A friend of mine received a chilling email message from his ISP the other day. Someone had reported him as sending SPAM and the ISP warned that an additional SPAM complaint would result in losing his hosting service - period. No ifs, ands or buts!

The ISP just took the word of the person filing the complaint as gospel, even though my friend had the email subscription notification where this person, or someone posing as them, had subscribed.

My friend sent me a copy of the subscription notification. And sure enough, there it was as plain as day