Mail-encrytion (MobileMe)

Hi,
another question concerning mail-encrytion:
I know that espionage can encrypt my mail folders, so that mail-data on my computer is protected - but what about the data that is stored online at my provider (Mobile Me).
If I understand right these data remains unprotected - or is there a way to protect the online-files, too??
Thank you for your patience...
another question concerning mail-encrytion:
I know that espionage can encrypt my mail folders, so that mail-data on my computer is protected - but what about the data that is stored online at my provider (Mobile Me).
If I understand right these data remains unprotected - or is there a way to protect the online-files, too??
Thank you for your patience...