How to restrict registration to specific email domains?

[nosan]

Related topic, may help some:

User Registration Email Domain Whitelist

Hi! A similar question was asked in a thread from December 2019, but I’d like to know if anything has changed in Keycloak since then. I would like to restrict new user registrations so that only specific email domains will be able to create new accounts. In other words, only accept registration from *@example.com or *@domain.corp and reject all other registrations. Is there a built-in way to do this? Thank you.