Action Scripts - Get all Validated User Emails that are marked Visible

I am trying to get all Validated User Emails to identify if a user belongs to a trusted partner when running a Github action. I tried the API -

curl -H "Authorization: token $GH_TOKEN" "https://api.github.com/users/$USER"

It gives me the email that’s visible in the Main Profile (home page), but not the full list of Validated emails that the User has specified as “visible” in the profiles.

I don’t want to trust the email in commits since that can be locally modified. Is there a way to get the list of all emails associated with an account? I am primarily only interested in the part that comes after @domain.com, not the full email.