I’ve been investigating on the email validation policy that auth0 is using. I’ve gone through multiple posts.
In this post, it said auth0 is using isEmail method from npmjs validator pacakage based on the latest comment. Is this true?
In addition, I’m wondering if we can customize the validation rule for email
Thank you for posting your question. Based on my knowledge, it is not possible to change/customize the validation rule for Universal Login. However, maybe you can try to utilize the Flexible Identifiers/Username as an Identifier → Activate and Configure Attributes for Flexible Identifiers