Tasklist verify Keycloak username for Candidate users

Camunda checks the username of the candidate users in the keycloak
Is it possible to change this check that camunda performs on the username keycloak for the email?
In other words, check whether the emails placed in the candidate users of the task correspond to any email from a user in the keycloak
I hope you were able to write properly and that you understand the issue,
Thanks in advance.