I too am trying to achieve this, here is my blocked_senders map followed by my
postconf -n output:
Would this achieve the desired results of restricting inbound email with faked
"From" headers?
Many thanks in advance,
.vp
### blocked_senders ###
example.com 554 example.com sender? But you're not in my network
...
example.org 554 example.org sender? But you're not in my network
...
example.net 554 example.net sender? But you're not in my network
...
example.us 554 example.us sender? But you're not in my network
...
#######################################################
alias_database = dbm:/etc/postfix/aliases
alias_maps = dbm:/etc/postfix/aliases
command_directory = /postfix/sbin
config_directory = /postfix/etc
content_filter = avx:127.0.0.1:10025
daemon_directory = /postfix/libexec
debug_peer_level = 2
default_process_limit = 500
disable_vrfy_command = yes
html_directory = no
mail_owner = postfix
mailbox_size_limit = 1024000000
mailq_path = /postfix/bin/mailq
manpage_directory = /postfix/man
message_size_limit = 15360000
mydomain = dmx.example.com
myhostname = smtp1.dmx.example.com
mynetworks = 127.0.0.0/8, !192.168.1.50, 192.168.1.0/24
myorigin = $myhostname
newaliases_path = /postfix/bin/newaliases
queue_directory = /postfix/var/spool/mqueue
rbl_reply_maps = dbm:/$config_directory/rbl_reply
readme_directory = /postfix/doc
recipient_delimiter = +
relay_domains = example.com example.org example.net us.example.com example.us
localhost
sample_directory = /postfix/doc/samples
sendmail_path = /postfix/sbin/sendmail
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP
smtpd_client_restrictions = ignore_policy_error, check_policy_service
inet:localhost:5577
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks, check_sender_access
dbm:/etc/postfix/blocked_senders, reject_rbl_client 67679988282.rbl.com,
reject_unauth_destination
smtpd_sender_restrictions = reject_unauth_pipelining,
reject_unknown_sender_domain, reject_non_fqdn_sender,
check_recipient_access dbm:/etc/postfix/access
transport_maps = dbm:/etc/postfix/transport
unknown_address_reject_code = 550
unknown_hostname_reject_code = 550
unknown_local_recipient_reject_code = 450
> Date: Thu, 4 Dec 2008 10:02:08 -0500
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: Re: Domain emails from outside
>
> On 12/4/2008, Gabriel Hahmann ([EMAIL PROTECTED]) wrote:
>> My configuration is listed below
>
> Output of postconf -n is preferred...
>
> --
>
> Best regards,
>
> Charles
