# Send custom HTML email

If you'd like to set your own HTML for an email, use the `html` parameter. 

{% hint style="warning" %}
Sending HTML over email is a mess. Knowing what email clients support what HTML features can be a full-time job. 

We recommend using our Visual Drag-and-Drop editor to create a standard-compliant email that will look properly in all email clients. [Learn more](https://docs.encharge.io/transactional-email-api/send-an-email-from-template)
{% endhint %}

To send a custom HTML email, send a request to the API as follows:

```javascript
const axios = require('axios');

// Send a POST request
axios({
  method: 'post',
  url: 'https://api.encharge.io/v1/emails/send?token=yourAPIKey',
  data: {
    "to": "recipient@example.com",
    "from": "sender@acme.org",
    "subject": "Welcome",
    "html": "<div>Hello and welcome, <b>{{ person.firstName }}</b>!</div>",
    /**
   * Optionally, you can include a dictionary of fields to be replaced.
   * For example, passing
   * `{ "loginURL": "https://app.encharge.io/login/3n2l3ad99"}`
   * will replace
   * `{{ loginURL }}` in the email html or subject.
   */
    "templateProperties": {
      "loginURL": "https://app.encharge.io/login/3n2l3ad99"
    }
  }
});
```

{% hint style="success" %}
If you have previously created the recipient  in Encharge, you can use personalization tags, for example `{{ person.firstName }}` in your email's text. See what fields you can use in [Person Fields](https://app.encharge.io/settings/person-fields).
{% endhint %}


---

# 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://docs.encharge.io/transactional-email-api/send-custom-html-email.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.