Sendmarc DMARC Management Platform is a cloud-based email authentication management solution that enables organizations to enforce, monitor, and manage DMARC policies across single or multiple domains. The platform covers the full email authentication stack, including DMARC, SPF, DKIM, BIMI, MTA-STS, and TLS-RPT. It provides aggregate (RUA) and failure (RUF) report processing, sender identification and grouping, forward classification, and location-based reporting. Policy management capabilities include SPF flattening, DKIM key management, BIMI configuration, and enforcement of DMARC policies (none, quarantine, reject). Threat intelligence features include automated monitoring and alerts, lookalike domain scanning, dark web and breach scanning, and compliance level monitoring. Access management is handled through role-based user management, divisional access controls, Two-Factor Authentication (2FA), Single Sign-On (SSO), and user activity logging. The platform is designed for multi-tenant deployments, making it suitable for MSPs, MSSPs, and channel partners, with co-branded options and task management for partner workflows. Sendmarc holds ISO 27001 and SOC 2 certifications. It includes built-in compliance alignment for Microsoft, Google, and Yahoo email sender requirements, and offers a DMARC compliance certificate upon achieving full enforcement. An API is available for programmatic access, and the platform integrates with PSA tools (ConnectWise) and automated DNS setup via Entri. Email, DNS, and debugging tools are also included.