# POST /email-campaigns/:campaign_id/send-test

**Resource:** [Email Campaigns](./email-campaigns.md)  
**MCP tool:** `send_email_blast_test`  
**Scopes:** `email-blasts:write`  
**Write operation:** yes

Send a test copy of a blast to up to 5 specific email addresses. Renders exactly like a real send but resolves no audience, creates no contacts, and does not affect stats. Pass send_id to test one specific RUN's copy instead of the blast's current copy, which is what you want before arming a run in a series, since each run carries its own subject, body, attachments and sender.

## Parameters

| Name | In | Type | Required | Description |
|------|----|------|----------|-------------|
| `campaign_id` | path | string | yes |  |
| `recipients` | body | array | yes | Up to 5 email addresses to receive the test. |
| `send_id` | body | string | no | Optional. Test this run's exact content rather than the blast's current content. |
| `require_approval` | body | boolean | no | Optional. Set true to route this write into the approval queue for human review instead of executing it immediately (returns 202 + an approval_id). Works even when your key/token has permission to execute directly. |

## Request example

```bash
curl -X POST   "https://api.trustpager.com/functions/v1/api/v1/email-campaigns/:campaign_id/send-test"   -H "Authorization: Bearer YOUR_API_KEY"   -H "Content-Type: application/json"   -d '{"recipients":"..."}'
```

---
Base URL: `https://api.trustpager.com/functions/v1/api/v1` — Auth: `Authorization: Bearer YOUR_API_KEY`