Donwload Archi.SPAMFILTER brochure
Concept :
Spamming becomes a real problem which generates a reduction of employees’ productivity and a degradation of the bandwidth, representing a cost for companies. Figures speak for themselves: about 50 % of today’s e-mails are spams!
To fight this global plague (the majority of spams is issued from countries outside Europe), the French company Archi.Net offers an ingenious solution which reconciles performance and simplicity. With the on-line externalized service Archi.SPAMFILTER you do not have to care about difficulties due to spams. This solution avoids heavy and expensive investments as the fight against spams is delegated to professionals that guarantee the quality and the availability of the service.
Archi.SPAMFILTER is a sensible combination of the most recent techniques in spams detection: RBL, heuristics, Bayesian method, database of spams, URL addresses, recording of DNS, automatic Whitelists, as well as the latest processes called Greylisting and Teergrubing.
The undesired e-mails are refused even before they arrive on your e-mail server and thus do not block either your network or the mailboxes of your employees, therefore providing a quantifiable improvement of the network performances. Security is another advantage as the solution effectively fights attacks of denial of service, relaying and viruses.
The quality commitment of the company Archi.Net guarantees a low rate of false positive (proper messages considered as spams), which can be harmful to your company.
Based on a standard protocol, Archi.SPAMFILTER is compatible with your e-mail server. This ASP solution is intended for the very small structures as well as the international groups, based on a moderate price.
Archi.SPAMFILTER requires no modification of architecture, no parameter setting and no downloading or installation of software on server or workstation. The Archi.SPAMFILTER service is integrated directly in your existing IT environment. A simple modification of DNS entries is necessary so that e-mails are sent to the Archi.SPAMFLTER servers and then routed after analysis towards your mail server.
Archi.SPAMFILTER is built on a redundant architecture which confers a very high availability thus ensuring a permanent accessibility of your e-mails. Furthermore, if your mail server is unavailable during a lapse of time, your e-mails will be temporarily stored on our Archi.SPAMFILTER servers until your service is restored.
The Archi.SPAMFILTER solution is an externalized anti-spam and antivirus gateway which requires no installation, administration or maintenance, thus no human investment. In other words, your company benefits from techniques of e-mails filtering without any investment; your mails are handled and analyzed in real time before final delivery to your mail server. Besides, Archi.SPAMFILTER improves your network performances and safety by blocking spams even before they reach your server.
At the same time as it guarantees a relevant service, Archi.SPAMFILTER fights your staff’s loss of productivity of and reduces considerably the legal risks: risk for your e-mail server to be used as relay, obligation of employees protection against e-mails with pornographic or offensive content.
The Archi.SPAMFILTER solution integrates the following features:
Anti-spam : Archi.SPAMFILTER stops the undesired electronic messages before they reach your e-mail server and the e-mail boxes of your employees. Archi.SPAMFILTER fights the false positive and assures a rate close to zero.
Anti-virus : Archi.SPAMFILTER includes an antivirus software which works in addition to the antispam filters, thus stopping the viruses transferred via e-mails (note that viruses are more and more spread using spam techniques.).
Anti-relay : Archi.SPAMFILTER fights the relaying, to avoid for your server to be used by a third party to send illicit mails. This fraudulent use of the server generates a problem of availability and quality of service for the company which gets her identity usurped. The relaying engages the responsibility of your company.
Anti-phishing : phishing is a technology named "social ingeneering" and his goal is to stole conection ID & password or Bank card Number ou anything else to be reusable.
Anti-scam : Scams are cyber-frauds by email, which we also call Nigeria 419, sent most of the time from Africa, in which scammers plead with you to get millions of euros, in exchange for a percentage.
Denial of service protection : Your servers are not directly visible any more on Internet but are accessible through Archi.SPAMFILTER. Thus they are not subject to attacks by denial of service.
Archi.SPAMFILTER is a real-time on-line antispam and antivirus system. This service is an externalized gateway by which all your e-mails transit and are sorted out to be redirected towards your servers or rejected in the case of spam or virus. Your mail server receives e-mails without spam or virus.
Archi.SPAMFILTER requires no modification of architecture, no parameter setting and no downloading or installation of software on the user machine. The Archi.SPAMFILTER service is integrated directly in your existing computer environment. A simple modification of DNS entry is necessary so that e-mails are sent to the Archi.SPAMFILTER servers and then routed after analysis towards your e-mail server.
Archi.SPAMFILTER provides access to an administration interface from which you can control how messages are filtered and what actions should be implemented when a spam or a virus is discovered. You can also add your own filters and show your reports and logs of analysis.
If your mail server is unavailable for a while, your e-mails are temporarily stored on our Archi.SPAMFILTER servers until your service is restored.
Archi.SPAMFILTER is a solution which combines judiciously the most recent techniques in detection of spams:
Technologies et principles
Heuristics analysis : The heuristics analysis constitutes a set of rules represented in the form of regular expressions. It looks for e-mails which headers and\or bodies match some very particular characteristics known to have a strong probability of being a spam. Archi.SPAMFILTER uses a database of customized rules to identify spams from different countries.
Blacklists : RBL (Realtime Blackhole List) or DNSBL (Back List DNS) are lists of servers or networks known to help, welcome, produce or broadcast spams or to supply a service which can be used as support for the expedition of spams: OpenSMTP Relay, Open Proxy List (OPL). Archi.SPAMFILTER uses the main RBLs of the market.
Collaborative databases of spams : These databases of signatures of spams are used in the same way as the databases of signatures of virus. They are maintained by the users of antispam solutions.
Recording DNS : Verify the correlation between the IP address of the server source and its name via an inverse DNS request (in - addr.arpa). Generally, real mail servers possess a fixed IP address which is related to its domain name. Although a large number of servers do not possess PTR recordings in the zones of addresses for which their suppliers have authority, it remains interesting to know the information to moderate the results.
Bayesians filters : Probabilistic method of e-mails filtering working by learning and basing itself on the statistical distribution of keywords in mails. This type of algorithm self-adapts by leaning on the analysis of e-mails known as being or not spams.
White list : List of sites, hosts, domains or addresses known to be trustworthy. By default very few hosts are considered as trustworthy because their addresses could be usurped by spammers. However a system of self-learning of white list is used by Altospam to accelerate the time of treatment of issuers already tested and considered trustworthy. Furthermore, Archi.SPAMFILTER allows you to configure your own white list.
History of the transactions : The previously made transactions between the sender and the recipient of a message are used to influence the analysis results. Indeed, individuals used to sending legitimate emails to each others have no reason of exchanging spams.
URL validation : The analysis of the URL within the message body aims at identifying and filtering the e-mail according to the expected action: a click of the user on a promotional link. This analysis is based on the detection of suspicious sites and suspicious url (numerical, badly formatted).
SPF : This antispam technique means Sender Policy Framework. It consists in defining, in a TXT field of a domain, the mail servers authorized to send emails for the same domain (Cf. http://www.openspf.org/)
Teergrubing : This technique allows, by holding a session on certain connections considered as questionable, to reduce significantly the speed of answer of the SMTP server. Teergrubing put constraints on the SPAM server.
Greylisting : Greylising is a very recent antispam technique which consists of rejecting temporarily a message, by issuing a code of temporary refusal to the broadcasting server. Then, the broadcasting server sends the mail a second time after a few minutes; an effort that most of spam servers do not make! (Cf. http://projects.puremagic.com/greylisting/)
Donwload Archi.SPAMFILTER brochure
