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.
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 > Emails Provider. See Add IP Addresses to AllowList for details.
You must have a Mandrill account.
Log in to Mandrill.
Navigate to Mandrill Settings, and click Add API key. Copy this key value.
Navigate to Auth0 Dashboard > Branding > Email Provider.
Activate the Use my own email provider toggle.
Click the Mandrill logo.
Provide a From email address, enter the Mandrill API Key you previously copied.
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 for any failures.
The Mandrill Outbound Activity page will now display delivery insights for all emails that have been sent to your users.