Spam Blocking Software

• As soon as you have an internet connection it becomes useful to have some form of spam blocking software to protect you from unwanted junk mail.
• This differs from a block list in that it actively boycotts tcp/ip addresses known to send spam or host spammers.
• Spamhandling: begging via spam.
• (like panhandling)The MLM (multi-level marketing) model is the basis for many ethical and honest businesses, but is also often exploited by spammers in a fashion similar to chain letters.
• Free internet services such as deja-news, or internet services with free trial periods such as aol, are favorites of spammers, as it costs nothing to acquire an account with an email address, and to lose the account is meaningless to them.
• Bulletproof hosting is a service offered by a hosting provider who hosts websites for spammers that will not be shut down due to AUP violations, questionable content or use of spam marketing.
• A blacklist is a list of e-mail addresses from which a user does not wish to receive mail; it may be used as part of a spam filter to hide or discard messages from addresses that appear on the list.
• Blacklists are not a terribly effective form of spam filter as they usually do not block or reject e-mail as much as merely route it to some destination of the user's choice (like the trash can).
• Winning the war on spam is a tough task, but the end of spam draws nearer.
• The vast majority of spam messages make use of forged headers, although they are explicitly prohibited by most isps as well as by the can spam law.
• Should we accept spam, should we live with it? Well, should we accept serious crimes like murder, rape and armed robbery? Just think what would happen if we had the same attitude towards these crimes.
• The typical spam mailing list is effectively an opt-out list, although some spammers will claim otherwise.
• Many botnet spammers will use large networks of reverse proxies to shield their websites, and will rotate the proxies at intervals as small as a couple of minutes to make detection and retaliation difficult.

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