@p

You can eliminate most of the spam on the internet by not using gmail in the first place. I manage my own SMTPd and compared to when I hosted the same domains using gapps/gmail where I was getting sometimes upwards of 2,000 spam messages per day with copious false positives, on my self-hosted email server I'm lucky if I get a few spam messages per year in total (with several domains routed into a catch-all inbox), and so far zero false positives. Either google's staff are utterly incompetent, or they allow it to be that way on purpose.