Spam Database Maintenence

Maybe it is already there, maybe not. I would love it if there was an easy way to add messages to the spam database in virtualmin. Like an address spamtrap@ & hamtrap@, that auto add to a users a db. Most of my users do not use usermin, and so their spam databases are very limited. I would also like a way to add messages to a global db. One which I can put messages that I deem as spam or not. It would really make it easy for me to increase the spam filters capabilities across all users.