question about receive_override_options

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question about receive_override_options
\ Peter Rabbitson (14 Jun 2007)
. \ MrC (14 Jun 2007)
. . \ Peter Rabbitson (14 Jun 2007)
. . . \ MrC (14 Jun 2007)
. \ mouss (15 Jun 2007)

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Subject:	question about receive_override_options
Group:	Postfix-users
From:	Peter Rabbitson
Date:	14 Jun 2007

Hello,

I use an external scanner ( content_filter = scanner:[localhost]:10025 )
and I am having a problem with duplicate messages triggered via
sender_bcc_maps. The fine manual explains why the double-expansion is
occurring, and that I need to set
receive_override_options=no_address_mappings before I send mail to the
content filter. What I am confused about is how exactly should I do
this. Do I:

A: simply set receive_override_options=no_address_mappings in main.cf,
so all smtpd/pickup daemons will inherit it automatically, and only my
scanner back-feed smtpd will perform the mapping as it already has -o
receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_mi lters

or

B: I walk through master.cf and stick -o
receive_override_options=no_address_mappings on every smtpd/pickup service

My postconf -n and master.cf are included below for further reference

Thanks!

Peter

root@Arzamas:~# postconf -n
alias_database = $alias_maps
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
backwards_bounce_logfile_compatibility = no
biff = no
bounce_queue_lifetime = 24h
bounce_size_limit = 20000
config_directory = /etc/postfix
content_filter = scanner:[localhost]:10025
hash_queue_depth = 1
hash_queue_names = ''
in_flow_delay = 1s
inet_interfaces = <withheld>
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
maximal_queue_lifetime = 4d
message_size_limit = 26214400
minimal_backoff_time = 15m
mydestination = $mydomain localhost.$mydomain localhost
mydomain = <withheld>
myhostname = <withheld>
mynetworks = 127.0.0.0/8 192.168.58.0/24 $inet_interfaces
myorigin = $mydomain
parent_domain_matches_subdomains =
queue_directory = /var/spool/postfix
queue_minfree = 100000000
recipient_delimiter = +
relay_domains =
sender_bcc_maps = hash:/etc/postfix/bcc_watchlist
smtp_bind_address = <withheld>
smtp_connect_timeout = 5s
smtp_connection_reuse_time_limit = 5m
smtp_helo_timeout = 1m
smtp_mail_timeout = 1m
smtp_mx_address_limit = 0
smtp_quit_timeout = 10s
smtp_skip_quit_response = yes
smtpd_authorized_verp_clients = $mynetworks
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_delay_reject = yes
smtpd_error_sleep_time = 3s
smtpd_hard_error_limit = 20
smtpd_junk_command_limit = 20
smtpd_recipient_restrictions = permit_mynetworks
reject_unauth_destination
smtpd_sender_restrictions = reject_unknown_sender_domain
check_sender_access hash:/etc/postfix/config/sender_access.table
smtpd_soft_error_limit = 5
smtpd_timeout = 30s
syslog_name = postfix
unknown_address_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550
virtual_mailbox_domains = /etc/postfix/config/dbmail_domains.list
virtual_mailbox_maps = mysql:/etc/postfix/dbmail_address_list.cf
virtual_transport = dbmail-lmtp:[localhost]:24
root@Arzamas:~#

=============================
=============================
master.cf
=============================
=============================

#
# Postfix master process configuration file. For details on the format
# of the file, see the Postfix master(5) manual page.
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
smtp inet n - - - - smtpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - - 300 1 qmgr
tlsmgr unix - - - 1000? 1 tlsmgr
rewrite unix - - - - - trivial-rewrite
bounce unix - - - - 0 bounce
defer unix - - - - 0 bounce
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
smtp unix - - - - - smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix - - - - - smtp
-o fallback_relay=
showq unix n - - - - showq
error unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache

# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender
$recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
${nexthop} ${user} ${extension}
mailman unix - - n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}

# dbmail transport
dbmail-lmtp unix - - - - - lmtp
-o disable_dns_lookups=yes

# virus scanning transports
scanner unix - - - - 3 smtp
-o smtp_send_xforward_command=yes
-o smtp_data_done_timeout=900
-o disable_dns_lookups=yes
-o max_use=20
localhost:10026 inet n - - - - smtpd
-o content_filter=
-o inet_interfaces=127.0.0.1
-o disable_dns_lookups=yes
-o smtpd_delay_reject=no
-o smtpd_client_restrictions=permit_inet_interfaces,reject
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_inet_interfaces,reject
-o smtpd_data_restrictions=
-o smtpd_end_of_data_restrictions=
-o smtpd_etrn_restrictions=
-o smtpd_hard_error_limit=19
-o smtpd_soft_error_limit=20
-o smtpd_error_sleep_time=0
-o smtpd_client_connection_count_limit=0
-o smtpd_client_connection_rate_limit=0
-o
receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_mi lters
-o local_header_rewrite_clients=