Evolutionary pressure on spam

[dr_tectonic]

I was just cleaning out my email filter and found one with a spam-score of +49! (Anything above 0 is considered spam. Legit email has, at best, a score of about -6.)

I looked at all the rules that tagged it, and honestly? I think that at this point, you might do better just listing various pharmaceutical names in the clear, rather than replacing every A with a 4 and every I with a 1.