SPAM

Even though I've cranked-up my Spam filter to the point where I'm loosing real emails I still get about five Viagra emails a day, all from the same place.

1. How do they get through when my real mail is being effected?
2. More importantly why do these spammers believe that if you don't want to buy after one email that you are more likely to buy if they send you five everyday? Makes no sense, even if I wanted Viagra the last people I'd buy from are these spammers.
3. Why do they send it to me with an .au address, don't they know that in Australia, thanks to our government subsidy I can buy ALL my drugs for far less than any Canadian Pharmacy?