Someone

smtpd_recipient_restrictions = permit_sasl_authenticated,
                             permit_mynetworks,
                             hash:/etc/postfix/access,
                             reject_non_fqdn_recipient,
                             reject_unauth_destination,
                             reject_rbl_client sbl-xbl.spamhaus.org,
                             reject_rbl_client list.dsbl.org,
                             reject_rbl_client relays.ordb.org,
                             check_policy_service inet:127.0.0.1:2525,
                             reject_unknown_recipient_domain,
                             check_recipient_maps