Feeling vaguely proud of the old #Mailpile v1 bayesian #spam filter, which successfully showed me my legit #email from DHL last week, while still sending all the DHL-themed #phishing straight to spam.
This is without using any DNS based blacklists or anything of that nature, just pure content analysis.
Generating keywords that represent message structure and other such things, to better train the spam filter, is one of the more interesting parts of this project. It's fun to see it work!