maps_rbl_domains = dynablock.njabl.org, dnsbl.ahbl.org, relays.ordb.org, opm.blitzed.org, all.rbl.jp, rbl.brasilrbl.com.br, sbl-xbl.spamhaus.org

smtpd_client_restrictions = permit_mynetworks, check_client_access hash:/etc/postfix/riccardo regexp:/etc/postfix/ip-access, reject_maps_rbl

smtp_never_send_ehlo = yes

smtpd_helo_required = yes

smtpd_sender_restrictions = permit_mynetworks, hash:/etc/postfix/riccardo hash:/etc/postfix/access hash:/etc/postfix/sender_checks, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining

smtpd_recipient_restrictions = permit_mynetworks, check_recipient_access hash:/etc/postfix/riccardo hash:/etc/postfix/rcpts_especiais, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_destination, check_sender_access hash:/etc/postfix/access, check_helo_access hash:/etc/postfix/helo_checks permit