I have finally deciphered the Exchange 2007 Exchange Management Shell. I have needed to manage permissions for coming and going hires at my company for a Public Folder. I have found that using a Mail Enabled Security Group to manage Shared Calendars, Contacts, etc for Outlook/Exchange has made it easier when a user comes or goes.
My question is simply this: Can I use my Mail Enabled Security Group to govern AccessRights to a Public Folder on my SBS 2008 Exchange 2007 server?