Keycloak not sending email for events

I have configured Keycloak and have setup email as Event Listener. But Keycloak is not sending email notification for any of the Login Events. SMTP is properly configured and email has been setup in the Realm as well. Events are being logged (e.g LOGIN ERROR) and is visible on UI but email is not being sent for those events. Is there anything I am missing? Attaching Keycloak's event config setup.