# client # sender # recipient # hostname # invalid # unknown # non_fqnd # unauth smtpd_client_restrictions smtpd_sender_restrictions smtpd_recipient_restrictions smtpd_helo_restrictions smtpd_etrn_restrictions smtpd_data_data_restrictions smtpd_end_of_data_restrictions reject_unknown_client reject_unknown_client_hostname reject_unknown_reverse_client_hostname reject_unknown_sender_domain reject_unknown_recipient_domain reject_unknown_helo_hostname reject_invalid_hostname reject_non_fqdn_hostname reject_non_fqdn_client reject_non_fqdn_recipient reject_unauth_pipelining reject_unauth_destination check_policy_servce permit_my_networks