Open Exchange Management Shell

First run this command to get a list of the folders a user has

Get-Mailbox -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it." |  foreach-object {Get-MailboxFolderStatistics -Identity This email address is being protected from spambots. You need JavaScript enabled to view it. | select-object Identity, ItemsInFolder, FolderSize}

say the user has the following folders listed:

2009 Inbox

2010 Inbox

2013 Inbox

Conversation History

Sync Issues

and we want to get permissions of the 2009 Inbox folder

Get-MailboxFolderPermission -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it.:\2009 Inbox"

and say it has the following user permissions you would like to remove:

NT User:ZACHRY\reynosah

Tassos, Susan

run:

Remove-MailboxFolderPermission -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it.:\" -User "NT User:ZACHRY\reynosah"

Remove-MailboxFolderPermission -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it.:\2009 Inbox" -User "Tassos, Susan"

then run Get-MailboxFolderPermission -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it.:\2009 Inbox" again and you should see the permissions are removed.

to display the root folder permissions run:

Get-MailboxFolderPermission -Identity "This email address is being protected from spambots. You need JavaScript enabled to view it.:\"

Conversely, if you want to add permissions, here are some examples on doing that:

Example 1

 

This example grants Kevin Kelly full access to Terry Adams's mailbox.

Note:
The Identity parameter requires the full name of the user to be enclosed in quotation marks (").

 

 

Add-MailboxPermission -Identity "Terry Adams" -User KevinKelly -AccessRights FullAccess -InheritanceType All

Add-MailboxPermission -Identity "Room 222" -Owner "Tony Smith"

Add-MailboxPermission -Identity JeroenC -User 'Mark Steele' -AccessRights FullAccess -InheritanceType All -AutoMapping $false