My Mac Mail Program Is Getting Senile

I woke up to 82 messages in my inbox today. Of them, 80 were spam. That's not a very good ratio.

Is there a way to make my Mac Mail program better at sniffing out spam? It seems like it's actually getting stupider over the years. You'd think by now it would realize that anything involving penises, cash transfers and Hoodia belongs in my dreams, not my inbox.

Oh, and Happy Mother's Day to all applicable readers!