postbox-tools

com.postboxservices/postbox-tools

Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.

Description as published in the official MCP registry.

Answers the MCP handshake and lists its tools. Checked 2026-10-04.

What we measured

Endpointhttps://mcp.postboxservices.com/mcpregistry
HandshakeAnswers the MCP handshake and lists its tools (1,933 ms)our check, 2026-10-04
Protocol version2025-11-25our check, 2026-10-04
Tools (8)check_blacklist, check_spoofability, trace_redirect, create_mailtest, get_mailtest_result, analyze_eml, get_domain_age, whois_lookuptools/list, 2026-10-04
Registry version0.1.1 · active · updated 2026-09-26registry

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 postbox-tools https://mcp.postboxservices.com/mcp

Commands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.

Related servers

Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name com.postboxservices/postbox-tools.