Presentation 2007-07-19
Classifying Mail Servers for Spam Control by Throttling
Makihito Mihara, Kazuyuki Yoshida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The throttling function, which replies slowly at the e-mail reception time, is very useful for controlling spasm at MTA (Mail Transfer Agent). By using this function, however, MTA is easy to become fault load, because MTA needs to maintain a SMTP connection until mail transfer completes or spam sender gives up transmission of e-mail. When huge amount of spams are sent to the MTA, MTA is not able to establish SMTP connection for normal e-mail transfer until mail processing for spams completes. With simple load balancer, there is a danger that all MTAs lapse into fault load. We describe, while the IP address of many of MTA which sends spams have no reverse record in DNS, the load sharing method with little influence on the normal mail is proposed. It was able to be confirmed to achieve the load-balancing corresponding to the number of spams, and to make the influence given to normal e-mail a minimum. Even if huge amount of spams are sent to MTA, it is able to use throttling function for spam control by this system.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) E-mail / spam / spam control / throttling
Paper # IA2007-17
Date of Issue

Conference Information
Committee IA
Conference Date 2007/7/12(1days)
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Paper Information
Registration To Internet Architecture(IA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Classifying Mail Servers for Spam Control by Throttling
Sub Title (in English)
Keyword(1) E-mail
Keyword(2) spam
Keyword(3) spam control
Keyword(4) throttling
1st Author's Name Makihito Mihara
1st Author's Affiliation Dept. of Computer Science and Intelligent Systems, Oita University()
2nd Author's Name Kazuyuki Yoshida
2nd Author's Affiliation Information Processing Center, Oita University
Date 2007-07-19
Paper # IA2007-17
Volume (vol) vol.107
Number (no) 151
Page pp.pp.-
#Pages 6
Date of Issue