Mail.app spam definitions

[Joel Hopwood]

OK, so I'm *still* receiving 40-50 sobig virus emails A DAY.... thanks 
to the Windows world. I don't mind receiving the infected mail, since 
it can't hurt me and goes straight into the Junk folder, but when is 
Mail going to twig that these are all junk?

How do the spam filters on Mail get updated?

Recently I have been receiving a lot of spam with completely random 
titles like "Good to see you" or whatever. They are all about Generic 
Viagra - you'd think Mail would have picked up on the fact that any 
Mail that contains say HTML coding and the words generic viagra is 
spam... but no.

Does anybody know when Mail updates its filters?

Cheers

Joel