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Prioritized e-mail servicing to reduce non-spam delay and loss: a performance-cost analysis

Marsono, Muhammad Nadzir and El-Kharashi, M. Watheq and Gebali, Fayez (2007) Prioritized e-mail servicing to reduce non-spam delay and loss: a performance-cost analysis. International Journal of Network Management, 18 (4). pp. 325-344. ISSN 1055-7148

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Official URL: http://dx.doi.org/10.1002/nem.664


This paper proposes a prioritized e-mail servicing on e-mail servers to reduce the delay and loss of non-spam e-mails due to queuing. Using a prioritized two-queue scheme, non-spam e-mails are queued in a fast queue and given higher service priority than spam e-mails that are queued in a slow queue. Four prioritized e-mail service strategies for the two-queue scheme are proposed and analyzed. We modeled these four strategies using discrete-time Markov chain analysis under different e-mail traffic loads and service capacities. Non-spam e-mails can be delivered within a small delay, even under heavy e-mail loadings and high spam-to-non-spam a priori. Results from our analysis of the two-queue scheme show that it gives non-spam delay and loss probability two orders of magnitude smaller than the typical single-queue approach during heavy spam traffic. Moreover, prioritized e-mail servicing protects e-mail servers from spam attacks.

Item Type:Article
Uncontrolled Keywords:e-mail servers; discrete-time Markov chain; spam e-mail
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:8668
Deposited On:27 Jul 2009 05:00
Last Modified:27 Jul 2009 05:00

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