I’m using keycloak v15.0.2.
The problem is that, in the registration form, keycloak considers valid the mail inserted in the image belove
How can I avoid this behaviour?
Technically this is a valid emailadress, assuming a local domain, although discouraged (Email address - Wikipedia).
You might be able to add an additional pattern/regex validator, which has a more strict validation.
Yes, you’re right, but for my business model it’s not.
Do you know how to add pattern/regex validator from admin console?
Or Have I to change the template?
With such an ancient version of keycloak, you’ll have to write a custom registration validator.
With the declarative-user-profile, which became standard in v24, you can just configure it from the admin console.
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