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EA

Email Auth Checker

Unverified Claim & verify → Communication

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

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Overview Installation

Overview

Email Auth Checker is an MCP server that validates email authentication protocols for any domain. It performs SPF, DKIM, DMARC, and MTA-STS checks, verifies domain expiry, and includes SPF lookup counts to help diagnose email deliverability issues. Any MCP-compatible AI assistant can call these tools directly during conversations or agent runs.

The server runs remotely at https://email-auth-check.quietworklabs.workers.dev/mcp with no local installation required. Simply point your client to that endpoint and you're connected. The current release is v1.0.0, and no authentication is needed to use it.

Email Auth Checker is categorized as Communication on mcp.site and works with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server, claim this listing to verify ownership and keep information up to date.

▸Hosted endpoint — Streamable HTTP · https://email-auth-check.quietworklabs.workers.dev/mcp

Installation

Settings → Connectors → Add custom connector
Name: Email Auth Checker
URL:  https://email-auth-check.quietworklabs.workers.dev/mcp

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