tailieunhanh - essential computer security phần 5

hông bộ lọc thư rác cũng có thể cung cấp một mức độ cực kỳ bảo mật cho e-mail của bạn bằng cách cấu hình các bộ lọc thư rác để cho phép các thư gửi đến từ các địa chỉ người gửi an toàn của bạn hoặc Người nhận an toàn danh sách. Trong thực tế, | E-mail Safety Chapter 6 95 failed the spam filter can also provide an extreme level of security for your e-mail by configuring the junk mail filter to allow incoming mail only from addresses that are on your Safe Senders or Safe Recipients lists. In effect rather than blacklisting one by one all of the addresses you don t want to get e-mail from you create a much shorter list of only the addresses you do want e-mail from. Outlook s Junk E-mail options enable you to choose how strict to be with identifying junk email and what to do with it. Figure Outlook s Junk E-mail Options In 2003 the United States Congress passed the CAN-SPAM Act. CAN-SPAM is a snappy acronym for Controlling the Assault of Non-Solicited Pornography and Marketing. Someone in Washington DC is probably making a pretty good salary from our tax dollars to make sure that our laws all have names that fit nicely into some fun code word like CAN-SPAM or the USA-PATRIOT Act which stands for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism. Although the law was created ostensibly to reduce or eliminate spam it actually does as much to legitimize spam as a form of marketing as it does to eliminate it. What the CAN-SPAM act does do primarily is to provide the rules of engagement so to speak for legal marketing via e-mail. CAN-SPAM requires that the purveyors of spam provide some identifiable means for recipients to opt out of receiving any future messages and that no deception is used in transmitting the messages. It 96 Chapter 6 E-mail Safety requires all e-mail advertising to contain a valid reply-to address postal mailing address and a subject line and e-mail headers that are accurate. It provides penalties for any marketer that does not stay within these bounds. In essence under this law a company can still inundate the Internet with useless junk mail and as long as they provide a legitimate reply-to e-mail .