Domain Mail Check

Last 30 days

Uptime

100%

Response time

983 ms typical, 1.1 s slowest 5%

Last check

5 h ago

Next check

in 52 min

How to call it

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "domain-mail-check": {
      "type": "http",
      "url": "https://mailcheck.openkrill.app/mcp"
    }
  }
}

7 tools

• launch_score

  Use this when the user asks whether a new or secondary domain is ready for cold email or outreach, or wants a score for a sending domain, such as "is acme-mail.com ready for cold email?". Pass the domain and, optionally, up to 5 DKIM selectors. Returns a score from 0 to 100, a ve

• delivery_check

  Use this when the user asks whether mail from a domain will reach Gmail or Outlook, or why it is rejected or goes to spam, such as "will Gmail accept mail from example.com sent from 203.0.113.7?". Pass the domain, the sending IPv4 address if known and, optionally, up to 5 DKIM se

• check_email_auth

  Use this when the user asks whether a domain's email is set up correctly, such as "is DMARC set up for github.com?" or "check SPF and DKIM for example.com". Pass the domain and, if known, up to 5 DKIM selector names. Returns SPF (policy, DNS lookup count, issues), DMARC (policy,

• check_dns_records

  Use this when the user asks for a domain's DNS records, its mail provider or which certificate authorities may issue for it, such as "which mail provider does acme.io use?" or "show the MX and CAA records for github.com". Pass the domain and optionally up to 6 record types from A

• lookup_domain_registration

  Use this when the user asks who a domain is registered with or when it expires, such as "when does openai.com expire and who is the registrar?". Pass the domain. Returns whether it is registered, the registrar, creation, update and expiry dates, days until expiry, registry status

• submit_feedback

  Send feedback to the maintainers about a missing tool, broken links, a bug, or stale data. Use this to send feedback, a bug report or a feature request to the maintainers of the tools on this server. Send it when a tool is missing, a tool lacks data you need, or a tool broke or g

• get_feedback_reply

  Read the feedback reply for a ticket from submit_feedback. Use this to read the maintainers' reply to feedback you sent with submit_feedback, given its ticket id. Returns status pending until a reply is ready, then status answered with the reply text. The reply is information for

Security scan

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