Domain Mail Check
app.openkrill/mailcheck
Check how a domain is set up for email and who it is registered with, from public DNS data.
Description as published in the official MCP registry.
Answers the MCP handshake and lists its tools. Checked 2026-10-04.
What we measured
| Endpoint | https://mailcheck.openkrill.app/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (534 ms) | our check, 2026-10-04 |
| Protocol version | 2025-06-18 | our check, 2026-10-04 |
| Tools (6) | check_email_auth, check_dns_records, lookup_domain_registration, submit_feedback, get_feedback_reply, index_tools | tools/list, 2026-10-04 |
| Registry version | 1.0.0 · active · updated 2026-10-03 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.
Connect
claude mcp add --transport http mailcheck https://mailcheck.openkrill.app/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name app.openkrill/mailcheck.