compares the item count itself. This approach provides a more accurate result.



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