DiscourseConnect / SSO: 상위 사이트에서 리다이렉트된 후 사용자가 이메일을 입력하도록 강제

Hi.
We authenticate our users via our website, but we don’t have emails on our side, so we pass a fake email field in sso payload (${userId}@no-email.invalid).

Is it possible to force new users to specify their email addresses and validate it via Discourse?