Set calendar permission for My organization to None by default

Question

Hi all,

As I understand in Exchange Online by default My organization has "Can view all details" permission.

Is it possible to set default permission to None for existing and users.

Answer 1

Hi @X-Box-11-2021

Thanks for reaching out to the Microsoft Q&A forum.  

Based on my research, if you want to change the calendar permission of existing users in your organization to None, this must be done through PowerShell. The process requires looping through each user in your tenant and setting the AccessRights value to None. 

Below is an example PowerShell script that you can use to achieve this result: 

foreach($user in Get-Mailbox -RecipientTypeDetails UserMailbox)  
{ 
	Set-MailboxFolderPermission -Identity ($user.alias+':\calendar') ` 
		-User Default -AccessRights None
} 
 

Please note that this script only applies to users who already exist in your tenant. It will not affect newly created accounts. If new users are added later, you will need to run the script again to apply the same permission. Users can also change their calendar permissions on their own if they choose to. 

I hope this brings helpful insight. If you have any updates, please feel free to share. 

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