smtpd_recipient_restrictions =
        permit_sasl_authenticated,
        reject_invalid_hostname,
        reject_unknown_recipient_domain,
        reject_unauth_pipelining,
        permit_mynetworks,
        reject_non_fqdn_hostname,
        reject_non_fqdn_sender,
        reject_non_fqdn_recipient,
        reject_unauth_destination,
        reject_unknown_sender_domain,
        reject_unknown_hostname,
        reject_rbl_client multi.uribl.com,
        reject_rbl_client dsn.rfc-ignorant.org,
        reject_rbl_client dul.dnsbl.sorbs.net,
        reject_rbl_client list.dsbl.org,
        reject_rbl_client sbl-xbl.spamhaus.org,
        reject_rbl_client bl.spamcop.net,
#       reject_rbl_client rblmap.tu-berlin.de,
#       reject_rbl_client relays.ordb.org,
        reject_rbl_client dnsbl.sorbs.net,
#       reject_rbl_client opm.blitzed.org,
        reject_rbl_client blackholes.easynet.nl,
        reject_rbl_client cbl.abuseat.org,
        reject_rbl_client ix.dnsbl.manitu.net,
        check_policy_service inet:127.0.0.1:60000,
        permit