Watchguard Network Security Practice Test

What is configured for incoming SMTP traffic when allowing connections to example.com?

1. Allow Incoming connections to the example.com domain only

2. Allow Outgoing connection from example.com

3. Deny Incoming connections to the example.com domain only

4. Deny outgoing connections from example.com

The correct answer is: Allow Incoming connections to the example.com domain only

When allowing connections to the example.com domain specifically for incoming SMTP traffic, the most appropriate configuration would indeed be to allow incoming connections to that domain only. This means that any email server or client attempting to send SMTP requests to the server identified by example.com would be granted access. Incoming connections refer to the capacity to accept emails or messages sent from external sources to this particular domain. SMTP (Simple Mail Transfer Protocol) is the standard protocol used for sending emails, and configuring the settings in this way ensures that only the specified domain is permitted to establish these types of connections, enhancing security and minimizing the risk of spam or malicious traffic targeting other domains or the server itself. By contrast, the other options deal with either outgoing connections or deny incoming traffic, which do not align with the goal of specifically allowing SMTP requests to a targeted domain.