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DomainCanary

MCP serverVerified domain · domaincanary.comRemote● LiveFree to try

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

Install

Remote server: your requests and data go to domaincanary.com. Claude Code: claude mcp add --transport http domaincanary https://domaincanary.com/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • 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
  • 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 recor
  • 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
  • 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 .z

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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