Keycloak relies on email functionality for tasks like password resets, user verifications, and notifications. A common setup is for Keycloak to authenticate to the SMTP server with a username and password. With issue #17432, the Keycloak community raised the need for token-based authentication with XOAUTH2, as some providers deprecated the authentication for SMTP with passwords. With Keycloak 26.2, the SMTP AUTH configuration now supports XOAUTH2. As Keycloak’s role is that of an applicatio...
