Which of the following is a feature that allows you to moderate mail sent to designated distribution lists?

The feature that allows you to moderate mail sent to designated distribution lists is message moderation. This functionality is essential in managing the flow of information to groups, particularly to ensure that the content being shared is appropriate and that proper communication protocols are followed.

Message moderation enables designated moderators to review emails sent to a distribution list before they are distributed to all members of the group. This adds a layer of control, helping to prevent spam or unwanted messages from reaching group members, thereby maintaining the quality of communication within the distribution list. The moderators can approve or deny messages based on content, sender, or other criteria, ensuring that only suitable content is shared.

Other options, while related to email and communication management, do not specifically provide the same level of control and oversight over messages sent to distribution lists. For instance, email forwarding simply redirects emails to another address without any approval process, and group filtering operates on rules to manage messages but doesn't offer a review process before messages are sent.