MCP server for email deliverability testing across 9 providers. Test inbox placement (Inbox vs Spam vs Promotions) with SPF/DKIM/DMARC verification. Works with Claude Desktop, Cursor, Windsurf.
ldm-inbox-check-mcp
以下摘录自该仓库的 README(片段) · 在 GitHub 读完整 README →
> **MCP server for Inbox Check** —
> programmatic email deliverability testing across **9 providers** (Gmail,
> Outlook, Yahoo, iCloud, AOL, GMX, T-Online, Mail.ru, Yandex) for AI agents.
📦 npm ·
🌐 check.live-direct-marketing.online ·
✨ awesome-mcp-servers ·
🔍 Glama
Plug real inbox-placement testing into Claude Desktop, Cursor, Windsurf, Cline,
or any other MCP-compatible AI client. The server wraps the Inbox Check REST
API and exposes 5 tools your agent can call directly — create a test, send
your email to the returned seed addresses, and read back per-provider
placement (Inbox / Spam / Promotions / Updates), authentication results
(SPF, DKIM, DMARC), headers, and screenshots.
Why use this?
- **9 real provider mailboxes** — Gmail, Outlook, Yahoo, iCloud, AOL, GMX,
T-Online, Mail.ru, Yandex. Not simulations: actual IMAP-backed seed
accounts, actual filter verdicts.
- **Authentication verification** — SPF, DKIM, DMARC alignment reported
per delivery, parsed from Authentication-Results headers.
- **Folder detection** — Inbox, Spam, Promotions, Updates, Social,
Forums, Category-specific tabs where providers expose them.
- **Screenshots** — rendered inbox/spam list view for Gmail, Outlook
and others, so the agent can show the user what the recipient sees.
- **No flaky scraping** — the service runs its own seed mailboxes; your
agent only talks to a stable REST API.
- **Built for AI agents** — strict JSON schema via Zod, deterministic
tool names, cursor pagination, idempotent keys.
What it does
Exposes 5 tools that wrap the Inbox Check REST API:
| Tool | Description |
| --- | --- |
| inbox_check_create | Create a placement test; returns seed addresses to send your email to. |
| inbox_check_status | Get per-provider placement, SPF/DKIM/DMARC, screenshots. |
| inbox_check_list | List recent tests with cursor pagination. |
| inbox_check_delete | Delete a test and its screenshots. |
| inbox_check_me | Inspect API key metadata, features, quota usage. |
Install
No global install needed — Claude Desktop / Cursor / Windsurf / Cline will
npx-run it on demand.
Get an API key
1. Go to .
2. Contact the operator for a key (self-service issuance coming later).
3. Copy the icp_live_... string — it's shown exactly once.
Configure your MCP client
Claude Desktop
Edit ~/Library/Application Support/Claude/claude_desktop_config.json
(macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
Cursor
~/.cursor/mcp.json:
Windsurf
~/.codeium/windsurf/mcp_config.json:
Cline (VS Code)
~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
(macOS) or the equivalent on your platform:
Environment variables
| Variable | Required | Default |
| --- | --- | --- |
| INBOX_CHECK_API_KEY | yes | — |
| INBOX_CHECK_BASE_URL | no | https://check.live-direct-marketing.online |
Override the base URL only for self-hosted deployments or testing.
Example prompts
> "Use inbox-check to create a test against Gmail, Outlook and Yahoo, then