554 <usermydomain.com>: Sender address rejected: Access denied

From: notinh notien (notinhnotien7hotmail.com)
Date: Mon Aug 28 2006 - 14:39:35 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Hi, all. We have a problem with a working installation of postfix server.
My users could send email when they are on site and at the company, however,
when they are off site and tried to send emails to people within the company
problems would arise with that errors.

So usermydomain.com send email to anotherusermydomain.com or himself, he
would get this 554 error. When the users are off site, their ISP would be
Comcast or oversea ISPs in Taiwan, then this would occur again. Could
someone here identify the problems with my configuration because I am really
dumbfounded with this case?

postconf -n
alias_maps = hash:/etc/aliases,ldap:ldapsharedfolder,
hash:/etc/mail/aliases.majordomo
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
defer_transports =
disable_dns_lookups = no
disable_vrfy_command = yes
inet_interfaces = all
local_recipient_maps =
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_size_limit = 0
mailbox_transport = lmtp:unix:/var/lib/imap/socket/lmtp
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_exceptions = root
message_size_limit = 20971520
mydestination = $myhostname,localhost.$mydomain,localhost
mydomain = mydomain.com
myhostname = mail.mydomain.com
mynetworks = 192.168.18.0/24,192.168.68.0/24,127.0.0.0/8,xxx.xxx.xxx.xxx/32
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases
prepend_delivered_header = file, forward
proxy_interfaces = mail.mydomain.com
queue_directory = /var/spool/postfix
recipient_delimiter = +
sample_directory = /usr/share/doc/packages/postfix/samples
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtpd_banner = $myhostname
smtpd_data_restrictions = warn_if_reject reject_multi_recipient_bounce
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks, warn_if_reject
reject_non_fqdn_hostname, reject_invalid_hostname, permit
smtpd_recipient_restrictions = reject_unauth_pipelining,
reject_non_fqdn_recipient, reject_unknown_recipient_domain,
check_sender_access ldap:ldap_restrictions, permit_sasl_authenticated,
permit_mynetworks, reject_unauth_destination, reject_rhsbl_client
blackhole.securitysage.com, reject_rhsbl_sender
blackhole.securitysage.com, reject_rbl_client dnsbl.sorbs.net,
reject_rbl_client relays.ordb.org, reject_rbl_client sbl-xbl.spamhaus.org,
   reject_rbl_client list.dsbl.org, reject_rbl_client bl.spamcop.net,
reject_rbl_client dnsbl.njabl.org, check_policy_service
unix:/var/spool/postfix/postgrey/socket, permit
smtpd_restriction_classes = local_only
smtpd_sender_restrictions = check_sender_access ldap:ldapcheckexternal,
permit_sasl_authenticated, permit_mynetworks, check_sender_access
hash:/etc/postfix/access, reject_non_fqdn_sender,
reject_unknown_sender_domain, reject_rhsbl_sender dsn.rfc-ignorant.org,
permit
strict_rfc821_envelopes = yes
transport_maps = ldap:ldaptrans
unknown_local_recipient_reject_code = 550
virtual_alias_domains = ldap:ldapvdom
virtual_alias_maps = hash:/etc/postfix/virtual,ldap:ldapcoloc

My access file is just a bunch of IP address I extracted from postfix's log
files and put in there some domains I do not want to receive emails from
like:

a.b.c.d REJECT
buxdude.com REJECT

Thank you very much for your helps.
NN.

_________________________________________________________________
FREE pop-up blocking with the new MSN Toolbar - get it now!
http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]