Ok so if you really want to fuck him up...
You would report him to the FTC / FBI for sending unsolicited spam.
Report him to iContact's abuse department.
Report him to privatesystems.net for abuse.
Report him to spam cop and spam haus.
Reality is though it's a numbers game. If we can report him and his complaint threshold goes up to high he'll be immediately shut down by iContact.
I did this to the last guy that sent me unsolicited spam after I asked him nicely to remove me and got a reply telling me to go fuck myself.