Email Auth Checker

Official registry Productivity

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code
claude mcp add --transport http email-auth-checker 'https://email-auth-check.quietworklabs.workers.dev/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code)
{
    "mcpServers": {
        "email-auth-checker": {
            "type": "http",
            "url": "https://email-auth-check.quietworklabs.workers.dev/mcp"
        }
    }
}

Frequently asked questions

What is Email Auth Checker?

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.

How do I install Email Auth Checker?

It runs as a remote server. In Claude Code: claude mcp add --transport http email-auth-checker 'https://email-auth-check.quietworklabs.workers.dev/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Email Auth Checker need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains Email Auth Checker?

It is published by dev.workers.quietworklabs.email-auth-check. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.