com.postboxservices/postbox-tools
Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http postbox-tools 'https://mcp.postboxservices.com/mcp'
{
"mcpServers": {
"postbox-tools": {
"type": "http",
"url": "https://mcp.postboxservices.com/mcp"
}
}
}
Frequently asked questions
What is com.postboxservices/postbox-tools?
Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
How do I install com.postboxservices/postbox-tools?
It runs as a remote server. In Claude Code: claude mcp add --transport http postbox-tools 'https://mcp.postboxservices.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does com.postboxservices/postbox-tools need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Who maintains com.postboxservices/postbox-tools?
It is published by com.postboxservices. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.