Configure Test SMTP Email Server

Describes how to set up a test SMTP server while in development or testing stages.

While working in your development or testing environment, we recommend that you use a test SMTP server so that you can:

• Check for successful email deliveries.
• View how emails you sent appear to recipients prior to go live.

You can either set up your own SMTP server or use a third-party service. Once you have either your own SMTP server set up or a test service available, you provide its credentials the way you typically would for a third-party email provider.

Auth0 does not allow certain “false” domains commonly used during testing. Use real email addresses to avoid disruption or errors.

Here are some third-party email testing services you can use:

• Debug Mail
• FakeSMTP
• Haraka
• MailTrap
• smtp4dev

Learn more

• Configure External SMTP Email Providers
• Configure Custom External SMTP Email Provider