After you install the Barracuda Email Security Gateway, the system begins filtering incoming email based on the default settings. The system automatically checks incoming email for viruses and uses the Barracuda Reputation service to identify spam. See the articles below to tune your Barracuda Email Security Gateway appliance or virtual machine.
See also Cloud Protection Layer, an optional feature of the Barracuda Email Security Gateway which provides an additional layer of cloud-based protection that blocks threats before they reach your network, prevents phishing and zero day attacks, and provides email continuity. Once email passes through the Cloud Protection Layer, the Barracuda Email Security Gateway filters email according to the more granular policies, further recipient verification, quarantining, and other features you configure on the appliance or virtual machine. To configure, see How to Set Up Your Cloud Protection Layer.You’ll use Barracuda Cloud Control for central management of your Cloud Protection Layer and your Barracuda Email Security Gateway(s).
Advanced Threat Protection
The subscription-based Advanced Threat Protection (ATP) service analyzes inbound email attachments in a separate, secured cloud environment, detecting new threats and determining whether to block such messages. ATP offers protection against advanced malware, zero-day exploits, and targeted attacks not detected by the Barracuda Email Security Gateway virus scanning features. ATP is available with the Cloud Protection Layer (CPL).
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