I have upgraded to an iPhone 5 recently. My iPhone 4 maintained sync between my .msn(Hotmail) folders without a problem. My iPhone 5 only syncs the inbox. All other Mail folders report "no Mail".  My Hotmail account via the web(now an outlook account) and Windows 8 Mail app on my surface pro sync ok and all folders are maintained there. My iPhone is running OS 7 and I have deleted and restarted the email account on the phone using the Mail app and selecting "Hotmail" for the setup. Based on the running dialogue here there may be something to be done at the server end. Help!