No, I already use automated labeling based on sender, and the amount of mail that doesn't fall under these filters is generally 1) small in volume, and 2) spam.

No, I already use automated labeling based on sender, and the amount of mail that doesn't fall under these filters is generally 1) small in volume, and 2) spam. This sounds like a whole lot of work for something that already works well enough. In my experience, Bayesian filtering works well, until it doesn't. I then find myself frustrated because the filter is essentially a black box to me. I could keep trying to train it, but I already have two children and three pets. My patience for teaching things to a computer is usually nonexistent.