> For the complete documentation index, see [llms.txt](https://docs.uibakery.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uibakery.io/reference/working-with-actions/smtp-request.md).
# SMTP Request
UI Bakery allows sending emails using an external email server by connecting to it via the SMTP protocol. The SMTP Request action step configuration works just like in an ordinary email client. However, it has its own specific characteristics as well.
To start sending SMTP Requests, you need to select your SMTP data source and proceed to configuring the action's settings.
Below is a list of SMTP settings you can configure:
* **From**
* **Reply-To**\
You can use this field if you want your recipients to reply to a different email address than the one you send your emails from. In other cases, you should leave this field blank.
* **To/CC/BCC**\
These fields accept a single email or a comma-separated list of emails. For example, both of the options below are valid to define the recipients:
```javascript
{{ui.input.value}}
```
```js
email1@email.com,{{ui.input.value}}
```
* **Subject**
* **Text part & HTML part**\
You can define one of them or both to support plain text clients and HTML ones at the same time.
* **Attachments**\
This field accepts a File object/a list of File objects that are retrieved from the File picker component, for example:
```js
{{ui.filepicker.value}}
```
The *Attachments* field can also accept a JavaScript object (or a list of such objects) that contains information about the file, for example:
```js
{ // define custom content type for the attachment
filename: 'text.bin',
content: 'hello world!',
contentType: 'text/plain'
}
```
or
```js
{ // encoded string as an attachment
filename: 'text1.txt',
content: 'aGVsbG8gd29ybGQh',
encoding: 'base64'
}
```
---
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