# Message

***

<mark style="color:green;">`POST`</mark> `/api/v0/messages`

Submission of email through API.

***

<table data-full-width="true"><thead><tr><th>Name</th><th>Description</th><th>Condition</th></tr></thead><tbody><tr><td><code>from</code></td><td>Email address for <code>From</code> header. If not present, default will be used.</td><td>Optional</td></tr><tr><td><code>to</code></td><td>Recipient email address. Use commas to separate multiple recipients.</td><td><mark style="color:red;">Required</mark></td></tr><tr><td><code>reply_to</code></td><td>Email address for recipient reply. Also used for return path for bounced email. </td><td>Optional</td></tr><tr><td><code>unsubscribe_link</code></td><td>Unsubscribe link is a link within your email campaign, often placed in the footer.</td><td>Optional (Recommended)</td></tr><tr><td><code>subject</code></td><td>Email subject.</td><td><mark style="color:red;">Required</mark></td></tr><tr><td><code>as_html</code></td><td>By default we use plain text as email content. However you may set <code>as_html=1</code> for sending HTML content.</td><td><mark style="color:red;">Required</mark></td></tr><tr><td><code>content</code></td><td>Plain text or HTML content.</td><td><mark style="color:red;">Required</mark></td></tr><tr><td><code>headers</code></td><td>Additional mail header.</td><td>Optional</td></tr></tbody></table>

***

Example of JSON body to be prepared during email submission via API.

```json
{
    "from": "Demo <demo@webimpian.com>",
    
    // Use comma for multiple recipient, limit up to 1,000 in single request
    "to": [
        "Name 1 <demo@purpose-1.io>",
        "Name 2 <demo@purpose-2.io>"
    ], 
    "reply_to": "support@customer.dot",
    "unsubscribe_link": "https://newsletter.mailniaga.com/unsubscribe/UClRDVU763NX75ohJhys7PIg",
    "subject": "Your Campaign Subject",
    "as_html": 1,
    "content": "<p>This is demo HTML.</p>"
}
```

Sending via command line using cURL.

```markup
curl -X POST https://api.mailniaga.mx/api/v0/messages \
  --header "Content-Type: application/json" \
  --header "X-API-Key: <API_Key>" \
  --data-raw '{
        "from": "Demo <demo@webimpian.com>",
        
        // Use comma for multiple recipient, limit up to 1,000 in single request
        "to": [
            "Name 1 <demo@purpose-1.io>",
            "Name 2 <demo@purpose-2.io>"
        ], 
        "reply_to": "support@customer.dot",
        "unsubscribe_link": "https://newsletter.mailniaga.com/unsubscribe/UClRDVU763NX75ohJhys7PIg",
        "subject": "Your Campaign Subject",
        "as_html": 1,
        "content": "<p>This is demo HTML.</p>"
    }'
```

JSON structured response.

```json
{
    "error": false, 
    "status_code": 200,
    "message": "OK",
    "data":{
        "total_recipient": 2
    }
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://api.webimpian.support/mailniaga/v0/message.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.