> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ownid.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Send user email messages through your server and configure email templates.

OwnID sends an <Tooltip tip="one-time passcode">OTP</Tooltip> to users during first time enrollment of a device, or when biometric verification is not available.

OwnID built-in email provider is not supported for use in a production environment, should only be used for testing.
In preparation for go-live, you must set up your own email provider.

## Select your email configuration

Select *Configure my SMTP Email Provider*, or if you prefer to utilize a different email provider, select *Configure A Custom Email Provider*.

<CardGroup>
  <Card title="Configure my SMTP Email Provider" icon="gear" href="/explore/customize-emails/smtp-setup">
    Enter your SMTP server credentials in the OwnID console.
  </Card>

  <Card title="Configure a Custom Email Provider" icon="webhook" href="/explore/customize-emails/custom-provider">
    Build an endpoint to integrate with your custom email provider.
  </Card>
</CardGroup>