Which Microsoft 365 feature can restrict users from sending emails containing sensitive customer information?

Data loss prevention (DLP) policies are specifically designed to help organizations protect sensitive information. These policies can identify, monitor, and protect data across Microsoft 365 applications, including email. By implementing DLP policies, organizations can set rules that automatically block or restrict the sending of emails that contain sensitive customer information, such as credit card numbers, social security numbers, or other personally identifiable information.

When a user attempts to send an email that violates a DLP policy, they may receive a warning message or the email may be blocked entirely, depending on how the policy is configured. This is crucial for maintaining compliance with various regulations and protecting customer data.

In contrast, retention policies focus on managing the lifecycle of data, including how long certain types of data should be kept or deleted, rather than on preventing the sharing of sensitive information. Conditional access policies regulate how users can access resources based on specific conditions, such as their location or the device they are using. Information barriers are designed to prevent certain groups or individuals from communicating with each other, which is more about controlling collaboration and communication flows than protecting specific sensitive data within emails.