7.4. Fighting Spam
Our good friends at Wikipedia said it best, "Spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages." Spam often involves sending identical or nearly identical messages to hundreds, thousands, and even millions of recipients. Addresses of recipients are often harvested from chain e-mail letters or web pages, obtained from databases, or guessed by using common names and domains. Spam is not just an irritation; it costs corporations, educational institutions, and governmental agencies in the United States alone tens of millions of dollars in lost operations and productivity each year.
An entire industry of software has risen up to help fight spam (much as an entire industry lurks ...
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