Licensing is clearly unrealistic. But how about charging some nominal fee (say $0.10, ala SMS) for each outgoing email msg?
All of a sudden people will really care about how many outgoing emails their computer sends out, and you betcha if Aunty gets a nice hefty bill she'll make sure to reinstall the OS to get rid of that pesky (and costly) malware.
Licensing is clearly unrealistic. But how about charging some nominal fee (say $0.10, ala SMS) for each outgoing email msg? All of a sudden people will really care about how many outgoing emails their computer sends out, and you betcha if Aunty gets a nice hefty bill she'll make sure to reinstall the OS to get rid of that pesky (and costly) malware.