reject non-fqdn sender addresses

install/tpl/gentoo_postfix.conf.master

@@ -21,7 +21,7 @@ relay_recipient_maps = mysql:{config_dir}/mysql-virtual_relayrecipientmaps.cf
 smtpd_sender_login_maps = proxy:mysql:{config_dir}/mysql-virtual_sender_login_maps.cf
 proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps $smtpd_recipient_restrictions
 smtpd_helo_required = yes
-smtpd_helo_restrictions = permit_sasl_authenticated, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo
+smtpd_helo_restrictions = permit_sasl_authenticated, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, reject_non_fqdn_hostname, reject_invalid_helo_hostname, reject_unknown_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo
 smtpd_sender_restrictions = check_sender_access regexp:{config_dir}/tag_as_originating.re {reject_slm}, permit_mynetworks, permit_sasl_authenticated, check_sender_access mysql:{config_dir}/mysql-virtual_sender.cf, check_sender_access regexp:{config_dir}/tag_as_foreign.re
 smtpd_client_restrictions = check_client_access mysql:{config_dir}/mysql-virtual_client.cf
 smtpd_client_message_rate_limit = 100