Download Anti-spam measures : analysis and design by Guido Schryen PDF

By Guido Schryen

This publication examines anti-spam measures by way of their potentials, barriers, benefits, and disadvantages. those elements ensure to which volume the measures can give a contribution to the aid of unsolicited mail ultimately. It examines legislative, organizational, behavioral, and technological anti-spam measures, together with an perception into their effectiveness. additionally, it offers the conceptual improvement and research of an infrastructural email framework, which positive aspects one of these complementary software, and considers deployment issues.

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Similarly, the phishing e-mail shown in Fig. 12 tries to grab the data of eBay users. org). 3 Spam categories 19 50% 45% 40% 35% 30% 25% 20% 15% 10% 5% 0% Jan Feb Medication/Pills Mar Adult Content April May Stock scams June July Mortgage Dating August Sept Oct Nov Fig. 4 Hoaxes and chain e-mails A hoax is an attempt to trick an audience into believing that something false is real, mostly combined with a recommendation to forward the hoax to as many people as possible. Many e-mail warn the users against viruses, worms, or Trojan horses, some misinform about political or social events, while others are charity hoaxes, joke hoaxes, or commercially oriented, for example by offering free gift vouchers.

4 shows. An Internet mail program must not change a Received entry that was previously added to the message header. SMTP servers must prepend Re3 A CNAME (canonical name) Resource Record defines an alias for a DNS name. 36 3 The e-mail delivery process and its susceptibility to spam ceived entries to messages; they MUST NOT change the order of existing entries or insert Received entries in any other location. Each Received entry corresponds to an SMTP server which adds its trace record at the beginning of the header which it receives.

The SMTP client introduces the new message into the Mail Transfer Agent (MTA) routing network [93], including all Internet Assigned Numbers Authority (IANA)-registered SMTP service extensions, formerly also referred to as ESMTP [92]. 1 Other authentication methods have been applied. org/assignments/mail-parameters for a list of SMTP service extensions. The implementation of SMTP service extensions is not mandatory and must not be assumed. 30 3 The e-mail delivery process and its susceptibility to spam SMTP MTA MTA SMTP Internet SMTP SMTP chain of trust MTA MTA chain of trust receiving organization sending organization SMTP MDA message store POP, IMAP SMTP client MUA MUA recipient sender MTA: Mail Transfer Agent MUA: Mail User Agent MDA: Mail Delivery Agent SMTP: Simple Mail Transfer Protocol Fig.

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