MCP serverOfficial registry
Postbox Tools
Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
Power your agent
Add this server
The publisher's own URL. Not a PlugMCP endpoint.
Server URL
https://mcp.postboxservices.com/mcp
Provider
Claude Code
claude mcp add --transport http com.postboxservices-postbox-tools https://mcp.postboxservices.com/mcp
Run in a terminal.
Claude Desktop
{
"mcpServers": {
"com.postboxservices-postbox-tools": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.postboxservices.com/mcp"
]
}
}
}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
Host a copy with our keys and logs.
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
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