# Email DNS Preflight x402 [Health: Active]

**Category:** 💬 Communication  
**Repository:** https://email-dns-preflight-x402.copper-crate.workers.dev/docs  
**Views:** 0  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/email-dns-preflight-x402

## Description
Paid email, DNS, mail-security and RDAP intelligence for agents over x402.

## Claude Desktop Quick Installation
No confirmed install details yet, so no config is published. Follow the setup steps in the repository above.

## Documentation

## What Email DNS Preflight x402 does

The Email DNS Preflight x402 MCP server gives agents access to intelligence across four related areas: email, DNS, mail security, and RDAP. It is intended for preflight-style checks around email infrastructure, domain records, mail-security information, and registration data. The service is presented as a paid MCP endpoint, with x402 used to handle access to the available intelligence.

This fits the 🔒 Security category because its stated scope centers on email and mail-security checks, along with DNS and RDAP data that can support infrastructure review. Developers can consider it when an agent needs to gather these signals through an MCP-compatible interface rather than through a separately implemented service connection.

## How it works

The Email DNS Preflight x402 MCP server is available through a hosted documentation endpoint at `https://email-dns-preflight-x402.copper-crate.workers.dev/docs`. Its interface is exposed to agents over MCP, while x402 provides the payment mechanism for requests. The available description identifies the service as paid, but does not specify pricing, payment assets, authentication details, transport settings, or request examples.

The service is therefore best understood as an agent-facing access layer for email, DNS, mail-security, and RDAP intelligence. An MCP client can use the server’s documented interface to request the supported information, subject to the x402 payment flow. Exact tool names, parameters, return formats, and error behavior should be confirmed in the linked documentation before implementation.

## Tools and capabilities

The stated capability areas are:

- Email intelligence
- DNS intelligence
- Mail-security intelligence
- RDAP intelligence

The Email DNS Preflight x402 MCP server may be relevant to workflows that review a domain’s email setup, inspect DNS information, examine mail-security signals, or retrieve RDAP-related intelligence. These are capability areas rather than a confirmed list of individual MCP tool names. The provided material does not identify particular record types, security standards, registries, domains, or output schemas.

## Limitations and notes

The Email DNS Preflight x402 MCP server has no README or tool specification available in the supplied material. As a result, installation steps, required environment variables, supported MCP transports, payment configuration, rate limits, pricing, data freshness, and operational guarantees cannot be confirmed here.

The description also does not name supported MCP clients or provide client-specific setup instructions. Developers should consult the hosted documentation before selecting the server for production use, especially where payment handling, response structure, or coverage of email, DNS, mail-security, and RDAP intelligence is important.

_Full upstream README: https://allmcps.com/mcp/email-dns-preflight-x402/readme_