Hi list, I have noted over the last week or so my DNS servers are dumping lots of messages for bogus domain lookups. Examining the postfix queue with postqueue -p: I see many (Host or domain name not found. Name service error for name=bdgiedjhea.po6e4ina.com type=MX: Host not found, try again) Jake@bdgiedjhea.po6e4ina.com My question - why does this stay in the message queue - why not dumped back with message undeliverable or dropped? I understand this is probably related to my config - which follows: <main.cf> queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix mail_owner = postfix myhostname = <mumble> mydomain = <mumble> myorigin = $mydomain inet_interfaces = all inet_protocols = ipv4 proxy_interfaces = <mumble> mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, mail.$mydomain, www.$mydomain, ftp.$mydomain unknown_local_recipient_reject_code = 550 mynetworks = 192.168.230.0/24, 127.0.0.0/8 relay_domains = virtual_alias_domains = hash:/etc/postfix/virtual_alias_domains virtual_alias_maps = hash:/etc/postfix/virtual_alias_maps smtpd_helo_required = yes smtpd_delay_reject = yes strict_rfc821_envelopes = yes smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_sender_login_maps = hash:/etc/postfix/smtpd_sender_login_map smtpd_client_restrictions = check_client_access hash:/etc/postfix/access smtpd_recipient_restrictions = reject_unauth_pipelining, reject_non_fqdn_recipient, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unknown_recipient_domain, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_recipient_access hash:/etc/postfix/roleaccount_exceptions, reject_invalid_hostname, check_helo_access pcre:/etc/postfix/helo_checks, reject_rbl_client sbl-xbl.spamhaus.org, permit smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes tls_random_exchange_name = /var/spool/postfix/prng_exch smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_use_tls = yes smtpd_tls_security_level = may smtpd_tls_auth_only = yes smtpd_tls_key_file = /etc/pki/tls/private/ssl.key.private.decrypted smtpd_tls_cert_file = /etc/pki/tls/certs/<mumble> smtpd_tls_CAfile = /etc/pki/tls/certs/sub.class2.server.ca.pem smptd_tls_loglevel = 2 smtpd_tls_received_header = yes smtpd_sasl_tls_security_options = noanonymous smtpd_sasl_security_options = noanonymous mailbox_size_limit = 102400000 message_size_limit = 40960000 in_flow_delay = 1s alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases home_mailbox = Maildir/ content_filter=amavisfeed:[127.0.0.1]:10024 debug_peer_level = 2 debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin xxgdb $daemon_directory/$process_name $process_id & sleep 5 sendmail_path = /usr/sbin/sendmail.postfix newaliases_path = /usr/bin/newaliases.postfix mailq_path = /usr/bin/mailq.postfix setgid_group = postdrop html_directory = no manpage_directory = /usr/share/man sample_directory = /usr/share/doc/postfix-2.2.2/samples readme_directory = /usr/share/doc/postfix-2.2.2/README_FILES </main.cf>
Any suggestions appreciated. TIA rob