Stuff

smtpd_recipient_restrictions =
        permit_mynetworks,
        permit_sasl_authenticated,
        permit_tls_clientcerts,
        reject_unauth_destination,
        reject_invalid_hostname,
        check_client_access pcre:/etc/postfix/tables/client_check,
        check_helo_access pcre:/etc/postfix/tables/helo_check,
        check_sender_access pcre:/etc/postfix/tables/sender_check,
        check_sender_access hash:/etc/postfix/tables/freemail_check,
        check_recipient_access pcre:/etc/postfix/tables/recipient_check,
        reject_non_fqdn_sender,
        reject_unknown_sender_domain,
#       check_sender_mx_access hash:/etc/postfix/tables/mx_access_check,
	reject_non_fqdn_recipient,
        reject_unknown_recipient_domain,
#       check_recipient_mx_access hash:/etc/postfix/tables/mx_access_check,
#       reject_rbl_client relays.ordb.org,
#       reject_rbl_client proxies.relays.monkeys.com,
#       reject_rbl_client proxies.blackholes.easynet.nl,
#       reject_rbl_client zombie.dnsbl.sorbs.net,
#       reject_rbl_client cbl.abuseat.org,
        permit_mx_backup,
        permit