    servers/
        communication/
        postbox-tools
  

PT

Postbox Tools

Unverified Claim & verify → Communication

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

Visit website ↗ Try Remote Server

Overview Installation

Overview

Postbox Tools is an MCP server that provides free email verification and security checks directly to AI assistants. It offers access to 24 blacklist checks, spoofing and BEC grading, redirect tracing, email spam testing, and WHOIS lookups—all without requiring installation or local setup.

The server runs as a remote endpoint at https://mcp.postboxservices.com/mcp with no authentication required. Current release is v0.1.1. Simply point your MCP client to the endpoint and you're ready to use the tools.

Postbox Tools is listed in the Communication category on mcp.site and works with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server for postboxservices.com, you can claim this listing to verify ownership and keep information up to date.

▸Hosted endpoint — Streamable HTTP · https://mcp.postboxservices.com/mcp

Installation

Settings → Connectors → Add custom connector
Name: Postbox Tools
URL:  https://mcp.postboxservices.com/mcp

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