Brightmail not updating

The basic security functions that every email security gateway performs are fundamentally the same: antivirus, antimalware, antiphishing and antispam.Buyers must be aware that this does not imply all gateways are equally effective when it comes to detecting and stopping threats.The Trend Micro products also support sandboxing through an optional add-on called the Deep Discovery Analyzer, and the Sophos Email Appliance supports sandboxing with the addition of Sophos Sandstorm.

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Examples of these advanced techniques include deep content analysis, file retrospection and advanced content filtering.

For those products that offer threat intelligence, it is important to learn not only about the overall quality of the threat intelligence feature, such as what sources it comes from, but also how often the vendor updates it and how often those updates are transferred to the gateway itself.

Ideally, updates should be made in near real time, such as every few minutes.

Unwanted content in email messages includes malware, phishing attacks and spam.

Some email security gateways can also detect and block the transmission of sensitive data, such as credit card numbers, social security numbers and healthcare records.

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