What should organizations regularly review to maintain email security compliance?

To maintain email security compliance, organizations should regularly review audit logs of email activity. Audit logs are critical for tracking and documenting all activities related to email usage within an organization. They provide insights into who accessed email accounts, when actions were taken, any security incidents that occurred, and how data was handled.

By analyzing these logs, organizations can identify trends, detect potential security breaches, and ensure adherence to compliance regulations. This continuous monitoring allows for timely responses to suspicious activities and helps reinforce best practices around email security, ultimately protecting sensitive information from unauthorized access and mitigating risks associated with data breaches.

The other choices may seem relevant but do not directly contribute to comprehensive compliance monitoring related to email security. For instance, reviewing random email content may not provide a complete picture of security events, while user preferences in email settings and availability of email storage space focus on operational aspects rather than compliance and security assurance.