Message Rejected - ReadList.com

2 msg	postmap header_checks error
10 msg	mailbox_command (dovecot lda) stopped working, ...
5 msg	mynetworks via LDAP lookup
7 msg	Local recipient table in LDAP problem
2 msg	proxy_read_maps
1 msg	smtpd_restriction_class and it's lookup

Message Rejected
\ Duane Hill (24 Jan 2008)
. \ Victor Duchovni (24 Jan 2008)
. . \ Duane Hill (24 Jan 2008)
. . . \ Duane Hill (24 Jan 2008)
. . . \ Duane Hill (24 Jan 2008)
. . . . \ mouss (24 Jan 2008)
. . . . . \ Noel Jones (24 Jan 2008)
. . \ Duane Hill (24 Jan 2008)

12 msg	Customize to filter attachment ?
2 msg	Relay question
14 msg	unnecessary routing?
4 msg	do not use 'reject_maps_rbl'?
9 msg	Fwd: Postfix in OpenVZ.
2 msg	bypass body_checks for local mail?
4 msg	catchall with relay_recipient_maps
4 msg	'Name server failure' is output
3 msg	smtp_sasl_password_maps lookups
16 msg	Postfix Queues on a Ram Disk
15 msg	sendmail compared to smtp sending
3 msg	Postfix does not recognize remote emails
2 msg	How to disable SSLv2 on smtpd opportunistic TLS?

Subject:	Message Rejected
Group:	Postfix-users
From:	Duane Hill
Date:	24 Jan 2008

A customer of ours received a rejection message to a valid email
account. I can't quite figure out why. I'm guessing a map may have
been getting rebuilt when the rejection was happening. This is the
first time this has happened since the initial install of this
filter server. Here is the log for the message that was rejected:

Jan 24 03:03:46 smtpgate postfix/smtpd[60887]: NOQUEUE: reject: RCPT
from vds-dacp2.vispnoc.net[209.163.188.148]: 550 5.1.1
<7corkeys>: Recipient address rejected:
undeliverable address: host 162.42.148.120[162.42.148.120] said: 550
7corkeys unknown user account (in reply to RCPT TO
command); from=<shannon> to=<7corkeys>
proto=ESMTP helo=<vds-dacp2.vispnoc.net>

Here is the results of 'postconf -n':

address_verify_negative_expire_time = 2d
address_verify_negative_refresh_time = 1d
address_verify_positive_expire_time = 14d
address_verify_positive_refresh_time = 7d
address_verify_sender = <>
alias_database = $alias_maps
alias_maps = hash:/usr/local/etc/postfix/aliases
alternate_config_directories = /usr/local/etc/postfix-out
anvil_status_update_time = 300s
biff = no
body_checks = pcre:/usr/local/etc/postfix/body_checks
body_checks_size_limit = 262144
bounce_queue_lifetime = 0
command_directory = /usr/local/sbin
config_directory = /usr/local/etc/postfix
daemon_directory = /usr/local/libexec/postfix
default_destination_concurrency_limit = 5
delay_warning_time = 4h
disable_vrfy_command = yes
header_checks = pcre:/usr/local/etc/postfix/header_checks
html_directory = no
inet_interfaces = $myhostname, localhost
mail_owner = postfix
mailbox_size_limit = 0
mailq_path = /usr/local/bin/mailq
manpage_directory = /usr/local/man
maximal_queue_lifetime = 24h
message_size_limit = 52428800
mime_header_checks = pcre:/usr/local/etc/postfix/mime_header_checks
mydestination = $myhostname
mydomain = $myhostname
myhostname = smtpgate.ndunet.com
mynetworks = cidr:/usr/local/etc/postfix/mynetworks
newaliases_path = /usr/local/bin/newaliases
owner_request_special = no
queue_directory = /var/spool/postfix
queue_minfree = 268435456
readme_directory = no
relay_domains = $mydestination,
cdb:/usr/local/etc/postfix/cgate_domains,
cdb:/usr/local/etc/postfix/imail_domains,
cdb:/usr/local/etc/postfix/other_domains
relay_transport = smtp
sample_directory = /usr/local/etc/postfix
sendmail_path = /usr/local/sbin/sendmail
setgid_group = maildrop
smtp_connection_cache_destinations = 162.42.148.3, 162.42.148.120
smtp_connection_cache_time_limit = 30s
smtpd_banner = $myhostname NO UCE ESMTP
smtpd_client_connection_count_limit = 2
smtpd_client_connection_rate_limit = 4
smtpd_client_event_limit_exceptions = $mynetworks
smtpd_client_message_rate_limit = 240
smtpd_client_recipient_rate_limit = 720
smtpd_error_sleep_time = 12s
smtpd_hard_error_limit = 6
smtpd_helo_required = yes
smtpd_junk_command_limit = 3
smtpd_recipient_limit = 50
smtpd_recipient_overshoot_limit = 60
smtpd_recipient_restrictions = permit_mynetworks,
check_client_access cidr:/usr/local/etc/postfix/client_access_wite,
reject_unknown_reverse_client_hostname,
check_helo_access hash:/usr/local/etc/postfix/helo_allow,
reject_non_fqdn_helo_hostname,
check_helo_access cidr:/usr/local/etc/postfix/ip_helo_access,
check_helo_access hash:/usr/local/etc/postfix/cgate_helo_access,
check_helo_access cdb:/usr/local/etc/postfix/imail_helo_access,
check_helo_access pcre:/usr/local/etc/postfix/helo_access,
reject_non_fqdn_sender,
reject_unknown_sender_domain,
check_sender_mx_access cidr:/usr/local/etc/postfix/sender_mx_access,
reject_non_fqdn_recipient,
reject_unauth_destination,
check_recipient_access hash:/usr/local/etc/postfix/spam_lovers,
reject_rbl_client zen.spamhaus.org,
reject_rbl_client bl.spamcop.net,
reject_rbl_client list.dsbl.org,
reject_unverified_recipient,
check_policy_service unix:private/YnPolicy2,
reject_multi_recipient_bounce,
reject_unauth_pipelining,
permit
smtpd_soft_error_limit = 2
smtpd_timeout = 20s
strict_rfc821_envelopes = yes
transport_maps = cdb:/usr/local/etc/postfix/cgate_transport,
cdb:/usr/local/etc/postfix/imail_transport,
cdb:/usr/local/etc/postfix/other_transport
unknown_address_reject_code = 550
unknown_client_reject_code = 550
unknown_hostname_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550

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