Stop Spam Now

Spam is a crazy growth spread of the epidemic on the universe, created the most repugnant residents of the darkest depths of the human known. Even with new technologies and techniques to limit the amount of spam filling your mailbox, its tough to stay ahead.

This it is hardly surprising that, when the anti - spam software, this is a growth industry. Lianjiang County study estimated that anti-spam software will be installed on as many as 500 million seats in 2008 rose to 11 million in 2003. Choose the right spam management system, is ultimately based on many of the same factors as any other IT deployment decision, mainly the total cost of ownership and return on investment. What you really trying to do is to save dollars, and reduce the efficiency of production. Here, we will examine solutions, 10 representatives of the emerging anti-spam market all built to filter spam on the server level.

Identify your target before, do you have a specific solution, taking a high-level view, and clarified the goals and ideals of any anti-spam technology process or technology: restrict access to your e-mail address: is one of the most powerful and the most effective technology to reduce spam. Restrict or eliminate spam into your e-mail identity, can stop spam at the source. This is even more a problem of internal procedures and policies, so unfortunately did not present a solution to solve the problem. Its important for organizations and individuals, should have a strong e-mail publication policy and audit and control the addresses published on their website. (For example, my e-mail address is listed in the article was the end of the century hit 200 spam day after it first appeared on a Web site).

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identified spammers: restrictions on who will gain access to your e-mail address is difficult, especially when You are fighting intensely spammers and moral suspicious. The next best thing is to identify the senders themselves. Then you can configure an anti-spam solutions, in order to prevent information from the specified address. Identify spam itself: all anti-spam solutions covered here rely on several methods, but they fight spam primarily by detection and isolation. There are indeed a number of specific technologies, including content analysis, keyword recognition, Bayesian filtering. To identify spammers, this approach requires a high degree of accuracy and proper configuration to be effective.

General maturity, as well as anti-spam technology to the fact that everyone is working off the same type of script, most of these products have similar features, with certain nuances and differences in approach. All use some of the more common forms of basic content filtering, blacklists and user profiles. There are differences, although some of them were quite dramatic. We will be able to give you look at how each anti-spam solutions with the performance of respect to spam signature updates, operational parameters and reporting, identify spam, and identify spammers. Spam signature updates spammers are smart. They comply with the changed, the same as cockroaches. A truly effective anti-spam solution needs to have a software update released on a quarterly basis to a minimum, preferably more frequently. What is really important is the vendors long-term commitment to the quality and capability of its anti-spam filters.

Find strong and frequent updates filters rules, signatures, patterns and lists. I can not emphasize this point strongly enough. Spam filtering products are only as smart, they eventually filters or virus signature updates. Best bet is a vendor that automatically keep you updated on the installation of real-time reports. Hourly, daily or even scheduled updates are also ideal, as long as the time between updates is relatively short.

Mailfrontier gateway server and NetIQ mailmarshal company can be configured to automatically update or implement updated to meet customer needs. SurfControl owners constantly updated spam engine, as it modusmail and updated in real time. Choicemail uses a different system, spam identification, it does not need to be updated, but also later.

mailwasher server list of quarantined e-mail, identify the sender and lets you know why it blocked the message. (Click image View larger version).

how it running, as well as how to report Although we only control spam e-mail, in this review, you should also consider other factors , for example, be able to filter and process? It can block IM spam (known as spam), digital fax junk mail, short message service spam? It can detect and remove viruses, worms and Trojan horses? Most major anti-virus products have added anti-spam technology to expand its virus control platform. Control the virus due to the inherent regulation, which is a natural for these enterprises to provide integrated packages, including spam control.

always using many different technologies to a large number of e-mail can lead to system degradation, with the passage of time, therefore, the best solution should be Low system overhead while providing many different tests to send e-mail. You should consider anti-spam control in strategic locations throughout the network. Here, we are considering those and mail servers, but the best design is a multi-layer structure of the different types of anti-spam software, at different points in time mail transmission paths, from the server to the users mailbox. Spam control system should be easy to use and repair, and provide a solid reporting and moderate scale. The most important thing is, it must be easy to update. You should establish a practice of testing, Niunie and refined. At present the systems operation should account for a large part of your overall standards, the choice of solution.

Scalability and reporting is a field, there are indeed Notable differences, 10 solutions. CMS praetor G2 use Microsofts MMC configuration and maintenance. It has an excellent log and log analysis system, a good set of reports and good scalability. Choicemail enterprises is easy to configure, you have a good share of control and a sense of responsibility. It scales well, but the lack of reporting capability is a drawback. Similarly, despite its mailwasher easy to install and configure the server, there is no reporting system. Mailwasher, but this is a very scalable.

GFIs a very mailessentials developed and easy-to-use reporting system that covers the key aspects of anti-spam activities. Filter itself is easily scalable and easy-to-configure. Mailfrontier gateway server has a special reporting system is easy to scale and configuration. Nemx power tools, is more difficult than other configurations, but also did not report, it is scalability.

NetIQs mailmarshal provided a list of electronic e-mail management practices, including editing white and black lists. (Click image View larger version).

NetIQs mailmarshal is also very easy to zoom, and provides detailed, customized reports on various aspects of e-mail activity. It may also be drilled at various levels briefed the individual user activities. You can save and e-mail reports, which provide everything from individual user behavior to the use of bandwidth, spam information, computer virus reports, policy breaches and return on investment. Ihatespam has an exceptional reporting system. NetIQ and companies opt for this system is almost impossible. Its also easy to operate, it is very scalable. SurfControls more limited reporting system, it is easy to operate and scalability is very good. Modusmail is highly configurable, but offers limited reporting. Spam: their identity There are many filtering method, to identify spam, but the general rule of thumb is a different variety of technologies, in the mail transmission path is the best option. The stronger the methods used to combat spam, reduce spam, you will be received with happiness, you will be.

Spam identification technology can be attributed to the bulk Analysis a e-mail information and analysis to decide whether or not the message is spam.

These are the more common techniques: Keyword: This method does not accept any messages containing the word or phrase matching. It is easy to set up, but yield many false positive results.

pattern matching: This method combination, the text, such as keywords, and variable components, such as wildcard characters.

a rule-based (heuristic) filter: a notable progress keyword matching the concept of how those words are used, what they mean is, they revert to each other. Rules-based filtering, provides enhanced decision-making, from advanced building of the rule of law. You can string together several rules to form a decision tree is more effective pass filtering on any specific information.

signature-based filters: These operations, in the implementation of a cost per information and a comparison to its database of known spam messages. Actual calculation known as hash, which is a fixed-length "signature" is often used MD5 algorithm. Long-term message, those with attachments, even those with lots of embedded HTML code, all valid hash signature. However, the change randomly generated each message slightly different hash value. Signed filtering has its place, but its effective only if used in other, more powerful technology.

Bayesian statistical filtering: Bayesian filtering based on the statistical model applied to any form of spam messages can be taken. It has broken the information to the various components of the (individual words), and applies to frequency analysis. Because it is an iterative process, the spam filters are constantly updating their own, independent study and the good from the bad, because mail flows through the system.

difference in the accuracy of statistical filtering over rules-based content filtering is dramatic. If a message from the sender to use a good word freedom (a word re-weighted spam), a blind rules-based filters will rebound, take quick action. Bayesian filters will make it through, because the overall composition are usually accepted. Statistics filter is not only very accurate, they are very efficient. They can adapt to the new technology, innovative spam organizations. Bayesian method is one of the highest evaluation, and should be a key component in your pursuit of a clean mailbox.

All solution here to review the use of multiple filtering methods, But there is a major way. CMS group mailwasher praetor G2 server, GFI companies mailessentials 10.1 mailfrontier gateway server and all use Bayesian filtering. Nemx electric tools and whether they were the first filter, but no content assessment. NetIQs mailmarshal use spamcensor its heuristic engine.

Ihatespam and to the use of SurfControl Heuristic rules-based filtering, although ihatespam and are completely customizable. Modusmail whether the standard content filtration. Choicemail enterprises can only provide limited filter, but it must be designed and means, it can identify and isolate suspicious mail.

Identification of the contents used for spam any means is no longer the main means of spam control. Basically, it has been method to identify spammers, not the message. This was to be expected, because the improper construction of the content filters or rules are more likely to produce false positive and false negative results.

choicemail enterprises to use a challenge / response filtering method , assuming that each spam until you said that. (Click image View larger version).

Bayesian filtering is the best, mainly because of its strong adaptability and iteration, but it should not be become your only technical standards. In fact, in this standard, I have made the highest score for NetIQ heuristic anti-spam engine. Its functional right out of the box office and mailmarshal let you automatically update their spam patterns and definitions, as well as spamcensor engine rules, conduct transactions via the Internet. In short, any anti-spam filters use Bayesian filters as its primary method will be as much as 98 percent to catch up with what is identified as spam. Heuristic anti-spam filtering, in the 95 percent range. Whether these results can be improved with continuous spam signature updates and prudent setting, as you fine-tune systems. Choicemail the lower scores in this Class is from the design, because they have basically abandoned the idea of can identify spam e-mail content. Instead, it uses content filtering, as a rough cut, but also on a challenge / response method war of defense. This type of anti-spam filters more onus on users, its main catches, 100 per cent of all mail. It believed that any spam, until you tell it otherwise. Therefore, only those sent from the e-mail you have specific approval allowed to pass through.

End of the day, any of these anti-spam filtering tools , and only as effective as to the amount of effort you put the configuration and maintenance updates. Can set their own filtering parameters, determine how active your filter will review the flow of spam to your inbox. If you find that you receive a large number of false positives, then you need to adjust your settings. If you are still Lejishengbei spam, the time to configure your filters to a more aggressive level. These filtering mechanism, whether heuristic, Bayesian signature-based or rely on the users, vendors dependent, and even the DNS blacklist dependence.

Identification spammers filter on the basis of identity of the sender or relay has become even more important. Almost all anti-spam solutions have some comprehensive blacklist (Prohibition of the sender) and / or white list (allowing transmitter) technology. Most manufacturers pool their resources and share their blacklist of a network in order to reduce handling, loading and storage resources. As a result of these blacklisted as part of the domain name system, almost every solution.

, Unfortunately, may be blacklisted the effectiveness of a serious problem. Important server can inadvertently find their own way to blacklist, either by mistake or because spam may have slipped in spam gateway, rendering it a "known spammers" . Blacklist, no real control of the particle size, so that the sender either completely blocked or permit any further aspects. To overcome this obstacle, spammers can simply change the address. Based on a blacklist because of the network by outside organizations, high-quality filtering, just as, management of the inventory.

White list is the opposite of the blacklist . A white list identified the sender should remain good through unfiltered. White list is usually better implementation, the user level than in the server level. Challenge and response is another, more cumbersome approach to the implementation of an identity checkpoints, as part of the initial mail handshake. At present e-mail doctrine, established around the "always allow" philosophy. This means that your system take any message is not spam, unless you tell it. The challenge and response method is the assumption that all spam, until proved otherwise. In theory, this is a perfect strategy. The biggest obstacle to rapid and complete adoption of the heavy burden it places on the sender to verify legitimate sender.

The CMS praetor G2 Most filters in the message level, and check DNS blacklist, but also in a SMTP protocol level. It also does not mean that other protocols through a filter IIS service managers, including IP addresses, domain names and address of the sender. You can also create white list. Choicemail enterprises discharge challenge / response, allowing e-mail-based management. It assumes that all e-mail is spam, and only allow it through, if approved by the sender.

Firetrust mailwasher servers connected to filtration, real-time blacklisted servers, white lists. GFI companies mailessentials 10.1 use a white list, black and DNS blacklist. Mailfrontier gateway server also use blacklists, DNS blacklist, the third partys dynamic DNS blacklist services and the creation of the list.

Nemx whether to include electric tools and list and white list, which works well, but somewhat limited, compared to other people. NetIQ Corporation mailmarshal third party can use the DNS blacklist services and the creation of dynamic list. It also has the capability of transmitting to ensure that the e-mail server from relaying the default. (Relayed spammers hide the identity and effective frame, the company is using its e-mail server).

Rest also use a variety of methods . Ihatespam At the same time the use of white and black lists, as well as its own signature file. SurfControl uses, the protection of domain names, reliable IPS, blacklists, reverse DNS View, real-time black hole list and white list. Modusmail maintain a user-class white lists, reverse DNS blacklist, real-time blacklist, in the server level, the agreement filters, SMTP security, fingerprint identification, linking restrictions and obstructing inspections.

After some consideration, I sent choicemail the highest marks for its unique approach. Almost all other minor changes in the use of the same themes identified spammers through a combination of standard methods. The realization of not different enough to distinguish.

Choicemail following a different path. Because it initially believe that all spam, but only allow e-mail from a pre-approved sender or those who have been approved. Filling it with a list of the sender from your existing address book and any of your E-mail. It also allows you to write the rules, and receiving e-mail sender is not on your white list. (For example, if you want to receive e-mail about sailing, you can configure choicemail accept any message, which contains the "Junk").

praetor the G2 filter used in the DNS blacklist message level, or the level of SMTP protocol. (Click image View larger version).

choicemail quarantine, any unsolicited e-mail, and automatically send a "registration request" to every one of the unknown , guiding them to a Web page, they enter their name, e-mail address and reason with you. They must also complete a task, it is very easy to a person, but it is impossible for a computer. This process, only to eliminate the bulk of the spam because spammers can not respond to the registration request. After this process is complete, you decide whether or not to accept the sender. Prevent spam, in the There is no single "winner" in this group of 10 anti-spam software solution is quite predictable results, taking into account the limited parameters, so that anti-spam software to business and the overall maturity This technology. Your determination should be based on the number of Details of factors, rather than major differences in technology or methods of spam filtering.

GFIs mailessentials, the mailfrontier Gateway server and NetIQs mailmarshal all the highest scores, and Sunbelt software ihatespam missing the top three levels, and by a narrow margin. GFI company has always had a good reputation. Mailfrontier some of the best documents in the industry and its Web site is a cornucopia of information. Mailmarshal has an exceptional reporting system and spam identification attribute is the best group. The name ihatespam an excellent reporting system, it is very easy to use, and definitely worth considering.

Digiportal choicemail enterprises have the most thought-provoking approach to spam control. It received a low overall score, but only because it lacks a good reporting system. Vircom the modusmail, CMS praetor G2 group of mailwasher firetrust server and nemx electric tools have great strengths, it is worth considering, because you make your decision.

The war on spam is right. Select a weapon suited to your needs, your organization. This is a delicate balance , message, you have to accept, at the same time allowing harmful spam out of your in-box. Seriously consider and make a wise choice.