I have been thinking a lot lately about email management and spam fighting.

For my personal email, I use a setup based on Postfix, RBL and WL, grey listing, and DSPAM (by the way, you can find unofficial packages of current development version in my personal repository).

To better train DSPAM, I have removed all other filters (except some very basic controls at SMTP time), and I am very happy of this setup (grey listing delays receipt of email, which I am not very satisfied with, and relying on third-parties RBL is also not the best thing imho). This lead however to much more mail in my DSPAM quarantine queue.
I will hence re-enable more advanced filters at SMTP time once DSPAM bayes are large enough.
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