What is the Global Cyber Alliance (GCA)?

Global Cyber Alliance is a nonprofit organization improving internet security through practical tools and guidance. For email, they've promoted DMARC adoption through resources making implementation accessible to organizations without specialized expertise.

**GCA** provides **DMARC** implementation guides, free tools for checking configuration, and advocacy explaining **DMARC** benefits to organizational leadership. Their work helped drive **DMARC** adoption beyond technically sophisticated organizations.

For senders, **GCA** resources simplify authentication implementation. Their guides walk through DMARC setup step-by-step. If your organization is implementing **DMARC**, **GCA** materials provide accessible starting points before diving into technical RFCs.