In-depth architectural comparison of the DMARKOFF — DMARC, SPF & DKIM Analytics and Shield MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
DMARKOFF — DMARC, SPF & DKIM Analytics
Security · Local stdio
Quality: 27/100 (Emerging) | Auth: No auth required
Shield
Security · Local stdio
Quality: 61/100 (Good) | Auth: No auth required
Verdict Summary: Choose DMARKOFF — DMARC, SPF & DKIM Analytics if you need specialized Security tools running via a local process. Choose Shield if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
DMARC analytics for AI assistants — domain health, SPF/DKIM records, compliance stats, anomalies.
Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. MCP supply-chain protection: TOFU tool-catalog pinning against rug pulls, plus tool-description and tool-result scanning for tool poisoning and prompt injection. 51 starter rules, approval gates, audit logging. Single binary, Apache-2.0.
Category & Scope
Tools & Capabilities Breakdown
DMARKOFF — DMARC, SPF & DKIM Analytics Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Shield Tools (6)
Intercepts and blocks destructive tool calls with 65+ adaptive rules
Supports local stdio and remote Streamable HTTP MCP servers
TOFU pinning of tool catalogs to prevent supply-chain attacks
Audit logging and approval gates with optional biometric verification
Reversible secret cloaking to hide credentials from model context
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
DMARKOFF — DMARC, SPF & DKIM Analytics is categorized under Security and uses a local stdio subprocess. In contrast, Shield belongs to Security using local stdio subprocess. Select DMARKOFF — DMARC, SPF & DKIM Analytics when you need capabilities focused on security and Shield when you require tools for security.