---
title: Email Attachments
description: Send files with emails
icon: Paperclip
---

## Limits

- Max 10 attachments per email
- Max 10MB total size
- Any file type supported

## API usage

```json
{
  "to": "user@example.com",
  "subject": "Your Invoice",
  "body": "<p>Invoice attached.</p>",
  "attachments": [
    {
      "filename": "invoice.pdf",
      "content": "JVBERi0xLjQK...",
      "contentType": "application/pdf"
    }
  ]
}
```

## Attachment fields

| Field | Description |
|-------|-------------|
| `filename` | Display name (max 255 chars) |
| `content` | Base64-encoded file content |
| `contentType` | MIME type (e.g., `application/pdf`) |

## Base64 encoding

```javascript
import fs from 'fs';

const fileBuffer = fs.readFileSync('invoice.pdf');
const base64Content = fileBuffer.toString('base64');
```