DMARC Policy

A DMARC policy is a domain-level email authentication instruction published in DNS that tells receiving systems how the sender wants messages failing aligned SPF or DKIM checks to be handled. Common policy choices include monitoring without requested enforcement, quarantine, and rejection, with optional reporting. For a cleaning company using its own domain, DMARC can help detect spoofing attempts and coordinate email authentication. Configuration should be tested carefully so legitimate services sending on the company's behalf are not disrupted. DMARC is not a replacement for SPF or DKIM, and a published policy does not guarantee that every receiver will apply it identically.