rate rbl spam blockers thoughts for 12.31.1969

  • To prevent abuse, each user is rated based on the material they flag.
  • A low rate of false positives is an indication of the effectiveness of a spam filter.
  • A low rate of false negatives is one characteristic of an effective spam filter.
  • According to one article, spammers usually need to send a million e-mails to get fifteen positive responses, for the average direct-mail campaign, the response rate is three thousand per million.

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