Before an outbound campaign starts, the sending domain should be checked for SPF, DKIM, DMARC, and reputation warning signs. That makes Beacon a useful resource for cold-email educators, communities, and consultants. Partners earn 50% recurring for the life of referred customers, with a 30-day cookie. Put the free check into a setup lesson, checklist, or resource page. Tell students exactly what it does and disclose the affiliate relationship.