How to configure Exchange 2007 public folder permissions

How to configure Exchange 2007 public folder permissions

For some reason when you use the Public Folders tool in Exchange 2007 SP1
you can't change the client permissions for the public folders.
So to do so, follow the below
steps:
1) Logon to your 'Exchange 2007' server.
2) Open the 'Exchange Management Shell'.
3) Type the below, replaceing 'public folder name' with your public folder name/path and you must keep the \ at the front of it and also replace 'username' with the username:

Add-PublicFolderClientPermission -Identity "\public folder name" -AccessRights Owner -User username

That's it, just repeat for any other public folders that you wish to change the permissions on.
The above example is to assign Owner permissions to the user, but you can replace Owner with the below:

None
Owner
PublishingEditor
Editor
PublishingAuthor
Author
Non-EditingAuthor
Reviewer
Contributor

http://technet.microsoft.com/en-us/library/bb310789.aspx