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- IPv6 and Spam
- Implementation of Internet Protocol version 6 (IPv6) appears necessary for further growth and development of integrated communications networks. However, this important enhancement to the Internet Protocol has failed to gain widespread acceptance. This paper highlights that the persistence and sophistication of spam reduces incentives to deploy IPv6. The analysis suggests...
- White papers 2009-03-04
- The Robustness of New Email Identification Standards
- Vulnerabilities in email protocols allow spammers to readily hide their true identities. These shortcomings have motivated proposals for new standards for authenticating messages. Sender Policy Framework SPF and DomainKeys Identified Mail DKIM represent two such mechanisms. Both authentication schemes are nevertheless open to abuse by spammers. This paper explores the...
- White papers 2008-10-01
- The Dangerous Economics of Spam Control
- The adoption of a wide range of regulatory and technical measures against spam has not constrained its growth and sophistication. This paper provides a novel explanation for this puzzle by emphasizing the technological tradeoffs between the accuracy and speed of filters facing network providers in the early to mid- 2000s....
- White papers 2008-03-22
- High Speed Image Part Recognition (IPR)
- As anti-spam filters have improved in their capacity to process text based messages, spammers have learned to convey their advertisements using a number of different "Envelopes". These envelopes include documents, pdf files and graphical formats. Although it is relatively easy to construct antispam filters that read and process content embedded...
- White papers 2007-09-18
- Fingerprinting Versus Bayesian Filtering
- This paper reviews performance and other criteria of leading open source and commercial applications relevant for network administrators and managers when evaluating their choices between the two general classes of technologies. Specifically, the analysis compares the features of three leading fingerprint systems (eXpurgate, commtouch, and Mailshell) with two filters that...
- White papers 2007-09-17
- Network Costs of Spam
- More than 80% of all emails are spam. Spam is also becoming a significant problem in mobile messaging. This paper provides an overview of costs facing large organizations, such as multinational enterprises, universities, and governments, as well as small and medium sized businesses that own or operate networks used by...
- White papers 2007-07-01
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