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Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
com.postboxservices/postbox-tools is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 93/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding com.postboxservices/postbox-tools to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add com.postboxservices/postbox-tools https://mcp.postboxservices.com/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-09-26T19:11:55.243282Z",
"publishedAt": "2026-09-26T19:11:55.243282Z",
"statusChangedAt": "2026-09-26T19:11:55.243282Z"
}
},
"server": {
"name": "com.postboxservices/postbox-tools",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json",
"remotes": [
{
"url": "https://mcp.postboxservices.com/mcp",
"type": "streamable-http"
}
],
"version": "0.1.1",
"websiteUrl": "https://postboxservices.com/mcp/",
"description": "Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS."
}
}