1 Topic by Deep

  • Deep
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  • Registered: 2012-04-16
  • Posts: 3

Topic: Postfix Name lookup stopped abruptly

Hi,
I am using Iredmail for last one year, and its the first time having this issue.
- iRedMail version: Version:  0.6.1
- Linux/BSD distribution name and version: CentOS release 5.6 (Final)
Just started having this problem as below :

Apr 16 04:05:08 mail postfix/smtpd[4373]: NOQUEUE: reject: RCPT from unknown[65.55.111.144]: 450 4.1.8 <xxx@msn.com>: Sender address rejected: Domain not found; from=<xxx@msn.com> to=<yyy@mydomain.com> proto=ESMTP helo=<blu0-omc4-s5.blu0.hotmail.com>
Apr 16 04:05:09 mail postfix/smtpd[4373]: disconnect from unknown[65.55.111.144]

The named lookup on the server works fine.
The /etc/resolv.conf and /var/spool/postfix/chroot/etc/resolv.conf are same.
No changes done to any config, but it kept on giving the above error, for sending and receiving mails from any domains outside our local domain

I have about 200 Users, and some application dependent on it.
So have updated the main.cf to ignore the domain check for the smptd_recipient_restrictions.

I am however not comfortable doing this, as this jeopardises the security policy implemented by iredmail.

Any specific reason, why I might be having this issue, which just started today..

Any help is appreciated.

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2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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  • Posts: 31,088

Re: Postfix Name lookup stopped abruptly

Please post output of command 'postconf -n' to help troubleshoot.

3 Reply by Deep

  • Deep
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Re: Postfix Name lookup stopped abruptly

Thanks for the response.

I have attached the file.
the domain name is replaced with mydomain.com

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
delay_warning_time = 0h
disable_vrfy_command = yes
enable_original_recipient = no
home_mailbox = Maildir/
html_directory = no
inet_interfaces = all
inet_protocols = ipv4
mail_name = iRedMail
mail_owner = postfix
mail_version = 0.6.1
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
minimal_backoff_time = 300s
mydestination = $myhostname, localhost, localhost.localdomain, localhost.$myhostname
mydomain = mydomain.com
myhostname = mail.mydomain.com
mynetworks = 127.0.0.0/8
mynetworks_style = subnet
myorigin = mail.mydomain.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:mysql:/etc/postfix/mysql_recipient_bcc_maps_domain.cf, proxy:mysql:/etc/postfix/mysql_recipient_bcc_maps_user.cf
recipient_delimiter = +
relay_domains = $mydestination, proxy:mysql:/etc/postfix/mysql_relay_domains.cf
relay_recipient_maps = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
sample_directory = /usr/share/doc/postfix-2.5.9/samples
sender_bcc_maps = proxy:mysql:/etc/postfix/mysql_sender_bcc_maps_domain.cf, proxy:mysql:/etc/postfix/mysql_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_non_fqdn_sender, reject_non_fqdn_recipient, reject_unlisted_recipient, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, check_policy_service inet:127.0.0.1:10031
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:mysql:/etc/postfix/mysql_sender_login_maps.cf
smtpd_sender_restrictions = permit_mynetworks, reject_sender_login_mismatch, 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:mysql:/etc/postfix/mysql_transport_maps_user.cf, proxy:mysql:/etc/postfix/mysql_transport_maps_domain.cf
unknown_local_recipient_reject_code = 550
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql_virtual_alias_maps.cf, proxy:mysql:/etc/postfix/mysql_domain_alias_maps.cf
virtual_gid_maps = static:501
virtual_mailbox_base = /var/vmail
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_minimum_uid = 501
virtual_transport = dovecot
virtual_uid_maps = static:501

4 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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Re: Postfix Name lookup stopped abruptly

Please paste it in post directly instead of attaching a file. smile

virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf

Does it work if you query mail domains with this file directly? For example:

# postmap -q 'your_domain.com' mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf

5 Reply by Deep

  • Deep
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Re: Postfix Name lookup stopped abruptly

Noted smile

postmap -q 'mydomain.com' mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf
mydomain.com

It queries the mail domains.



ZhangHuangbin wrote:

Please paste it in post directly instead of attaching a file. smile

virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf

Does it work if you query mail domains with this file directly? For example:

# postmap -q 'your_domain.com' mysql:/etc/postfix/mysql_virtual_mailbox_domains.cf

6 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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  • Posts: 31,088

Re: Postfix Name lookup stopped abruptly

Confused. sad

Deep wrote:

The /etc/resolv.conf and /var/spool/postfix/chroot/etc/resolv.conf are same.

Did you check other files under /var/spool/postfix/chroot/etc/?