GTA's Anti-Spam option offers customizable spam blocking for GTA's firewall email proxy. Simply utilize the email proxy on your GTA firewall for your SMTP email, and activate the Anti-Spam subscription - no software to download and install.

The Anti-Spam greylisting settings offer enhanced email filtering before the email reaches the email server. Greylisting is designed to protect users from spammers that use fire and forget email applications, which are created to send spam messages, but never attempt to retry delivery if the first attempt fails. Greylisting significantly reduces the number of emails which are scanned by spam rules, so email processing is more efficient. With a two pronged attack on email, spam is virtually eliminated while legitimate email is efficiently processed and received at the users inbox.

GTA's Anti-Spam option is powered by MailShell Anti-Spam's Spam Recognition System. This technology reviews each message in fractions of seconds by four spam identification engines utilizing more than 300,000 algorithms and rules to identify spam with a high accuracy rate while preventing false positives. ?Phishing? and other fraud-based definitions are established based on SpamRepute Index, an advanced statistical analysis-based method of quantifying email senders' reputations and is included in the SpamCompiler technology. The results are combined using SpamScore, a proprietary Bayesian statistical formula, into one final spam probability score. The Anti-Spam subscription option automatically check for rules updates to ensure the accurate weighting against the most up-to-date rules for formulation of the spam probability score.