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Principles of a Reputation System: IronPort's 2nd Generation Filters and SenderBase Insights

This document details the principles behind IronPort's advanced reputation system, including its 2nd generation filters powered by SenderBase. It emphasizes requirements such as diversity in data sources, real-time accuracy, and objective scoring. The SenderBase network comprises 50,000 contributors and processes over 5 billion queries daily, addressing spam and ensuring email integrity. It highlights the significance of various data types, including blacklists and complaint data, which contribute to establishing sender reputation in a complex digital landscape.

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Principles of a Reputation System: IronPort's 2nd Generation Filters and SenderBase Insights

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  1. Craig Taylor VP, Technology Principles of a Reputation System IronPort’s 2nd Generation Reputation Filters Powered SenderBase 11/10/2004

  2. IronPort C-Series Architecture “Give me a place to stand and I will move the earth” Archimedes

  3. Reputation: Shades of Gray

  4. Principles of a Reputation System • Requirements: • Diversity: Broad diverse set of data sources • Accuracy: Real-time accurate data • Objectivity: Objective and transparent scoring

  5. SenderBase: First and Largest Email Traffic Monitoring Network • 50,000 contributingorganizations • 5 billion queries daily • >25% of world’s Internet email SpamCop, SpamHaus (SBL), NJABL Extensive network of “invalid” accounts SpamCop, ISP abuse data, BondedSender abuse data Spamtraps & Complaint Data Blacklists 3rd party email accreditation Message size, number of attachments, attachment types Message Composition Data Open Proxy Data SORBS, OPM, DSBL… Fortune 1000 status, length of sending history, location, whether domain accepts email, etc. Global Volume Data Other Data 50,000 organizations (25% of all email) Authenticated Unknown Sender Reputation Established

  6. The Power of Data

  7. Identity. Reputation. Policy. MORE INFO AT: www.ironport.com/ftc

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