Just a word of warning... on at least one list we host, the list owner had their list set to allow posts from their own address without moderation. The from header was modified so that the address it was really being sent from wasn't displayed. Anyhow, from a message that went out in August 2000, rr.com just resent it today! Looking at the x-headers, it is showing a message id from rr.com's mail server. The hostname is mail.hot.rr.com. I put in a block against this specific hostname a few hours ago and saw two other re-send attempts come in.
