Hi
I wish.
PureSight ACR (which is the auto content recognition that does the actual scanning of the data) is solely intended for HTML content, and can only classify into 2 categories. The other categories are database based, and are therefore only based on the URL, which doesn't exist in a mail message.
There are some systems on the net, using POP3 proxying, that have good results scanning and blocking spam - notably Death2Spam.
Take a look at
www.death2spam.net - we use it in-house.
Adrien