Knowledgebase
Terminology
  • Spam - unsolicited junk email / useless email that you never asked to receive.  Spam is often understood as any email that a recipient didn't want, but true Spam is something that will always carry a payload (a link to some website or stock or something) containing some information that tries to financially benefit a third party, and often sent using criminal means (misappropriation of email servers or clients for bandwidth or false legitimacy, as well as the unethical harvesting or guessing of email addresses).  It is important to remember that Spam would not exist if not enough people were fooled by it into parting with their money.
  • Ham, Clean, Innocent - these are synonyms we use for email that doesn't fall into the other categories and which Proofpoint Essentials should pass unhindered.
  • Bulk Mail - compared with spam, this is undesired email, but legitimate; like newsletters or marketing material from legitimate businesses.  Remember that recruitment/news/normal looking website/agency you subscribed to, or sent a card/article/comic to a friend?  Did you read their privacy policy?  True to their word, your emails never traveled further than their business group, and set of partners, and their partners’ partners, and were never divulged for reasons other than promotion of their business.
  • Virus - a malignant executable that hides and poses as, or in the middle of, something it is not, and spreads itself actively when running or passively by relying on social engineering (fooling people to forward that email); classic viruses used to harm one's computer (like formatting/damaging the disk) but modern viruses tend to try to either steal information (access credentials, credit card details, identity theft) or take control of your computer (and join a botnet (a network of 'bots), using it to send spam, launch attacks, etc.)
  • False Positive - a "positive" is desired email, and this term is from classification theory, i.e. a false positive is a desired email that falsely got misclassified as spam.
  • False Negative - a "negative" is undesired email (spam/virus), and in this terminology a false negative is an undesired email that falsely got misclassified as clean.

 

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