smtpd_helo_restrictions =
    permit_mynetworks,
    check_helo_access
        hash:/etc/postfix/helo_access,
    reject_non_fqdn_hostname,
    reject_invalid_hostname,
    permit

smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain =
smtpd_recipient_restrictions =
    permit_mynetworks,
    reject_invalid_hostname,
    reject_non_fqdn_sender,
    reject_non_fqdn_recipient,
    reject_unknown_sender_domain,
    reject_unknown_recipient_domain,
    permit_sasl_authenticated,
#    permit_mynetworks,
    reject_unauth_destination,
    check_policy_service unix:/var/spool/postfix/postgrey/socket,
    reject_rbl_client sbl-xbl.spamhaus.org,
    reject_rbl_client list.dsbl.org,
    reject_rbl_client combined.njabl.org,
    reject_rbl_client bl.spamcop.net,
    reject_rbl_client combined.rbl.msrbl.net
    permit


mynetworks_style=host

mynetworks = 192.168.0.0/24, 192.168.1.0/24