MCP Integration

DMARC Examiner supports the Model Context Protocol (MCP), an open standard that lets AI assistants interact with external tools and data sources. With the MCP integration, you can query your DMARC data directly from AI assistants like Claude Desktop, Claude Code, and Cursor.

What You Can Do

Once connected, you can ask your AI assistant natural-language questions about your DMARC data:

  • "Show me all my monitored domains"
  • "What's the pass rate on the latest report for example.com?"
  • "Are there any critical alerts I should look at?"
  • "Export the latest report as CSV"
  • "Which countries are sending the most failing emails?"

The AI assistant uses DMARC Examiner's tools behind the scenes to fetch and present the data.

Setup

Claude Desktop

Add the following to your Claude Desktop configuration file:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "dmarc-examiner": {
      "url": "https://mcp.dmarc-examiner.com/mcp"
    }
  }
}

Restart Claude Desktop after saving.

Claude Code

Run this command in your terminal:

claude mcp add dmarc-examiner --transport http https://mcp.dmarc-examiner.com/mcp

Cursor

Add to your Cursor MCP settings (Settings > MCP):

{
  "mcpServers": {
    "dmarc-examiner": {
      "url": "https://mcp.dmarc-examiner.com/mcp"
    }
  }
}

Alternative: npx (for clients without remote HTTP support)

If your MCP client doesn't support remote HTTP servers, you can install directly from GitHub:

{
  "mcpServers": {
    "dmarc-examiner": {
      "command": "npx",
      "args": ["-y", "github:dmarc-examiner/mcp"]
    }
  }
}

Authorization Flow

The first time you use DMARC Examiner tools in your AI assistant, you'll be guided through an authorization flow:

  1. Browser opens — Your AI client opens a browser window to the DMARC Examiner authorization page
  2. Log in — If not already logged in, you'll be asked to sign in to your DMARC Examiner account
  3. Select organization — Choose which organization's data you want to access
  4. Approve scopes — Review and approve the permissions the AI assistant is requesting
  5. Connected — The browser redirects back and your AI assistant is ready to use

Your authorization is stored locally by your MCP client. You won't need to re-authorize unless your token expires or you revoke access.

Scopes

During authorization, you'll be asked to approve one or more scopes. Each scope grants access to specific tools:

Scope Description Tools
domains:read View monitored domains list_domains, get_domain
reports:read View reports and statistics list_reports, get_report, get_report_statistics
reports:export Export reports to CSV export_report_csv
alerts:read View alerts list_alerts
alerts:manage Manage alerts dismiss_alert

You can uncheck scopes you don't want to grant. If you later need a tool that requires an unapproved scope, your AI assistant will prompt you to re-authorize with the additional scope.

Available Tools

list_domains

List all monitored domains in your organization.

Parameter Type Required Description
page number No Page number
per_page number No Results per page

get_domain

Get details of a specific domain.

Parameter Type Required Description
domain_id string Yes The domain UUID

list_reports

List DMARC reports with optional filtering.

Parameter Type Required Description
domain_id string No Filter by domain
date_from string No Start date (ISO 8601)
date_to string No End date (ISO 8601)
page number No Page number

get_report

Get a detailed report including all individual records with geolocation.

Parameter Type Required Description
report_id string Yes The report UUID

get_report_statistics

Get aggregated statistics for a report, grouped by country, ASN, and authentication result.

Parameter Type Required Description
report_id string Yes The report UUID

export_report_csv

Export a report's records as a CSV file.

Parameter Type Required Description
report_id string Yes The report UUID

list_alerts

List security alerts with optional filtering.

Parameter Type Required Description
severity string No Filter: info, warning, critical
status string No Filter: pending, sent, dismissed
page number No Page number

dismiss_alert

Dismiss a specific alert.

Parameter Type Required Description
alert_id string Yes The alert UUID

Troubleshooting

"Authorization failed" or "401 Unauthorized"

  • Make sure you completed the authorization flow in your browser
  • Try removing and re-adding the MCP server in your client's settings
  • Check that your DMARC Examiner account is active

Tools not appearing

  • Restart your AI client after adding the MCP server configuration
  • Verify the URL is correct: https://mcp.dmarc-examiner.com/mcp
  • Check your client's MCP logs for connection errors

"Insufficient scope" error

You approved the connection without granting all scopes. Re-authorize by removing and re-adding the MCP server, or your AI assistant will automatically prompt you to approve the missing scope.

Connection timeout

  • Check your internet connection
  • Verify that mcp.dmarc-examiner.com is reachable
  • If behind a corporate firewall, ensure outbound HTTPS traffic to port 443 is allowed

Revoking Access

To disconnect your AI assistant from DMARC Examiner:

  1. Remove the dmarc-examiner entry from your MCP client's configuration
  2. Restart the client

The access tokens stored locally will no longer be used. Tokens expire automatically after 30 days of inactivity.