reactornet:/etc/exim4/conf.d# grep -r MAIN_TLS_ADVERTISE_HOSTS /etc/exim4/conf.d
/etc/exim4/conf.d/main/03_exim4-config_tlsoptions:.ifndef MAIN_TLS_ADVERTISE_HOSTS
/etc/exim4/conf.d/main/03_exim4-config_tlsoptions:MAIN_TLS_ADVERTISE_HOSTS = *
/etc/exim4/conf.d/main/03_exim4-config_tlsoptions:tls_advertise_hosts = MAIN_TLS_ADVERTISE_HOSTS