No if I did that it wouldn't be able to be a plugin. The app would either have to be a proxy or a port sniffer to find out who is sending the file. And since it was prefered as a plugin I wont do it. I know someone who is trying to make one that will sort by senders email using a Port Sniffer but thats all I will say because as far as I know he hasn't been successful doing it yet.
/ 
