smtpd_recipient_restrictions =
permit_sasl_authenticated,
permit_mynetworks,
check_policy_service inet:127.0.0.1:60000,
reject_unauth_destination,
reject_unknown_recipient_domain
smtpd_client_restrictions =
permit_sasl_authenticated,
permit_mynetworks,
reject_unauth_pipelining
smtpd_helo_restrictions =
sleep 2,
permit_sasl_authenticated,
permit_mynetworks,
reject_invalid_helo_hostname,
reject_non_fqdn_helo_hostname
smtpd_sender_restrictions =
permit_sasl_authenticated,
permit_mynetworks,
reject_non_fqdn_sender