On Thu, 28 Apr 2011 11:20:16 -0700 motty.cruz <[email protected]> articulated:
> Looks like one of our clients are trying to email us but their emails > are getting rejected. I'm sorry I will not display customers ip > > Apr 28 11:11:12 host postfix/smtpd[48962]: warning: hostname > mail.tld.com does not resolve to address xxx.xxx.xxx > > Apr 28 11:11:12 host postfix/smtpd[48962]: connect from > unknown[xxx.xxx.xxx] > > Apr 28 11:11:12 host postfix/smtpd[48962]: NOQUEUE: reject: RCPT from > unknown[xxx.xxx.xxx]: 450 4.1.8 <[email protected]>: Sender address > rejected: Domain not found; from=<client.tld.com> > to=<[email protected]> proto=ESMTP helo=<mail.tld.com> > > #postconf -n > > address_verify_service_name = verify > alias_maps = hash:/usr/local/etc/postfix/aliases > allow_min_user = no > allow_untrusted_routing = no > alternate_config_directories = /usr/local/etc/postfix-out > always_add_missing_headers = no > anvil_rate_time_unit = 60s > anvil_status_update_time = 600s > biff = no > bounce_queue_lifetime = 1h > command_directory = /usr/local/sbin > config_directory = /usr/local/etc/postfix > content_filter = smtp-amavis:[127.0.0.1]:10024 > daemon_directory = /usr/local/libexec/postfix > data_directory = /var/db/postfix > debug_peer_level = 2 > delay_warning_time = 0h > deliver_lock_attempts = 20 > disable_verp_bounces = no > disable_vrfy_command = yes > html_directory = no > in_flow_delay = 1s > local_recipient_maps = hash:/usr/local/etc/postfix/userdb > mail_owner = postfix > mailq_path = /usr/local/bin/mailq > manpage_directory = /usr/local/man > message_size_limit = 50000 > mydestination = tld.com, tld2.com > myhostname = host.tld.com > mynetworks = 127.0.0.0/8, xxx.xxx.xxx/32 > myorigin = tld.com > newaliases_path = /usr/local/bin/newaliases > queue_directory = /var/spool/postfix > readme_directory = no > resolve_null_domain = no > sample_directory = /usr/local/etc/postfix > sendmail_path = /usr/local/sbin/sendmail > setgid_group = maildrop > smtpd_banner = hostname.tld.com > smtpd_client_connection_count_limit = 50 > smtpd_client_restrictions = hash:/usr/local/etc/postfix/access > permit_mynetworks, > reject_rbl_client zen.spamhaus.org, > reject_rbl_client bl.spamcop.net, > reject_rbl_client b.barracudacentral.org > smtpd_error_sleep_time = 0 > smtpd_helo_required = yes > smtpd_helo_restrictions = permit_mynetworks, > reject_non_fqdn_hostname > smtpd_recipient_restrictions = permit_mynetworks, > reject_unauth_destination, > reject_invalid_hostname, > reject_non_fqdn_hostname, > reject_non_fqdn_sender, > reject_non_fqdn_recipient, > reject_unknown_sender_domain, > reject_unknown_recipient_domain, > smtpd_sender_restrictions = permit_mynetworks, > reject_unknown_sender_domain, > reject_non_fqdn_sender > unknown_address_reject_code = 554 > unknown_client_reject_code = 554 > unknown_hostname_reject_code = 554 > unknown_local_recipient_reject_code = 550 > unknown_relay_recipient_reject_code = 550 > unverified_recipient_defer_code = 450 > unverified_recipient_reject_code = 550 > unverified_sender_defer_code = 450 > unverified_sender_reject_code = 550 Please lose the HTML format. GMail has an option to post in plain ASCII text. Please use it. Now, exactly what is your question? A client is trying to send you an e-mail and it is being rejected, correct? The error message clearly tells you why that is happening. In any case, without the offending IP, there is no way for anyone to check out the validity of the error message. -- Jerry ✌ [email protected] _____________________________________________________________________ TO REPORT A PROBLEM see http://www.postfix.org/DEBUG_README.html#mail TO (UN)SUBSCRIBE see http://www.postfix.org/lists.html
