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Dmarc Examiner MCP Server

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Dmarc Examiner is answering right now. Last checked 6 min ago. 29 installs a week from npm. It exposes 21 tools. Last commit 19 Aug 2026.

Read your own DMARC aggregate and forensic reports: sources, alignment, alerts, CSV export.

Installs per day peak 12 · avg 6 · +26% w/w
a month agotoday
Uptime history 49 days of history · worst day 57%
49 days agonow
100.0%
Uptime 24h
91 of 91 checks
21
Tools
read from the server
271 ms
Response time
average over 24h
29
Installs / week
npm and PyPI

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 17 August 2026. No other catalogue keeps this.

17 Aug a tool changed version

What the code does

We read the source, 8 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/auth.ts:134
    spawn(command, [url], { detached: true, stdio: 'ignore', shell: process.platform === 'win32' })

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

run in your terminal
claude mcp add mcp --transport http https://mcp.dmarc-examiner.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.dmarc-examiner.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp]
url = "https://mcp.dmarc-examiner.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.dmarc-examiner.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.dmarc-examiner.com/mcp"
    }
  }
}

This one needs environment variables set before it will start: DMARC_EXAMINER_MCP_URL (Override the remote endpoint the bridge connects to. Defaults to https://mcp.dmarc-examiner.com/mcp; only needed for self-hosted or staging deployments.). The author declared them in the registry entry; get the values from the project itself.

Available tools 21

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

forensic
get_forensic_report
Get the full detail of a forensic (RUF) report by UUID, including the raw failed message envelope.
get_forensic_reports_statistics
Aggregated forensic-report counters grouped by auth failure type, delivery result, source IP (with geolocation) and reported domain.
get_forensic_reports_summary
Summary of forensic activity in the last 7 days — useful for daily digest views.
list_forensic_reports
List DMARC RUF (forensic) reports with optional filtering and pagination. Returns 403 if the plan does not include forensic reports (Pro plan and above).
domain
create_domain
Add a new domain to the organization. Response includes the reporting_email and dmarc_record values to publish in DNS. May return 402 if the plan domain limit has been reached.
delete_domain
Remove a domain from monitoring. Soft-deletes; historical reports remain accessible.
get_domain
Get details of a specific domain
webhook
create_webhook
Create a new webhook endpoint. URL must start with https://. Returns 422 if the organization has reached its webhook limit.
delete_webhook
Delete a webhook endpoint permanently.
update_webhook
Update a webhook. Any combination of url, name and is_active may be provided; URL must remain HTTPS.
report
get_report
Get details of a specific DMARC report
get_report_statistics
Get statistics for a specific DMARC report
alerts
list_alerts
List alerts for your organization
dismiss
dismiss_alert
Dismiss a specific alert
dmarc
check_dmarc
Inspect the public DMARC record at _dmarc.<domain>. The domain does not need to belong to your organization. Returns parsed policy and rua/ruf addresses.
domains
list_domains
List all monitored domains in your organization
export
export_report_csv
Export a DMARC report as CSV
reports
list_reports
List DMARC reports for your organization
test
test_webhook
Send a synchronous webhook.test event to verify connectivity. Returns the delivery status. Test events do NOT update last_triggered_at, last_status or failure_count.
verify
verify_domain
Re-check a domain's DNS to confirm the DMARC record contains the organization's reporting email. Updates status to verified on success.
webhooks
list_webhooks
List webhook endpoints configured for the organization. Returns 403 if the plan does not include advanced alerting (Pro and above).

Endpoints

URLTransportStateLatencyChecked
https://mcp.dmarc-examiner.com/mcp streamable-http answering 357 ms 6 min ago

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Dmarc Examiner — questions

Answers built from our own checks of this server.

What can Dmarc Examiner do?
It exposes 21 tools, read directly from the server on our last check. Among them: check_dmarc, create_domain, create_webhook, delete_domain, delete_webhook, dismiss_alert and 15 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Dmarc Examiner mostly used for?
Its tools cluster around forensic, domain and webhook. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Dmarc Examiner working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 271 ms. The bar chart above shows every period we have measured.
How do I connect Dmarc Examiner?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Dmarc Examiner need an API key?
No. Dmarc Examiner completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 21 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Dmarc Examiner?
It answers our handshake in 271 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Dmarc Examiner?
The npm package @dmarc-examiner/mcp was installed 29 times in the last week. Week over week that is +26%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Dmarc Examiner open source?
Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.