com.domaincanary/mcp

up checked 2026-11-11T06:38:35.748Z

Unclaimed · Unverified

Publisher-provided title

DomainCanary

Publisher-provided description

Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports.

Summary by lookupd

Checks domain DMARC, SPF and DKIM setup, builds SPF records, explains bounce messages and analyzes DMARC aggregate reports.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mcp https://domaincanary.com/mcp

Codex, remote (streamable-http)

codex mcp add mcp --url https://domaincanary.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://domaincanary.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

check_domain Use this when someone asks whether a domain's email authentication is set up correctly, why mail from a domain fails DMARC, SPF or DKIM, or which DNS records to
build_spf Use this when someone lists the services that send their email and wants the SPF record to publish, or wants a sender added to the SPF record they already have.
explain_bounce Use this when someone pastes a bounce message, an SMTP reply such as 550 5.7.26, or an Authentication-Results header and asks what it means or how to fix it. Re
analyze_report Use this when someone has a DMARC aggregate report and wants to know which senders passed and which failed. The report is the XML, .gz or .zip file that receive

Version: 1.0.0
Transports: streamable-http
Uptime (7 days): 100%
Median latency: 360 ms
First indexed: 2026-11-01T08:53:45.087Z
Last seen in registry: 2026-11-01T08:53:45.087Z
Website: https://domaincanary.com/guides/check-your-domain-from-chatgpt-or-claude

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/com.domaincanary/mcp.svg)](https://lookupd.com/servers/com.domaincanary/mcp)