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DomainCanary

com.domaincanary/mcp · v1.0.0

Measured by MCP Station

Description written by the publisher, not verified

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

Connect

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

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

Tools as reported by the server

• 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 publish for it. Reads the domain's live DMARC, SPF and DKIM records and returns what is wrong with each, plus the records to add or change.
• 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. Takes provider names such as Google Workspace or Mailchimp, include terms such as include:spf.example.com, or IP addresses, and returns one
• 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. Returns what the receiving server refused, what to change, when it clears, and the page that explains it. Works from the pasted text alone and
• 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 receivers such as Google and Yahoo email to the address in a domain's rua tag. In ChatGPT, pass the uploaded file. Elsewhere, pass the report XML a

Website · JSON · Text for agents · Registry updated 2026-10-03