I have read the posts about PORN spam with interest.
Posting back to the headers is a waste of time IMHO.
I have recently been receiving porn with variations on the theme "Young Teens F***" which display a pornographic image - my concern is that less educated users, possibly children, could be exposed to this filth.
This particular e mail points to a downloadable file (probably a premium rate dialler) which was until recently hosted on wanadoo.es. I have been forwarding details to
abuse@wanadoo.es with sample e mails (200+) attached and the hosting was removed! I'd like to think I had some part of that!
Now, they are hosted on gratisweb, another wanadoo host so here I go again!