What must you do to ensure effective settings for email message protections?

To ensure effective settings for email message protections, it is essential to set appropriate sensitivity labels. Sensitivity labels play a crucial role in protecting information by classifying and labeling content based on its sensitivity. By applying these labels to emails, you can enforce policies that dictate how content should be handled, shared, and protected. This includes controls such as encryption, access restrictions, and rights management.

Correctly configuring sensitivity labels helps to ensure that sensitive information is adequately protected during transmission through email. When sensitivity labels are enforced, they guide the application of security measures, ensuring compliance with organizational policies and regulatory requirements. This alignment is paramount in maintaining data integrity and safeguarding against unauthorized access.

In contrast to other options, regularly reviewing Data Loss Prevention (DLP) policies, creating custom mail templates, and implementing user training programs are indeed worthwhile practices for managing information protection, but they do not directly address the essential task of classifying and protecting email content in the way that sensitivity labels do. Thus, setting appropriate sensitivity labels is the foundational action needed to enable effective email message protections.