Why my mail is quickly turning into a pile of crap

Let's run the numbers. Since midnight last night, I have received:

  • 145 SPAM mails classified as such by bogofilter
  • 36 unsure-if-they're-SPAM mails classified by bogofilter
  • 25 graphics SPAMs which bogofilter couldn't classify
  • Numerous mails returned to decafbad.net as undeliverable SPAM.

And that's just with several domains. I can't even imagine how many mails a business gets in a single day. Google mail must get literally bombarded with crap.

The mind boggles.