I don't know. After reading that link that Roger pointed to, it seems like for just forwarding an email you could theoretically be sued by the original writer. Even if no damages are awarded, you could win the court costs.

I will of course choose not to sue you, because I know a million dollars is hard to come by, and that will be nothing compared to the hundreds of millions I will be making soon.

By the way, if I ever am a multi-billionaire, I will give a million dollars to everyone I ever knew, including everyone on this BBS.