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Spambot

A spambot is a computer program designed to assist in the sending of spam. Spambots usually create accounts and send spam messages with them.[1] Web hosts and website operators have responded by banning spammers, leading to an ongoing struggle between them and spammers in which spammers find new ways to evade the bans and anti-spam programs, and hosts counteract these methods.[2]

Anti-spam techniques

Botnet

Dead Internet theory

List poisoning

Rustock botnet

Spamtrap

Spider trap

Votebots

Botnet discussion mailing list

Harvester Killer – Fight back at spambots

Fight Spam - Join Byteplant's Spambot Honeypot Project

BotScout: Anti-bot service dedicated to fighting forum spam

Spambot Beware! - information on how to avoid, detect, and harass spambots

Bot-trap - A Bad Web-Robot Blocker