The "None" or "Ignore" policy within DMARC serves as a passive monitoring tool rather than an active enforcement mechanism. With this policy, domain owners gain visibility into email traffic without affecting message delivery. Emails failing DMARC authentication aren't necessarily acted upon; instead, domain owners receive aggregate reports detailing authentication results. This policy is ideal for organizations in the initial stages of DMARC implementation, allowing them to understand their email ecosystem before transitioning to more stringent policies. By monitoring authentication results, domain owners can gradually refine their DMARC configurations and address any issues before moving to stricter policies.