# Sinch Email Mailgun Optimize

> Check email deliverability and domain health via Mailgun Optimize (InboxReady)

- Skill: `sinch/sinch-email-mailgun-optimize` (Agent Skill)
- Install (CLI): `npx skillmds@latest add sinch/sinch-email-mailgun-optimize`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sinch/sinch-email-mailgun-optimize/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: sinch (https://skillmd.com/u/sinch)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/sinch/sinch-email-mailgun-optimize

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# Mailgun Optimize (InboxReady)

Check email deliverability, blocklist status, and domain health using Mailgun Optimize (InboxReady). List monitored domains, check reputation, test inbox placement. Uses Basic Auth (api:API_KEY).

**IMPORTANT: Execute this command directly. Do NOT generate script files. Perform the API call immediately.**

## Input

- `--action` / `-a`: Action: list-domains, check-blocklist, health - optional, default list-domains
- `--domain` / `-d`: Domain to check (for blocklist/health) - optional
- `--format` / `-f`: Output format (table or json) - optional

Arguments: $ARGUMENTS

## Instructions

**Execute these steps directly - do not write code or scripts:**

0. If $ARGUMENTS empty: ask what to do (list monitored domains, check blocklist, check domain health). Otherwise parse.

1. Validate: --action, optional --domain. Get MAILGUN_API_KEY. Base: api.mailgun.net. If missing, report "Mailgun is not configured."

2. GET https://api.mailgun.net/v1/inboxready/domains (or relevant Optimize endpoint per action) with Basic Auth (api:API_KEY). For domain-specific checks use appropriate endpoint and --domain.

3. Display: list of domains, blocklist status, or health summary. "✅ Optimize results". Handle 401, 404.

4. Handle all errors gracefully.

## Examples

```
/sinch-email-mailgun-optimize
/sinch-email-mailgun-optimize --action=list-domains
/sinch-email-mailgun-optimize --action=check-blocklist --domain=mydomain.com
```

## API Reference

- **Endpoint**: GET /v1/inboxready/domains and other InboxReady endpoints
- **Auth**: Basic api:API_KEY