Parent domains confusion?

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Parent domains confusion?
\ MacShane, Tracy (27 Mar 2008)
. \ Victor Duchovni (28 Mar 2008)
. . \ MacShane, Tracy (2 May 2008)
. . . \ (Wietse Venema) (2 May 2008)
. . . . \ MacShane, Tracy (4 May 2008)

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Subject:	Parent domains confusion?
Group:	Postfix-users
From:	MacShane, Tracy
Date:	27 Mar 2008

I'm a bit stumped as to what's going on with one of my client access
maps. The objective is to have all ".gov.au" hosts from all subdomains
exempt from the majority of our smtpd_*_restrictions checks.

Postfix version is 2.2.10
parent_domain_matches_subdomains = debug_peer_list, fast_flush_domains,
mynetworks, permit_mx_backup_networks, qmqpd_authorized_clients,
relay_domains, smtpd_access_maps

client_acces
--------------
# ACCESS (5)
# All .gov.au addresses
.gov.au OK
--------------

However, "postmap -q defence.gov.au hash:/etc/postfix/client_access"
returns nothing. It only matches ".gov.au", which isn't that helpful.

Output of postconf -n (if needed):

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_percent_hack = no
bounce_queue_lifetime = 3d
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = imss:[127.0.0.1]:10025
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
debug_peer_list =
default_process_limit = 200
disable_vrfy_command = yes
header_checks = pcre:/etc/postfix/header_checks
html_directory = /usr/share/doc/postfix-2.2.2-documentation/html
inet_interfaces = smtp3.example.gov.au, localhost
local_recipient_maps = proxy:unix:passwd.byname $alias_maps
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
maximal_queue_lifetime = 3d
message_size_limit = 13107200
mydestination = $myhostname, localhost.$mydomain, localhost
mydomain = example.gov.au
myhostname = smtp3.example.com
mynetworks = 127.0.0.0/8, xxx.xxx.0.0/16,
mynetworks_style = subnet
myorigin = $myhostname
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.2.10/README_FILES
recipient_delimiter = +
relay_domains = example.com, example.gov.au
relay_recipient_maps = hash:/etc/postfix/relay_recipients
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/postfix-2.2.10/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
show_user_unknown_table_name = no
smtpd_data_restrictions = reject_unauth_pipelining,
smtpd_helo_required = yes
smtpd_recipient_limit = 500
smtpd_recipient_restrictions = reject_non_fqdn_recipient,
permit_mynetworks, reject_non_fqdn_sender, reject_unauth_destination,
reject_invalid_hostname, reject_non_fqdn_hostname,
check_policy_service unix:private/policyd-spf, check_recipient_access
pcre:/etc/postfix/recipient_access, check_helo_access
hash:/etc/postfix/helo_access, check_client_access
cidr:/etc/postfix/cidr_client_access, check_client_access
hash:/etc/postfix/client_access, check_client_access
pcre:/etc/postfix/pcre_client_access, check_sender_access
hash:/etc/postfix/sender_access, check_sender_access
hash:/etc/postfix/sender_bypass, reject_unknown_sender_domain,
check_sender_access hash:/etc/postfix/verified_sender,
check_recipient_access hash:/etc/postfix/rbl_recipient_access,
reject_rbl_client xxxWFD.r.mail-abuse.com, reject_rbl_client
xxxWFD.q.mail-abuse.com
smtpd_timeout = 60
strict_rfc821_envelopes = yes
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550