Anti-Spam Measures: Analysis and Design by Guido Schryen PDF
By Guido Schryen
This e-book examines anti-spam measures by way of their potentials, barriers, merits, and downsides. those elements be sure to which quantity the measures can give a contribution to the aid of junk mail ultimately. It examines legislative, organizational, behavioral, and technological anti-spam measures, together with an perception into their effectiveness. additionally, it provides the conceptual improvement and research of an infrastructural e mail framework, which beneficial properties this type of complementary program, and considers deployment issues.
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Additional info for Anti-Spam Measures: Analysis and Design
48f]. In Germany, spamming can be regarded as an intrusion into a company’s commercial activities according to §1004 B¨ urgerliches Gesetzbuch (German Civil Code) (BGB) 2002 [94, p. 30]. In Austria, the sending of e-mails to more than 50 recipients with the purpose of direct marketing violates §107 Telekommunikationsgesetz (Austrian Law of Telecommunications) (TKG), unless the recipient has given acceptance prior to the sending. S. CANSPAM Act of 2003 (see Subsect. 2), in principle, authorizes senders of commercial e-mails to send their UCE, unless the recipient has explicitly refused its receipt (§1037): “(A) It is unlawful for any person to initiate the transmission of any commercial electronic mail message to a protected computer unless the message provides (i) clear and conspicuous identiﬁcation that the message is an advertisement or solicitation; (ii) clear and conspicuous notice of the opportunity under paragraph (3) to decline to receive further commercial electronic mail messages from the sender; and (iii) a valid physical postal address of the sender.
In the following, we try to qualify and categorize the harm that spam can cause in order to support further quantitative analysis of total spam costs. 4 gives an overview of the types of harm and the participants that are aﬀected. We denote spam’s economic harm as “direct” if it is caused by the fact that spam e-mails occur. An example is the costs for increased network bandwidth. Costs are categorized as indirect if the harm emerges from actions or missing actions that result from spam e-mails.
With the increased use of Network Address Translation (NAT) may come a need for additional information in log ﬁles. As long as there is a 1:1 mapping between the addresses inside the NAT and the addresses used outside it, everything is alright, but if the NAT box also translates port addresses (to combine many internal hosts into one external address) it will be necessary to log not only the IP addresses of spam hosts but also the port addresses. Otherwise, we will not be able to identify the individual host inside the NAT .
Anti-Spam Measures: Analysis and Design by Guido Schryen