SCRIPT: Set-CalendarPremissions.ps1

Script Name: Set-InternalExternalURLs.ps1

Log:

v01 07.07.2010
- Initial Script. Finds calendar folder for all users, checks if it is in Norwegian or English, adds permissions for callendar sharing
- Added option for some users to gain full access of spesific users calendars
- Added Option to set editor access on individual mailboxes
- Added option to set review for users created last 30 days
V02 30.09.2011

Updated and verified the script to work both in Exchange Server 2010 and Exchange Online

####################################################################################################
# Set-CalendarPremissions.ps1
#
# v02 September2011 by MVP Ståle Hansen (http://msunified.net)
#
####################################################################################################
[System.Console]::ForegroundColor = [System.ConsoleColor]::White
clear-host

write-host
write-host Script for setting calendar folder for all users to default reviewer
write-host this is good for organizations using shared calendars
write-host
write-host Please choose an option below:
write-host
write-host '1) All users'
write-host '2) All users created last 30 days'
write-host '3) Give indivdual users full access to individual users calendars'
write-host '4) Exit' -ForegroundColor Red
write-host
$opt = Read-Host "Select an option [1-4]"

switch ($opt) {

1{
#Set default as reviewer for all calendars.
#Will check if the user has english or norwegian language on their calendar folder

foreach($mbx in Get-Mailbox -ResultSize Unlimited | where-object {$_.displayname -notmatch "discovery"}) {
	$mbox = $mbx.alias+":\calendar"
	$test = Get-MailboxFolderPermission -Identity $mbox -erroraction silentlycontinue
	if($test -ne $null){
		Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer | out-null
		[string]$user=$mbx.name
		[string]$folder="Calendar"
		[string]$AccessRight="Applied"
		$obj = New-Object PSObject
		$obj | Add-Member NoteProperty User ($user)
		$obj | Add-Member NoteProperty Folder ($folder)
		$obj | Add-Member NoteProperty AccessRight ($AccessRight)
		Write-Output $obj
	}
	else{
		$mbox = $mbx.alias+":\kalender"
		Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer | out-null
		[string]$user=$mbx.name
		[string]$folder="Kalender"
		[string]$AccessRight="Applied"
		$obj = New-Object PSObject
		$obj | Add-Member NoteProperty User ($user)
		$obj | Add-Member NoteProperty Folder ($folder)
		$obj | Add-Member NoteProperty AccessRight ($AccessRight)
		Write-Output $obj
	}
}

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

2{
#Set default as reviewer for all calendars.
#Will check if the user has english or norwegian language on their calendar folder
#Will only apply for users created last 30 days

foreach($mbx in Get-Mailbox -ResultSize Unlimited | where-object {$_.displayname -notmatch "discovery"} | Get-MailboxStatistics | where-object {$_.LastLogonTime -lt (get-date).adddays(-30)} | Get-Mailbox) {
$mbox = $mbx.alias+":\calendar"
$test = Get-MailboxFolderPermission -Identity $mbox -erroraction silentlycontinue
	if($test -ne $null){
		Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer | out-null
		[string]$user=$mbx.name
		[string]$folder="Calendar"
		[string]$AccessRight="Applied"
		$obj = New-Object PSObject
		$obj | Add-Member NoteProperty User ($user)
		$obj | Add-Member NoteProperty Folder ($folder)
		$obj | Add-Member NoteProperty AccessRight ($AccessRight)
		Write-Output $obj
	}
	else{
		$mbox = $mbx.alias+":\kalender"
		Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer | out-null
		[string]$user=$mbx.name
		[string]$folder="Kalender"
		[string]$AccessRight="Applied"
		$obj = New-Object PSObject
		$obj | Add-Member NoteProperty User ($user)
		$obj | Add-Member NoteProperty Folder ($folder)
		$obj | Add-Member NoteProperty AccessRight ($AccessRight)
		Write-Output $obj
	}
}

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

3{
#Will give inputted user access to inputted calendar folder Editor accessright
#Typically for Servicedesk users

Write-Host "Please type the alias of the user you want to set the permission on: " -nonewline
$mbx = Read-Host
Write-Host "Please type the alias of the user you want to give editor access on $mbx's calendar folder: " -nonewline
$editor = Read-Host
$mbox = $mbx+":\calendar"
$test = Get-MailboxFolderPermission -Identity $mbox -erroraction silentlycontinue
if($test -ne $null){
	Set-MailboxFolderPermission -Identity $mbox -User $editor -AccessRights Editor | out-null
	[string]$user=$mbx
	[string]$folder="Calendar"
	[string]$AccessRight="Editor"
	$obj = New-Object PSObject
	$obj | Add-Member NoteProperty User ($user)
	$obj | Add-Member NoteProperty Folder ($folder)
	$obj | Add-Member NoteProperty AccessRight ($AccessRight)
	Write-Output $obj
	}
else{
	$mbox = $mbx+":\kalender"
	Set-MailboxFolderPermission -Identity $mbox -User $editor -AccessRights Editor | out-null
	[string]$user=$mbx
	[string]$folder="Kalender"
	[string]$AccessRight="Editor"
	$obj = New-Object PSObject
	$obj | Add-Member NoteProperty User ($user)
	$obj | Add-Member NoteProperty Folder ($folder)
	$obj | Add-Member NoteProperty AccessRight ($AccessRight)
	Write-Output $obj
}

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}
4{

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

}

11 thoughts on “SCRIPT: Set-CalendarPremissions.ps1”

Change the default Calendar AccessRight on all mailboxes to Reviewer « msunified.net says:

30/09/2011 at 13:13

[…] Get the script here: https://msunified.net/exchange-downloads/script-set-calendarpermissions-ps1/ […]

Reply
heintraag says:

09/03/2012 at 09:58

Can the script be modified to grant one group editor rights to all calendars? At work we want the Secretary group to be able to edit all calendars. I’m not a powershell pro by far so i want to know if this is a quick add-on to the script.

Reply
Ian says:

17/01/2013 at 03:35

Thanks for this script. I kept getting errors with the “Set-MailboxFolderPermission” command. I had to change it to “Add-Mai;boxFolderPermission”. The error stated “No existing permission entry found for user..”
———-

To Heintraag, here is how I modified the script to add reviewer access for a particular user on all calendars. I jsut did this and haven’t fully tested. I am also not a powershell pro so I hope it works. I think I can probably remove the $test section for my purposes since I don’t have any other languages in my environment.

———–
Write-Host “Please type the alias of the user to whom you want to grant reviewer access on all calendar folders: ” -nonewline
$reviewer = Read-Host

foreach($mbx in Get-Mailbox -ResultSize Unlimited | where-object {$_.displayname -notmatch “discovery”}) {
$mbox = $mbx.alias+”:\calendar”
$test = Get-MailboxFolderPermission -Identity $mbox -erroraction silentlycontinue
if($test -ne $null){
Add-MailboxFolderPermission -Identity $mbox -User $reviewer -AccessRights Reviewer | out-null
[string]$user=$mbx
[string]$folder=”Calendar”
[string]$AccessRight=”Reviewer”
$obj = New-Object PSObject
$obj | Add-Member NoteProperty User ($user)
$obj | Add-Member NoteProperty Folder ($folder)
$obj | Add-Member NoteProperty AccessRight ($AccessRight)
Write-Output $obj
}
}
————-

Reply
Rob Taylor-Shaw says:

29/01/2013 at 20:19

FYI the title of this page is set as “SCRIPT: Set-CalendarPremissions.ps1” permissions is spelled wrong. I had copied it to save the script locally and was scratching my head when it kept giving errors when I typed it with correct spelling. Thanks for sharing the script, it worked great for me! Cheers!

Reply
- Ståle Hansen says:
  
  29/01/2013 at 20:34
  
  yeah, I know, its one of those caveats :)
  
  Reply
Andreas Hornberg says:

20/02/2014 at 10:11

Do you know how to make this script work when we got multiple users with two mailboxes?
The alias is the same so I get the “The specified mailbox ******* isn’t unique” when running the script.

Maybe make it look at the UserPrincipalName instead of alias?

Reply
Lasse Pettersson says:

07/07/2014 at 11:35

Have a look at this. http://anewmessagehasarrived.blogspot.com/2012/03/update-calendar-folder-permission.html

Reply
M de Groot says:

12/01/2015 at 16:01

I have changed the script so it determines the Calendar folder name which is useful in a Multilanguage user environment.

####################################################################################################
# Set-CalendarPremissions.ps1
#
# v02 September2011 by MVP Ståle Hansen (http://msunified.net)
# Modified by M de Groot januari 2014
#
####################################################################################################
[System.Console]::ForegroundColor = [System.ConsoleColor]::White
clear-host

write-host
write-host Script for setting calendar folder for all users to default reviewer
write-host this is good for organizations using shared calendars
write-host
write-host Please choose an option below:
write-host
write-host ‘1) All users’
write-host ‘2) All users created last 30 days’
write-host ‘3) Give indivdual users full access to individual users calendars’
write-host ‘4) Exit’ -ForegroundColor Red
write-host
$opt = Read-Host “Select an option [1-4]”

switch ($opt) {

1{
#Set default as reviewer for all calendars.

foreach($mbx in Get-Mailbox -ResultSize Unlimited | where-object {$_.displayname -notmatch “discovery”}) {
$cfolder = Get-MailboxFolderStatistics -Identity $mbx.alias -FolderScope Calendar | Select-Object -First 1 Name
$mbox = $mbx.alias+”:\”+$cfolder.name
Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer -WarningAction SilentlyContinue *>&1 | out-null
# For adding rights for the Calendar administrator (or secretary)
# Add-MailboxFolderPermission -Identity $mbox -User Michel -AccessRights Editor -WarningAction SilentlyContinue *>&1 | out-null
[string]$user=$mbx.name
[string]$folder=$cfolder.name
[string]$AccessRight=”Applied”
$obj = New-Object PSObject
$obj | Add-Member NoteProperty User ($user)
$obj | Add-Member NoteProperty Folder ($folder)
$obj | Add-Member NoteProperty AccessRight ($AccessRight)
Write-Output $obj
}

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

2{
#Set default as reviewer for all calendars.
#Will only apply for users created last 30 days

foreach($mbx in Get-Mailbox -ResultSize Unlimited | where-object {$_.displayname -notmatch “discovery”} | Get-MailboxStatistics | where-object {$_.LastLogonTime -lt (get-date).adddays(-30)} | Get-Mailbox) {
$cfolder = Get-MailboxFolderStatistics -Identity $mbx.alias -FolderScope Calendar | Select-Object -First 1 Name
$mbox = $mbx.alias+”:\”+$cfolder.name
Set-MailboxFolderPermission -Identity $mbox -User Default -AccessRights Reviewer -WarningAction SilentlyContinue *>&1 | out-null
# For adding rights for the Calendar administrator (or secretary)
# Add-MailboxFolderPermission -Identity $mbox -User Michel -AccessRights Editor -WarningAction SilentlyContinue *>&1 | out-null
[string]$user=$mbx.name
[string]$folder=$cfolder.name
[string]$AccessRight=”Applied”
$obj = New-Object PSObject
$obj | Add-Member NoteProperty User ($user)
$obj | Add-Member NoteProperty Folder ($folder)
$obj | Add-Member NoteProperty AccessRight ($AccessRight)
Write-Output $obj
}

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

3{
#Will give inputted user access to inputted calendar folder Editor accessright
#Typically for Servicedesk users

Write-Host “Please type the alias of the user you want to set the permission on: ” -nonewline
$mbx = Read-Host
Write-Host “Please type the alias of the user you want to give editor access on $mbx’s calendar folder: ” -nonewline
$editor = Read-Host
$cfolder = Get-MailboxFolderStatistics -Identity $mbx.alias -FolderScope Calendar | Select-Object -First 1 Name
$mbox = $mbx+”:\”+$cfolder
Set-MailboxFolderPermission -Identity $mbox -User $editor -AccessRights Editor -WarningAction SilentlyContinue *>&1 | out-null
[string]$user=$mbx
[string]$folder=”Calendar”
[string]$AccessRight=”Editor”
$obj = New-Object PSObject
$obj | Add-Member NoteProperty User ($user)
$obj | Add-Member NoteProperty Folder ($folder)
$obj | Add-Member NoteProperty AccessRight ($AccessRight)
Write-Output $obj

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}
4{

[System.Console]::ForegroundColor = [System.ConsoleColor]::Gray

}

}

Reply
- Ståle Hansen says:
  
  12/01/2015 at 16:16
  
  Awesome! Thanks for sharing :)
  
  Reply
Terri Dillon says:

25/05/2021 at 17:02

I am a true beginner! I am looking for help on a script.
I would like to have the script ask the user to enter the Owners email, then run the Get-Mailbox command. Then do an if/then statement to add users permissions.
I kind of need a jumping off point to get started. Any help would be appreciated. Even recommended books would be great. Trying this on my own… schools way to expensive !
I am trying to combine steps into one script:
$Mbox = “Owners.email”
Get-MailboxFolderPermission $Mbox”:\Calendar”
If user does not have permissions to the calendar
$User = “USERs.email”
Add-MailboxFolderPermission $Mbox”:\Calendar” -User “$User” -AccessRights PublishingEditor
If user already has permissions but you need to change them
Set-MailboxFolderPermission $Mbox”:\Calendar” -User “$User” -AccessRights PublishingEditor

Reply
- Ståle Hansen says:
  
  27/05/2021 at 00:18
  
  I recommend reading this blogpost by my colleague Alexander Holmeset about how he got in to automation with some recommendations as well https://alexholmeset.blog/2018/01/01/my-story-on-how-i-got-into-automation-and-why-you-should-do-the-same-in-2018/
  
  Reply