[keycloak-user] Welcome Email after Verification Success

Hi! I use Keycloak for User-Registration and would like to send a realm-customized "Welcome"-Email after the user verified his email-account. The doc at https://www.keycloak.org/docs/3.2/server_admin/topics/events/login.html mentions 4 different type of email events, but none of these events fit my use-case. Is there any other way I can (easily) implement such a functionality ? Thanks, Rajib