Which command provides a list of servers used for web filtering and antispam?

The command that provides a list of servers used for web filtering and antispam is the one that allows you to examine the operational status and settings associated with antispam services. Typically, commands concerning diagnostics and operational details are used to gather information about live configurations and server statuses.

The command "diagnose antispam status" is designed to give insights into the current state of the antispam services, including which servers are being utilized. This command will provide real-time information regarding the functionality and connectivity of the antispam servers.

Understanding the context of the other options is important. The command associated with web filtering status is more focused on the performance and settings of web filters, but does not directly relate to the listing of servers used for antispam. Functions that provide specific details about rating or operational statuses don't serve the purpose of listing out those servers either. Thus, the command related to the antispam status is directly tied to the requirements of the question.