Sendmarc is a DMARC implementation and management platform designed to help organizations authenticate their email domains and gain full visibility of their email-sending ecosystem. The platform consolidates and analyzes data from multiple email service providers, enabling teams to assess configuration issues, monitor authentication activity, and identify unauthorized senders. Our guided implementation process supports organizations in safely moving toward a DMARC enforcement policy, reducing email impersonation and spoofing risks while ensuring that legitimate email continues to flow as expected. The platform is built to minimize configuration errors and provide clear, actionable reporting so teams can make informed decisions. Sendmarc focuses exclusively on DMARC, SPF, DKIM, and related email authentication standards. Customers work with engineers experienced in these protocols, and many organizations reach full domain protection within a 90-day period. This approach helps organizations strengthen their email security posture, meet industry compliance requirements, improve visibility, and support more reliable email delivery.