No Spam Today No Spam Today! for Servers 3.0.5.1 Trial An email spam filter that works as SMTP proxy server.
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No Spam Today Description

An email spam filter that works as SMTP proxy server. No Spam Today! accepts incoming mail from the open internet, checks it for spam, and then delivers it to your existing SMTP mail server (SMTP Server software). NoSpamToday! for Servers is a server-based anti spam filter that protects any SMTP or POP3 mail server against spam. It is the ideal anti spam product for MS Exchange, Lotus Domino, IMail and any other mail server software. Its flexible proxy architecture makes it very easy to integrate NoSpamToday! into any existing E-mail environment. Traffic limiting protects your mail service from flooding or directory harvest attacks. Recipient addresses can be checked while a message is submitted, avoiding the backscatter problem caused by some mail servers trying to send non-delivery notifcations to forged sender addresses. With NoSpamToday! you have online access to view statistics charts and reports in real-time using a web browser, or using the NoSpamToday! admin application. Data available online includes spam statistics, mail logs (a listing of mails received, including subject, sender and recipient address), and a ranking of spam hosts (hosts submitting spam mails ie. in the last 24 hours). The user interface is designed to allow easy, fool-proof configuration. Configuration changes are validated before they are accepted, and the user receives a warning before he can make a configuration error. Here are some key features of "No Spam Today SMTP Proxy": Seamless Integration Into Any Existing E-Mail Environment NoSpamToday! was designed to make the integration into existing E-mail environments very easy. This flexibility is achieved by implementing NoSpamToday! as a completely transparent SMTP/POP3 proxy. NoSpamToday! allows to configure an unlimited number of SMTP or POP3 proxy ports (full multi-domain support). Highly Adaptive through a Wide Range of Mail Filtering Policies NoSpamToday! provides a lot of different Mail Filtering Policies, which enables each customer to configure it exactly according to their respective corporate policies. Flexible Filter Chain Architecture NoSpamToday!'s Filter Chain Architecture provides an open interface (Open source media player) to extend NoSpamToday!'s functionality by integrating third-party tools, e.g. for email classification and automated processing or for server-based email encryption. Easy To Use Setup and Wizard-based Configuration NoSpamToday! comes with a complete one stop setup that installs one of the world's most advanced and thorough anti spam filters (Spam Monitor) on your server in a matter of minutes. It has an easy to use Wizard-based configuration interface both simple to use and highly versatile. Advanced Content Checking and Processing NoSpamToday! already provides a lot of different built-in Mail Filters to perform all kinds of checks and processing of incoming E-mails. Attachment Filter NoSpamToday! for Servers not only protects you against spam and phishing mails, it also provides a built-in attachment blocker to filter out all kinds of malicious attachments. AntiVirus Filter NoSpamToday! for Servers provides built-in support for all popular virus checkers to protect you against virus attacks Delay Filter NoSpamToday! for Servers can be configured to use a built-in delay filter to stop spammers from delivering junk mails to your server. The Delay Filter itself actually blocks up to 73% of all junk mails while causing only minimal resource usage on the host system. SpamAssassin Filter NoSpamToday! integrates the award-winning SpamAssassin, one of the world's most advanced spam filtering engines to protect you against spam mails. It uses a lot of advanced spam detection techniques including Email Header Analysis Keyword Checking and Text Analysis Bayesian Spam Filtering Realtime DNS Blacklist (DNSBL, RBL) Checking Multiple SURBL (Spam URI Realtime Blocklist) Checking SPF (Sender Policy Framework) Support Automatic Whitelist Management White and Black Lists SpamTrap Filter The SpamTrap filter automatically keeps the SpamAssassin filter up-to-date by training a Bayes database with incoming spam mails. Protection Against Directory Harvesting Attacks NoSpamToday! also protects your mail server against Directory Harvesting Attacks Open Relay Protection NoSpamToday! prevents that your SMTP server becomes an open relay. Mail Flooding Protection NoSpamToday! also offers protection against mail flooding caused e.g by non-delivery reports. Email Archiving NoSpamToday!'s Mail Storage filter can be used to automatically archive all inbound and outbound mails directly on the server without any user interaction. Extensive Reporting, Statistics and Logging Facilities The extensive reporting, statistics and logging facilities of NoSpamToday! for Servers provide the system administrator with up-to-date status information of all kinds including realtime charts as well as statistical data. Requirements: Filtering messages requires more CPU performance than just receiving messages, so the server running the filter should perform at least as well as your mail server. To process 1000 mails per hour, an 800MHz CPU should be sufficient. As a rule of thumb, NoSpamToday! can process one message per Mhz of CPU clock frequency. 512MB RAM. Each concurrent instance of the SpamAssassin filtering engine requires about 20-30MB of memory. To optimize throughput, NoSpamToday! runs the SpamAssassin engine only if all the other mail filters are unable to determine that a mail is spam. Limitations: 30 days free trial

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