cname_lookup — MailX Email Deliverability MCP Tool
cname_lookup
(cname lookup) is one of 16 tools on the
MailX Email Deliverability
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call cname_lookup from your client
- Claude Code MailX Email Deliverability cname_lookup run in your project directory
- Claude Desktop MailX Email Deliverability cname_lookup ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor MailX Email Deliverability cname_lookup ~/.cursor/mcp.json
- VS Code MailX Email Deliverability cname_lookup .vscode/mcp.json
- Zed MailX Email Deliverability cname_lookup ~/.config/zed/settings.json
- Windsurf MailX Email Deliverability cname_lookup ~/.codeium/windsurf/mcp_config.json
- Cline MailX Email Deliverability cname_lookup ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI MailX Email Deliverability cname_lookup ~/.gemini/settings.json
- Grok MailX Email Deliverability cname_lookup .mcp.json (in your project root)
- ChatGPT MailX Email Deliverability cname_lookup Settings → Connectors → Advanced → Developer mode
- Claude.ai MailX Email Deliverability cname_lookup Settings → Connectors → Add custom connector
- LangChain MailX Email Deliverability cname_lookup pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http email-deliverability https://themailx.com/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.