A rare person who has access to the Internet does without creating a mailbox to receive and send e-mail. Even more rare is a person who uses e-mail, and has never received any unexpected advertising list, promises to get rich, having invested mere pennies in the “profitable business”, etc. Such letters are called spam.
Spam (spam) - mass mailing of advertising or other correspondence sent to people who have not expressed a desire to receive it. Primarily, the term "spam" refers to promotional emails.
How to get rid of obsessive "letters of happiness" or advertising? The easiest and cheapest way is passive defense. Do not create mailboxes with simple names, register on suspicious sites, do not respond to spam, etc. These basic rules will allow you to weed out a significant part of the "junk" email.
But what to do if spam comes more and more, if you pay for spam traffic more than for useful information from the network? The conclusion is obvious - it's time to move to action!
Today, there are a large number of anti-spam technologies that allow users to cut off a huge amount of unnecessary mail. Conventionally, this software is divided into two groups: local and global.
Local software is usually email clients that have built-in anti-spam tools. For example, the second service pack for MS Office 2003 has acquired, in addition to fixing numerous shortcomings and vulnerabilities, and an improved anti-spam system. The anti-spam filter is built into Outlook by default. Some email clients, like Mozilla Thunderbird, use the add-on mechanism (the so-called plug-ins), which connect to the main program as desired by the user.
In addition, some email clients provide such service as mail filtering. After receiving a spam letter, you can add the sender's address to the "black list" and all spammer letters will be automatically deleted without downloading them to your computer.
The second group of anti-spam software includes the so-called corporate filters or gateways. Such programs are installed on mail servers, where they track and delete unwanted emails.
The most popular programs of the second group include Anti-Spam "Kaspersky Lab", "Spamooborona" company Yandex, Antispam Gateway company AGAVA Software and several others.
Anti-spam - is an intelligent system that protects from spam corporate mail users. The program filters out spam emails when receiving e-mail before they are delivered to the user's inbox. According to the manufacturer, "high performance and reliability allow using Kaspersky Anti-Spam to filter mail flows of almost any intensity."
«Spam Defense»Yandex has a system for analyzing the contents of the letter. A special analyzer separates the letter into a “clean” component, perceived by a person, and a “dirty” one, which contains invisible information to the user. This allows you to effectively deal with the tricks of spammers, identifying the characteristic features of the design and content of letters. At the same time, an analysis of the technical information about the letter takes place - the accuracy of the information about the sender is checked, the authenticity of the letter headers is analyzed, the specifics of setting up the networks and the senders' mail systems are taken into account.
Company software AGAVA Software has major differences from the aforementioned competitors. The first "plus", according to the developers, is ease of installation, since the filter (gateway) is installed without interfering with the work of the corporate network. The second advantage is the use of technology. Spamprotexxon the basis of which personal filters are built, produced by AGAVA Software.
It is quite obvious that I will not be able to talk about all the technologies and developments in the field of anti-spam - you need to write a separate book. However, I hope that this brief review will help you, dear readers, to discover another effective means of saving your time, money and nerves. All the best to you and good luck!