1

Topic: Error with only one particular sender

OK, so all the e-mail from this specific person is being bounced:

NOQUEUE: reject: RCPT from rrcs-74-218-121-202.central.biz.rr.com[74.218.121.202]: 554 5.7.1 <rrcs-74-218-121-202.central.biz.rr.com[74.218.121.202]>: Client host rejected: Access denied; from=address.a to=address.b proto=ESMTP helo=<notes2.kinetico.com>

output of postconf -n is:

alias_database = hash:/etc/postfix/aliases
alias_maps = hash:/etc/postfix/aliases
allow_min_user = no
biff = no
bounce_queue_lifetime = 1d
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
disable_vrfy_command = yes
enable_original_recipient = no
header_checks = pcre:/etc/postfix/header_checks.pcre
home_mailbox = Maildir/
html_directory = no
inet_protocols = all
mail_name = GWS-Mail
mail_owner = postfix
mail_version = 0.5.1
mailbox_command = /usr/libexec/dovecot/deliver
mailbox_size_limit = 15728640
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
maximal_backoff_time = 4000s
maximal_queue_lifetime = 1d
message_size_limit = 15728640
minimal_backoff_time = 300s
mydestination = $myhostname, localhost, localhost.localdomain, localhost.$myhostname
mynetworks = 127.0.0.0/8, mail.gordonwater.com, gordonwater.com
myorigin = mail.gordonwater.com
newaliases_path = /usr/bin/newaliases.postfix
proxy_read_maps = $canonical_maps $lmtp_generic_maps $local_recipient_maps $mydestination $mynetworks $recipient_bcc_maps $recipient_canonical_maps $relay_domains $relay_recipient_maps $relocated_maps $sender_bcc_maps $sender_canonical_maps $smtp_generic_maps $smtpd_sender_login_maps $transport_maps $virtual_alias_domains $virtual_alias_maps $virtual_mailbox_domains $virtual_mailbox_maps
queue_directory = /var/spool/postfix
queue_run_delay = 300s
readme_directory = /usr/share/doc/postfix-2.5.9/README_FILES
recipient_bcc_maps = proxy:ldap:/etc/postfix/ldap_recipient_bcc_maps_domain.cf, proxy:ldap:/etc/postfix/ldap_recipient_bcc_maps_user.cf
relay_domains = $mydestination, proxy:ldap:/etc/postfix/ldap_relay_domains.cf
relay_recipient_maps = proxy:ldap:/etc/postfix/ldap_virtual_mailbox_maps.cf
sample_directory = /usr/share/doc/postfix-2.5.9/samples
sender_bcc_maps = proxy:ldap:/etc/postfix/ldap_sender_bcc_maps_domain.cf, proxy:ldap:/etc/postfix/ldap_sender_bcc_maps_user.cf
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_enforce_tls = no
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, check_helo_access pcre:/etc/postfix/helo_access.pcre
smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unlisted_recipient, permit_mynetworks, check_policy_service inet:127.0.0.1:7777, permit_sasl_authenticated, reject_unauth_destination, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, check_policy_service inet:127.0.0.1:10031, reject_rbl_client zen.spamhaus.org,
smtpd_reject_unlisted_recipient = yes
smtpd_reject_unlisted_sender = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_local_domain = 
smtpd_sasl_path = dovecot-auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sender_login_maps = proxy:ldap:/etc/postfix/ldap_sender_login_maps.cf
smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated
smtpd_tls_cert_file = /etc/pki/tls/certs/iRedMail_CA.pem
smtpd_tls_key_file = /etc/pki/tls/private/iRedMail.key
smtpd_tls_loglevel = 0
smtpd_tls_security_level = may
tls_random_source = dev:/dev/urandom
transport_maps = proxy:ldap:/etc/postfix/ldap_transport_maps_user.cf, proxy:ldap:/etc/postfix/ldap_transport_maps_domain.cf
unknown_local_recipient_reject_code = 550
virtual_alias_maps = proxy:ldap:/etc/postfix/ldap_virtual_alias_maps.cf, proxy:ldap:/etc/postfix/ldap_virtual_group_maps.cf
virtual_gid_maps = static:500
virtual_mailbox_base = /var/vmail/vmail01
virtual_mailbox_domains = proxy:ldap:/etc/postfix/ldap_virtual_mailbox_domains.cf
virtual_mailbox_maps = proxy:ldap:/etc/postfix/ldap_virtual_mailbox_maps.cf
virtual_minimum_uid = 500
virtual_transport = dovecot
virtual_uid_maps = static:500

2

Re: Error with only one particular sender

I'm not sure I understand what you're saying. One of your users can't send mail? Or a remote server can't send mail to your server?

In case 1), check settings for antivirus on user's computer, mail client settings and so on.

In case 2): local blacklist (policyd)? Access policy (/etc/postfix/access, helo_access)?

3

Re: Error with only one particular sender

I got the same error code to receive mails from some mailservers.