report as spam

I noticed there is an option when checking mail through virtualmin as opposed to through a mail program like outlook that there is an option to "report as spam" - I tired it and I see it reports is to razor, is there a way to report spam from outlook or outlook express? Will the spam that is reported apply to all accounts on the system or is it just that user or just that domain?

I am fed up with the amount of spam I get. I lowered the spam score to 3.6 in spam assassin, but I still get too much.

any good suggestions?