OSIgate Comprehensive A.I. AntiSpam Gateway (the A.I. Email Security Platform) ...
OSIgate AntiSpam Gateway is the email security solution helping you to protect your mail server against spamming, phishing, forging threats. The flexible architecture combined with the user friendly, web-based management interface allows IT professionals and businesses to control all incoming and outgoing emails with ease and to protect their users from spam, viruses, phishing and trojans. Organizations of any size can easily implement and deploy the anti-spam and anti-virus platform in only a few minutes. The full featured mail proxy is deployed between the firewall and the internal mail server and allows to control all email traffic from a single platform. OSIgate antispam gateway helps you easily maintain a secure and professional email communication, ensure business continuity, and gain high business reputation as well as customer satisfaction.
OSIgate Antispam Gateway : Spam Email, Phishing Email & Virus infected Email Detection and Defense ...
is a work like a mail proxy server and protects your mail server from all email threats with a focus on spam, viruses, trojans and phishing emails. Deployed between your firewall and the internal email server, all incoming and outgoing email traffic is analyzed and various services for mail filtering are applied, for example the Postfix Mail Transport Agent (MTA), the ClamAV® antivirus engine and the Apache SpamAssassin project.
OSIgate Antispam Gateway integrates ClamAV with the Google Safe Browsing Database.
Anti-Virus Detection
ClamAV is an open-source antivirus engine designed for detecting trojans, viruses, malware and other malicious threats. It provides a high performance mutli-threaded scanning daemon, command line utilities for on demand file scanning, and an intelligent tool for automatic signature updates.
Spam/phishing/spoofing Detection
OSIgate Antispam Gateway
uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages to work around. Every single e-mail will be analyzed and get a spam score assigned. The systems attempt to optimize the efficiency of the rules that are run in terms of minimizing the number of false positives and false negatives.
Filtering Methods
Sender Verification
Many of the junk messages reaching your network are emails to non-existent useres. OSIgate AntiSpam Gateway detects these emails on SMTP level, which means before they are transferred to your networks. This reduces the traffic to be analyzed for spam and viruses up to 90% and reduces the working load on your mail servers and scanners.
Sender policy framework (SPF)
Sender Policy Framework (SPF) is an open standard for validating emails and to prevent sender IP address forgery. SPF allows the administrator of an Internet domain to specify which computers are authorized to send emails with a given domain by creating a specific SPF record in the Domain Name System (DNS).
DNS-based Blackhole List
A DNS-based Blackhole List (DNSBL) is a means by which an Internet site may publish a list of IP addresses, in a format which can be easily queried by computer programs on the internet. The technology is built on top of the Domain Name System. DNSBLs are used to publish lists of addresses linked to spamming.
SMTP Whitelist
Exclude senders from SMTP blocking. To prevent all SMTP checks (Greylisting, Receiver Verification, SPF and RBL) and accept all e-mails for the analysis in the filter rule system, you can add the following to this list: Domains (Sender/Receiver), Mail address (Sender/Receiver), Regular Expression (Sender/Receiver), IP address (Sender), IP network (Sender)
Bayesian Logic - Automatically trained statistical filters
Some particular words have a higher probability of occurring in spam emails rather than in legitimate emails. By being trained to recognize those words, the Bayesian checks every email and adjusts the probabilities of it being a spam word or not in its database. This is done automatically.
Black- and Whitelists
Black- and Whitelists are an access control mechanism to accept, block, or quarantine emails to recipients. This allows you to tune the rule-system by applying different objects like domains, email address, regular expression, IP Network, LDAP Group, and others.
Auto Learning algorithm
OSIgate AntiSpam Gateway gathers statistical information about spam emails. This information is used by an Auto Learning algorithm, so the system becomes smarter over time.
Spam Uri Realtime BlockList (SURBL)
SURBLs are used to detect spam based on message body URIs (usually web sites). This makes them different from most other Real-time Blocklists, because SURBLs are not used to block spam senders. SURBLs allow you to block messages that have spam hosts which are mentioned in message bodies.
Implementation Options : SAAS, Cloud or Dedicated Appliances
OSIgate Email Defense System Appliances. (EDS = AntiSpam Gateway)
- OSIgate EDS-5000 for 200 users
- OSIgate EDS-6000 for 400 users
- OSIgate EDS-7000 for 600 users
- OSIgate EDS-8000 for 800 users
- OSIgate EDS-9000 for 1000 users
- on Dell R240, R340 Enterprises Server for large scale implementation
OSIgate EDS-8000, Quad Core, 8G Ram, 256G Samsung SSD, 6 Giga ports, 2 SPF ports, design for 800~1000 users environment
