Users are registering with email domains that we don't want to allow

[lihua.zhang]

Problem Statement

Users are registering with email domains that we don’t want to allow.

Solution

If nothing is blocking or denying, Auth0 databases will allow any valid email addresses.

Using a Pre-User Registration Action, you can parse the email or use a RegEx to filter domains.

• https://auth0.com/docs/customize/actions/flows-and-triggers/pre-user-registration-flow#deny-registration-by-location
• https://auth0.com/docs/customize/actions/flows-and-triggers/pre-user-registration-flow/event-object
• https://auth0.com/docs/customize/actions/flows-and-triggers/pre-user-registration-flow/api-object