I am evaluating Keycloak and ADFS 3.0 and I have created an SAML Identity Provider to allow users to be authenticated against ADFS. Users are created in Keycloak with emails as usernames. The emails are stored in lower cases format in keycloak db. But ADFS sends emails (NameID) with upper and lower characters and Keycloak is not able to match users.
How can I configure Keycloak to be case insentive for SAML Response ?