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Method for Protecting Valid Email from Overzealous Spam Deletion

IP.com Disclosure Number: IPCOM000022368D
Original Publication Date: 2004-Mar-11
Included in the Prior Art Database: 2004-Mar-11
Document File: 1 page(s) / 29K

Publishing Venue

IBM

Abstract

This article discloses a method for protecting valid email in the in-box from deletion by detecting overzealous spam deletion.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

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Method for Protecting Valid Email from Overzealous Spam Deletion

Unsolicited email has become a problem so large that it is threatening to destroy the value of email communication. Over the past several months, spam volume has increased dramatically. Valuable email is being drowned out by spam. Random, intermittent and casual conversations are the most at peril. Conversations between people who don't know each other well, or have forgotten that they know each other, now routinely get trashed. Most people employ spam filtering and yet still wind up deleting many emails. Valid email is being deleted along with bad because the sender did not pick a non-spam sounding subject or is someone who the recipient is not used to receiving email from. The core of this idea is to warn email users if they are about to delete an interesting email without first reading it.

A common spam filtering technique is Bayesian filtering. Bayesian filtering employees two lists (or corpuses). One list (spam corpus) contains words and phrases that are commonly associated with spam, and the other list (non-spam corpus) contains words and phrases that are commonly associated with non-spam/valid email. When an email arrives, the words of that email are screened against the spam and non-spam corpuses and a score is calculated determining how closely the email matches previously received spam. If the incoming email exceeds a user defined threshold for spam correspondence, for example 75%, the user may opt to have the email deleted or moved to a spam folder without viewing it. De...