Definitions for "Joe job"
Keywords:  forged, spammer, innocent, spam, victim
Circa 1996, a Joe Job is spam run forged to appear as though it came from an innocent party, who is then generally flooded by the bounces; or, the act of performing such a run. Modern Joe Jobs involve forged email headers and other nasty tricks to make it really convincing. And with the advent of dnsBLs like SPEWS (The Spam Prevention Early Warning System) and peoples' personal lists, a successful Joe Job can really hurt the victim.
an e-mail spam designed to tarnish the reputation of an innocent third party
an e-mail spoofing exploit in which someone sends out huge volumes of spam that appear to be from someone other than the actual source