From: Mike Lewis (cajun2112gmail.com)
Date: Fri May 04 2007 - 13:16:33 CDT

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I'm seeing a lot of these type errors from MAILER-DAEMON:

Transcript of session follows.

 Out: 451 4.3.5 Server configuration error
 In: QUIT
 Out: 221 2.0.0 Bye

I'm also seeing a similar error in the maillog:

May 4 12:26:24 moe postfix/smtpd[18778]: NOQUEUE: reject: CONNECT
from x6.develooper.com[63.251.223.186]: 451 4.3.5 Server configuration
error; proto=SMTP

I'm thinking I have an error somewhere, but not sure where. I would
assume in the smtpd restrictions.

Thanks for any guidance,
Mike

[rootmoe postfix]# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/postfix/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
disable_vrfy_command = yes
html_directory = no
mail_owner = postfix
mailbox_command = /usr/bin/procmail
mailbox_size_limit = 0
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
message_size_limit = 0
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
myhostname = moe.cajuninc.com
mynetworks = 74.236.189.151,192.168.1.0/24, 127.0.0.0/8
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.1.5/README_FILES
relay_domains =
relayhost = [mail.bellsouth.net]
sample_directory = /usr/share/doc/postfix-2.1.5/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_client_restrictions = permit_mynetworks, check_client_access
hash:/etc/postfix/access, reject_unknown_client, #
reject_unknown_client_hostname Postfix < 2.3 permit
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_delay_reject = no
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks, check_helo_access
hash:/etc/postfix/access, reject_invalid_hostname, #
reject_invalid_helo_hostname Postfix < 2.3
reject_non_fqdn_hostname, # reject_non_fqdn_helo_hostname
Postfix < 2.3 reject_unknown_hostname, #
reject_unknown_helo_hostname Postfix < 2.3 permit
smtpd_recipient_restrictions = permit_mynetworks,
reject_unlisted_recipient, reject_unknown_recipient_domain,
 reject_non_fqdn_recipient, reject_unauth_destination,
reject_rbl_client sbl-xbl.spamhaus.org, reject_rhsbl_sender
sbl-xbl.spamhaus.org, reject_rbl_client bl.spamcop.net,
reject_rbl_client list.dsbl.org, reject_rbl_client
dul.dnsbl.sorbs.net, reject_rbl_client relays.ordb.org,
reject_rbl_client opm.blitzed.org, reject_rbl_client
cbl.abuseat.org, reject_rbl_client sbl.spamhaus.org,
reject_rhsbl_client blackhole.securitysage.com,
reject_rhsbl_sender blackhole.securitysage.com, permit
smtpd_sender_restrictions = check_sender_access
hash:/etc/postfix/access, reject_non_fqdn_sender,
reject_unknown_sender_domain permit
virtual_alias_maps = hash:/etc/postfix/virtual

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