Answer
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Work Step by Step
The firewall for filtering out email messages containing certain terms and phrases would typically be placed at the domain's mail server.
The domain's mail server is responsible for receiving, storing, and delivering email messages. By placing the firewall at the mail server, it allows for more granular control over the filtering process. The firewall can be configured to analyze the content of incoming emails and compare it against a set of predefined rules or patterns to identify and block messages containing specific terms or phrases.
Placing the firewall at the mail server also ensures that the filtering process happens before the emails are delivered to the recipients. This allows for efficient and centralized management of email filtering policies, as all incoming messages can be checked and filtered at a single point.
On the other hand, the domain's gateway is responsible for routing network traffic between different networks, including email traffic. While it is possible to implement some basic email filtering at the gateway level, it is generally more effective to have a dedicated firewall at the mail server level for more advanced and customizable filtering capabilities.
Therefore, to establish a firewall for filtering out email messages containing certain terms and phrases, it is recommended to place the firewall at the domain's mail server.
