> ## Documentation Index
> Fetch the complete documentation index at: https://auth0-actions-triggers-prototype.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Customize Emails

> Manage and customize emails sent by Auth0, including account verification, welcome messages, and breached password detection.

Auth0 offers several email-based workflows, like [user account verification](/docs/manage-users/user-accounts/verify-emails) and [breached password detection](/docs/secure/attack-protection/breached-password-detection).

To use these workflows, start by configuring an [external SMTP email provider](/docs/customize/email/smtp-email-providers) using credentials from a supported provider (like your Mandrill API key or Amazon SES access keys) or SMTP server details.

To manage and customize emails further, you can:

* **Modify the appearance and content** of emails using [email templates](/docs/customize/email/email-templates) and Liquid, an open-source template language.

* **Fully control the email delivery process** by writing an <Tooltip tip="Action: A Node.js function that executes at defined points during the Auth0 runtime." cta="View Glossary" href="/docs/glossary?term=Actions">Action</Tooltip> that sends requests to your email provider's API and implements custom logic for your use case.

* **Trigger emails or create tickets outside the default workflows** using the Management API.

During development, you can use our [built-in email provider](/docs/customize/email/smtp-email-providers#use-the-built-in-smtp-email-provider-for-development) to check email delivery and preview how emails appear during testing.

## Overview

| Read...                                                                                                                       | To learn...                                                                                                                                                                                                                                                      |
| ----------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [SMTP Email Providers](/docs/customize/email/smtp-email-providers)                                                            | <ul><li>How to configure an email provider with a supported integration or SMTP server details</li><li>How to write a custom email provider Action</li><li>The limits of the built-in email provider</li><li>How to troubleshoot email delivery issues</li></ul> |
| [Email Templates](/docs/customize/email/email-templates)                                                                      | <ul><li>How to customize emails sent as part of Auth0 workflows</li> <li>About the Liquid syntax and template-specific variables supported in email templates</li></ul>                                                                                          |
| [Customize Email and Ticket Handling with the Management API](/docs/customize/email/manage-email-flow)                        | <ul><li>How to send workflow-based emails on demand</li><li>How to generate URLs used in email workflows on demand</li></ul>                                                                                                                                     |
| [Implement User Invitations using Password Reset Emails](/docs/customize/email/send-email-invitations-for-application-signup) | <ul><li>How to implement invitations for new user accounts on your Auth0 application using Auth0's password reset workflow</li></ul>                                                                                                                             |