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---
name: sinch-email-mailgun-send
description: Send an email via Mailgun (Sinch) API
---
# Send Email via Mailgun
Send a transactional email using the Mailgun Email API. Uses HTTP Basic Auth (api:API_KEY). Region: US (api.mailgun.net) or EU (api.eu.mailgun.net).
**IMPORTANT: Execute this command directly. Do NOT generate script files. Perform the API call immediately.**
## Input
- `--from` / `-f`: Sender (e.g. "Sender <sender@yourdomain.com>") - required
- `--to` / `-t`: Recipient email address - required
- `--subject` / `-s`: Email subject - required
- `--text` / `-T`: Plain text body - optional (use with or without --html)
- `--html` / `-H`: HTML body - optional
- `--domain` / `-d`: Sending domain (must be verified in Mailgun) - required, or use MAILGUN_DOMAIN env
Arguments: $ARGUMENTS
## Instructions
**Execute these steps directly - do not write code or scripts:**
0. If $ARGUMENTS empty: ask for from, to, subject, and text or html body. Otherwise parse.
1. Validate: --from, --to, --subject; at least one of --text or --html. --domain or MAILGUN_DOMAIN. Get MAILGUN_API_KEY and MAILGUN_DOMAIN from env. Use MAILGUN_REGION (us or eu) for base URL: api.mailgun.net (US) or api.eu.mailgun.net (EU). If missing, report "Mailgun is not configured. Set MAILGUN_API_KEY, MAILGUN_DOMAIN, and optionally MAILGUN_REGION."
2. POST https://{api_host}/v3/{domain}/messages with Basic Auth (username "api", password API_KEY). Form or JSON: from, to, subject, text, html.
3. On success: "✅ Email sent" with message ID. Handle 401, 400, 404 with clear messages.
4. Handle all errors gracefully.
## Examples
```
/sinch-email-mailgun-send --from="Sender <sender@mydomain.com>" --to=recipient@example.com --subject="Hello" --text="Hello from Mailgun"
/sinch-email-mailgun-send -f "Me <me@mydomain.com>" -t user@example.com -s "Test" --html="<p>Hi</p>"
```
## API Reference
- **US**: https://api.mailgun.net/v3/{domain}/messages
- **EU**: https://api.eu.mailgun.net/v3/{domain}/messages
- **Auth**: Basic api:API_KEY
