> SpamAssassin's trusted_network configuration caught my > eye. What exactly does this do, and should I put my box's > ip address in there?
Absolutely. You put all your internal servers and possible ISP servers there too. Trusted networks are networks and hosts that you trust are not generating spam. They may deliver spam to you, but not generate it. And mostly, they will not tamper with email headers, that's what the trust is about.
