Bulk Sender Lint

Runs dated email-sender compliance checks over SPF, DKIM, DMARC, one-click unsubscribe and TLS from an assistant.

What you can do

Bulk Sender Lint is a local MCP server that performs 21 dated checks covering SPF, DKIM, DMARC, RFC 8058 one-click unsubscribe and TLS. It is described as usable in VS Code and in the assistant. The manifest lists no tools, so the exact tool names and inputs are not documented in the supplied material.

When to use it

Worth adding when you need to audit a sending domain's email authentication and unsubscribe setup before a bulk or marketing send, and want the results surfaced inside an assistant or VS Code session.

Requirements

Runs as a local process over stdio, installed from the npm package @readystack/bulk-sender-lint and started with npx, so Node.js and network access to the checked domains are needed. Desktop only; no web executable. No authentication, environment variables or headers are declared.