White Papers

Combating Spam With TEA (Trustworthy Email Addresses)

Overview It has been observed that the underlying reasons for the continuing growth of the "Spam" problem are a lack of reliable sender authentication and the near-zero cost of sending huge volumes of marketing material worldwide, via email. Previous attempts to address these problems either change the fundamental properties of email, reducing its usefulness to legitimate senders, or require an infeasible move to new system architectures. This paper presents two new techniques for increasing the level of sender authentication for legacy-system plain text email addresses. They then show how these Trustworthy Email Addresses (TEA) can be used in conjunction with a trust and risk-based security framework as an effective anti-spam tool.

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Publisher: Trinity College Dublin
File Format: PDF
Date Published: Oct 14, 2008
Format: White Papers
Topics: Spam - E-mail Fraud - Phishing, Network Security

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