# DMARKOFF — DMARC, SPF & DKIM Analytics

Connects DMARC, SPF, and DKIM analytics to your AI assistant. Useful for spotting sender misconfigurations and preparing domains for p=reject.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 8
- Author: dmarcoff
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/dmarcoff/mcp
- Updated: 2026-10-20
- HTML: https://affpapa.org/en/nevibecode/mcp/dmarkoff-dmarc-spf-dkim-analytics

## What it does

This server routes email verification diagnostics directly into coding assistants via the Model Context Protocol. It checks delivery compliance across registered domains and flags failing senders. You can inspect SPF lookups, evaluate DKIM selectors, and see report volume changes compared to a 14-day baseline.

Setup requires an active DMARKOFF account and a personal API key. The remote server runs at `https://mcp.dmarkoff.com/mcp` and exposes tools such as `get_domain_full_data`, `get_domain_anomaly_report`, and `projects_overview`. Without a valid API key, queries fail immediately.

## Requirements
- Remote server: `https://mcp.dmarkoff.com/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http dmarkoff-dmarc-spf-dkim-analytics https://mcp.dmarkoff.com/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add dmarkoff-dmarc-spf-dkim-analytics --url https://mcp.dmarkoff.com/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "dmarkoff-dmarc-spf-dkim-analytics": {
            "url": "https://mcp.dmarkoff.com/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "dmarkoff-dmarc-spf-dkim-analytics": {
            "type": "http",
            "url": "https://mcp.dmarkoff.com/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http dmarkoff-dmarc-spf-dkim-analytics https://mcp.dmarkoff.com/mcp
```

## When to use it
- Identify mail senders causing SPF authentication errors
- Verify if a domain is ready for p=reject enforcement
- Detect email traffic drops against a 14-day baseline
- Count DNS lookups inside complex SPF records

## Example prompts
- Check example.com: why is SPF failing and which mailer caused it?
- Can example.com safely switch to p=reject right now?
- List all projects that currently show a critical severity rating

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