The act of sending out spam made to look like it came from a person or organization which the spammer dislikes. Spamhaus, SpamCop and other anti-spam organizations are often the victims of these, as are some individual anti-spammers. Being Joe-jobbed is usually taken as a sign that the victim must have really hurt some spammer.

The act of sending out spam made to look like it came from a person or organization which the spammer dislikes. Spamhaus, SpamCop and other anti-spam organizations are often the victims of these, as are some individual anti-spammers. Being Joe-jobbed is usually taken as a sign that the victim must have really hurt some spammer.