# [...] # Clientes locais ou autenticados podem enviar emails para qualquer endereco # Rejeitar clientes listados nas listas negras de spam smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, reject_rhsbl_sender dbl.spamhaus.org # [...]