Spam

Generally speaking, all without user license is forced to send to a user's mailbox of any E-mail.

Spam profiles

Spam is no very strict definition. Generally speaking, all without user license is forced to send to a user's mailbox of any E-mail.

In spam appears before, an American named Spamford or "junk fu", established a company, specialized for other companies provide fax service charge, because advertising provoke up the receiver antipathy, and waste paper, so the United States legislation prohibited without consent fax ads. Later the advertising turned to junk blessing E-mail, spam and logical to appear.

Spam characteristics

Spam generally has batch send characteristics. The contents include money information, adult advertising, business or personal website advertising, electronic magazine, serial letter etc. Spam can be divided into benign and malignant. Benign spam is various publicity advertisement, etc. To addressee little effects on information mail. Malignant spam refers to the destructive E-mail.

Some observers will from online multiple BBS BBS, newsgroups etc collection of netizens E-mail address, again, thus to advertisers send junk mail to the address. In these mail and can often be found "from the recipient's list remove" links. When users according to link instructions, advertisers will know that this address effective, users will receive more spam.

Along with the spam is getting more and more serious, several software vendors also launched their respective anti-spam software. But "associated a foot, civil zhangs," spam format more rapidly, in order to avoid such software detection.

Spam attack

Some of the rubbish mail organizations or illegal information communicators, in order to spread information area, often USES multiple machines also huge amount to send mail server, the way against losses caused by mail server large bandwidth, and serious interference mail server for normal mail delivery work.

The law of the country

At present, many countries already legislation, trying to try to prevent spam. Many Internet service provider of service policy also include anti-spam, and the establishment of used as complaints email address. Also have some online community, offer mailing analysis and valet sent to related ISP make complaints service.

Spam - making channels

1. The production and sales with special function mail software that has "hidden functions", to avoid the ordinary filters. 2. Production and sales network from intercepted email address tools. 3. Sales from network access to the email address list. 4. Sales have send spam characteristics of services, media or software. 5. Provide sending spam commercial service. 6. For spam maker provide bulletproof service. 7. To provide to the above site links or links steering above site.

Spam - source roots

Refuse to spam 1. All kinds of mailbox automatically collect machine: for an open and extensive network, it is really "lin2 zi3 da4, what bird all have". Remember Altavista proud of web page automatic search robot? Someone according to the same principle, made up some software, sunset night on the climb, collect every page address in the yellow pages company, there are many large databases E-mail address is gained through such (of course they are not necessarily garbage letter carmaker). There are many other newsgroups, BBS specifically for such special mailbox collecting machine. Such software online greatly small Spammer site everywhere can be downloaded for free. The more some business site webmasters, in their email server placed "letterhead scanner", through scanning the business server all E-mail letter head, collect mailbox address. 2. Artificially collection: more is some "backward technology" individual garbage maker, mainly by artificial letter by collecting, log on to others server, obtain the user list ways such as collecting mailbox. Such junk mailbox obtained letter maker although quantity is not like automatic software so much, but because they acquired by artificial analysis, mostly some real address, more harmful. 3. Junk letter maker of transactions between the letter: garbage maker sometimes promise pay (present prices is an address part to a few ranging from MAO), or to change the way mailbox mailbox exchange they collected address, also have some money, will their friends or friend's friend's address sells out to junk letter maker. Note the current BBS and message boards, you can often see these disgusting advertisements. 4. Email list: what is worth mentioning, because the commonly used mailing list server software, like a Listserv, Majordomo, if forget to turn and restricted some webmasters "dangerous" function, can easily be garbage letter maker utilization. In 1998, the south a Christmas home network company's mailing list emanate address somehow be utilized, anyone can become through the address, data repository to the company all the E-mail address to mail the letter.

The difference between spam

The real Email marketing is not send junk E-mail, but junk mail for permission Email marketing influence is so great that research and application Email marketing, cannot but involves spam. In fact, some users it is through junk mail to Email marketing produces an impression, even will Email marketing with spam equate. Below are spam definition and instructions.

Spam harm

Spam can say is that the Internet to humanity's most controversial byproducts, its flood has made throughout the Internet is overwhelmed. 1. Occupy network bandwidth, causing the mail server congestion, thereby reducing the entire network operation efficiency,

2. Infringe upon the recipient's privacy, occupy the recipient mailbox space, expend the recipient's time, energy and money. Some junk mail has to steal other people's email addresses do mail address, seriously harming others reputation,

3. By hackers using into a tool. As in February 2000, hacker attacks such as yahoo five popular web site is one example. Hackers first invasion and took control of some high bandwidth and webmasters concentrated numerous server bandwidth ability, then use tens of millions of millions of spam violent attack target, causing them to be attacked website network congestion, eventually paralysis,

4. Seriously affect your ISP's service image. Internationally, frequent forwarding spam host was superior international Internet service providers listed in the international spam databases, causing the host cannot access the overseas many network. And get junk mail users will not set up perfect because the ISP spam filtering mechanism, and turned to other ISP. A survey showed that each for a user ISP will cost $75, but every year because of junk mail to lose 7.2% of users.

5. I'm so, bogus money, spread pornographic content such as spam, already do harm to social reality.

How to deal with junk mail

Swapping recommendations with GOOGLE's GMAIL, let the anti spam ability is strongest.

Or take professional spam defense server.