Spam Blocker Hosts

• Honeypot: The honeypot is created to attract spam and hackers and is usually used to detect and study various types of system attacks (not just spam).
• Honeypots are used in the study of open proxies and other spam-related phenomena.
• A Bayesian filter looks at individual words (or "tokens") in a message and "weighs" them for their frequency of appearance in spam versus their frequency of appearance in general, non-spam e-mail; when the weights of all these words are combined using the Bayes equation, the result is an estimate of the probability that a message is spam.
• Spam cancellers usually issue cancels based strictly on volumes of spam and not by content, in order to avoid charges of censorship.
• If a spammer can set up his own authoritative name servers for his website domains, he can use these to rapidly change the apparent address of his websites among large "botnets" of compromised home computers.
• Spam, Bulk Email: Spam originally meant to post many off-topic and inappropriate postings to a newsgroup(s), making it hard to read by lowering the signal to noise ratio.
• The term spam, of course, is the product manufactured by hormel, inc.
• It came to it's current meaning because of a skit by monty python's flying circus in which a group of vikings begins singing "spam, spam, spam, spam.
• Spam recipients who use exchange-based mail services are at a relative disadvantage in tracing spam messages, since exchange clients often make it difficult to see smtp headers, and will often munge the format of messages and of complex mime-based e-mail bodies.
• In the case of spam, the emails from-addresses are almost always false, and may belong to innocent third parties who suddenly find themselves receiving dozens (or more) of mysterious responses to messages they never sent.

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