> ## Documentation Index
> Fetch the complete documentation index at: https://docs-staging-quickstart-revamp.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> Describes how to configure Mandrill as an external SMTP email provider.

# Configure Mandrill as External SMTP Email Provider

Auth0 allows you to configure your own SMTP email provider so you can more completely manage, monitor, and troubleshoot your email communications. Auth0's built-in email infrastructure should be used for testing emails only.

## Prerequisites

* To ensure that emails can be sent from Auth0 to your SMTP, open ports and allow inbound connections from specific IP addresses. To update the list of IPs, navigate to [Dashboard > Branding](https://manage.auth0.com/#/branding/email_provider) [>](https://manage.auth0.com/#/branding/email_provider) [Emails Provider](https://manage.auth0.com/#/branding/email_provider). See [Add IP Addresses to AllowList](/docs/secure/security-guidance/data-security/allowlist) for details.
* You must have a [Mandrill](https://www.mandrill.com/signup/) account.

## Configure Mandrill

1. Log in to [Mandrill](https://www.mandrill.com/signup/).
2. Navigate to Mandrill [Settings](https://mandrillapp.com/settings), and click **Add API key**. Copy this key value.
3. Navigate to Auth0 [Dashboard > Branding > Email Provider](https://manage.auth0.com/#/branding/email_provider).
4. Activate the **Use my own email provider** toggle.
5. Click the **Mandrill** logo.
6. Provide a **From** email address, enter the Mandrill **API Key** you previously copied.
7. Click **Save**.

## Test email

You can now send a test email using the **Send Test Email** button. If you have configured everything correctly, you will receive a confirmation email. If you do not receive an email after a few minutes, please check your [Auth0 logs](https://manage.auth0.com/#/logs) for any failures.

The Mandrill [Outbound Activity](https://mandrillapp.com/activity) page will now display delivery insights for all emails that have been sent to your users.