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"Spambots" scan Web pages for victim addresses
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Most don't obey robots.txt etiquette
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Many don't understand HTML entities! Instead of
| mailto:clueless@newbie.com |
| write |
| mailto:clueless@newbie.com |
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Other techniques:
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Construct link on the fly with Javascript
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Render address as bitmap
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Supply link via POST method
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Recognize spambot HTTP_USER_AGENT field
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Feed spambot bogus addresses
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Use "address mangling;" e.g.
clueless.remove-me@newbie.com
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For more tips, plus CGI scripts, see "Spambot Beware" (http://www.turnstep.com/Spambot/)
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