I cannot understand what exactly is a public folder? Please tell me a self explanatory note, reason I donot understand the bookish values telling it is a place to store mails folders. I do not understand is it a shared folder or is it a folder in default when you configure OWA. Is public folder a shared drive's folder. What is the real purpose? If one wants a pst he can create it and store in his system then why public folder is needed? Why are they migrated? What is difference in 2007 and 2003 public folder? I really think it to be very irritating that what really public folder is? All the books stress a lot in public folders.