# Inbox Check

> Use this tool when you need to test email deliverability and validate configurations to ensure successful campaign sending. It runs automated tests against major email providers, checking SPF, DKIM, and DMARC setups, and reports inbox placement results to identify potential issues. Ideal for use before launching email campaigns to prevent deliverability problems.

Canonical page: https://skillsregistry.net/skills/inbox-check  
JSON: https://api.skillsregistry.net/v1/skills/inbox-check

## Description

Runs programmatic email deliverability tests against major providers including Gmail, Outlook, Yahoo, Mail.ru, and Yandex. Validates SPF, DKIM, and DMARC configurations and reports inbox placement results to identify deliverability issues before sending campaigns.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-04-25

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/inbox-check)
- **Repository:** <https://github.com/live-direct-marketing/ldm-inbox-check-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "inbox-check"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/inbox-check` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/inbox-check/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt