Hello everybody, On my mail system mails to unknown users are replied automatically and an information is forwarded to postmaster like the following:

host public/lmtp[public/lmtp] said: 550-Mailbox unknown. Either there is no mailbox associated with this 550-name or you do not have authorization to see it. 550 5.1.1 User unknown (in reply to RCPT TO command)

In times where hundreds of virus mails arrived this is of course not the right choice, but I've not managed to redirect mails to unknown users to the postmaster account. I'm currently running postfix with cyrus and SASL. Mailbox transport is set to lmtp:unix:public/lmtp and therefor luser_relay does not work. Any ideas how to configure the mail system in the desired way are welcome. Thanks in advance Achim For more information the output of postconf is appended in the following lines: 2bounce_notice_recipient = postmaster access_map_reject_code = 554 alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases allow_mail_to_commands = alias,forward allow_mail_to_files = alias,forward allow_min_user = no allow_percent_hack = yes allow_untrusted_routing = no alternate_config_directories = always_bcc = append_at_myorigin = yes append_dot_mydomain = yes authorized_verp_clients = $mynetworks berkeley_db_create_buffer_size = 16777216 berkeley_db_read_buffer_size = 131072 best_mx_transport = biff = yes body_checks = body_checks_size_limit = 51200 bounce_notice_recipient = postmaster bounce_service_name = bounce bounce_size_limit = 50000 broken_sasl_auth_clients = no canonical_maps = hash:/etc/postfix/canonical cleanup_service_name = cleanup command_directory = /usr/sbin command_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ command_time_limit = 1000s config_directory = /etc/postfix content_filter = daemon_directory = /usr/lib/postfix daemon_timeout = 18000s debug_peer_level = 2 debug_peer_list = default_database_type = hash default_delivery_slot_cost = 5 default_delivery_slot_discount = 50 default_delivery_slot_loan = 3 default_destination_concurrency_limit = 20 default_destination_recipient_limit = 50 default_extra_recipient_limit = 1000 default_minimum_delivery_slots = 3 default_privs = nobody default_process_limit = 100 default_rbl_reply = $rbl_code Service unavailable; $rbl_class [$rbl_what] blocked using $rbl_domain${rbl_reason?; $rbl_reason} default_recipient_limit = 10000 default_transport = smtp default_verp_delimiters = += defer_code = 450 defer_service_name = defer defer_transports = delay_notice_recipient = postmaster delay_warning_time = 0h deliver_lock_attempts = 20 deliver_lock_delay = 1s disable_dns_lookups = no disable_mime_input_processing = no disable_mime_output_conversion = no disable_verp_bounces = no disable_vrfy_command = no dont_remove = 0 double_bounce_sender = double-bounce duplicate_filter_limit = 1000 empty_address_recipient = MAILER-DAEMON error_notice_recipient = postmaster error_service_name = error expand_owner_alias = no export_environment = TZ MAIL_CONFIG extract_recipient_limit = 10240 fallback_relay = fallback_transport = smtp:postmaster@buw-soft.de fast_flush_domains = $relay_domains fast_flush_purge_time = 7d fast_flush_refresh_time = 12h fault_injection_code = 0 flush_service_name = flush fork_attempts = 5 fork_delay = 1s forward_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ forward_path = $home/.forward${recipient_delimiter}${extension},$home/.forward hash_queue_depth = 1 hash_queue_names = incoming,active,deferred,bounce,defer,flush,hold header_address_token_limit = 10240 header_checks = header_size_limit = 102400 helpful_warnings = yes home_mailbox = hopcount_limit = 50 ignore_mx_lookup_error = no import_environment = MAIL_CONFIG MAIL_DEBUG MAIL_LOGTAG TZ XAUTHORITY DISPLAY in_flow_delay = 1s inet_interfaces = all initial_destination_concurrency = 5 invalid_hostname_reject_code = 501 ipc_idle = 100s ipc_timeout = 3600s line_length_limit = 2048 lmtp_cache_connection = yes lmtp_connect_timeout = 0s lmtp_data_done_timeout = 600s lmtp_data_init_timeout = 120s lmtp_data_xfer_timeout = 180s lmtp_lhlo_timeout = 300s lmtp_mail_timeout = 300s lmtp_quit_timeout = 300s lmtp_rcpt_timeout = 300s lmtp_rset_timeout = 300s lmtp_sasl_auth_enable = no lmtp_sasl_password_maps = lmtp_sasl_security_options = noplaintext, noanonymous lmtp_skip_quit_response = no lmtp_tcp_port = 24 local_command_shell = local_destination_concurrency_limit = 2 local_destination_recipient_limit = 1 local_recipient_maps = local_transport = local:$myhostname luser_relay = postmaster@buw-soft.de mail_name = Postfix mail_owner = postfix mail_release_date = 20030305 mail_spool_directory = /var/mail mail_version = 2.0.6 mailbox_command = mailbox_command_maps = mailbox_delivery_lock = fcntl, dotlock mailbox_size_limit = 5120000000 mailbox_transport = lmtp:unix:public/lmtp mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man maps_rbl_domains = maps_rbl_reject_code = 554 masquerade_classes = envelope_sender, header_sender, header_recipient masquerade_domains = masquerade_exceptions = root max_idle = 100s max_use = 100 maximal_backoff_time = 4000s maximal_queue_lifetime = 5d message_size_limit = 1024000000 mime_boundary_length_limit = 2048 mime_header_checks = $header_checks mime_nesting_limit = 100 minimal_backoff_time = 1000s mydestination = $myhostname, localhost.$mydomain, $mydomain, buwmail.dnsalias.com,buw.dnsalias.com,buw-soft.com,DSL01.212.114.214.245.NEFkom.net mydomain = buw-soft.de myhostname = buwserver.buw-soft.de mynetworks = 127.0.0.0/8 131.188.115.0/24 mynetworks_style = subnet myorigin = $mydomain nested_header_checks = $header_checks newaliases_path = /usr/bin/newaliases non_fqdn_reject_code = 504 notify_classes = resource,software,bounce,2bounce,delay,policy,protocol owner_request_special = yes parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps permit_mx_backup_networks = pickup_service_name = pickup prepend_delivered_header = command, file, forward process_id_directory = pid program_directory = /usr/lib/postfix propagate_unmatched_extensions = canonical, virtual proxy_interfaces = 1.2.3.4 proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks qmgr_clog_warn_time = 300s qmgr_fudge_factor = 100 qmgr_message_active_limit = 20000 qmgr_message_recipient_limit = 20000 qmgr_message_recipient_minimum = 10 qmqpd_authorized_clients = qmqpd_error_delay = 1s qmqpd_timeout = 300s queue_directory = /var/spool/postfix queue_file_attribute_count_limit = 100 queue_minfree = 0 queue_run_delay = 1000s queue_service_name = qmgr rbl_reply_maps = readme_directory = /usr/share/doc/packages/postfix/README_FILES recipient_canonical_maps = recipient_delimiter = reject_code = 554 relay_clientcerts = relay_domains = $mydestination relay_domains_reject_code = 554 relay_recipient_maps = relay_transport = relay relayhost = relocated_maps = hash:/etc/postfix/relocated require_home_directory = no resolve_dequoted_address = yes rewrite_service_name = rewrite sample_directory = /usr/share/doc/packages/postfix/samples sender_canonical_maps = hash:/etc/postfix/sender_canonical sendmail_path = /usr/sbin/sendmail service_throttle_time = 60s setgid_group = maildrop show_user_unknown_table_name = yes showq_service_name = showq smtp_always_send_ehlo = yes smtp_bind_address = smtp_connect_timeout = 30s smtp_data_done_timeout = 600s smtp_data_init_timeout = 120s smtp_data_xfer_timeout = 180s smtp_destination_concurrency_limit = $default_destination_concurrency_limit smtp_destination_recipient_limit = $default_destination_recipient_limit smtp_enforce_tls = no smtp_helo_name = $myhostname smtp_helo_timeout = 300s smtp_line_length_limit = 990 smtp_mail_timeout = 300s smtp_never_send_ehlo = no smtp_pix_workaround_delay_time = 10s smtp_pix_workaround_threshold_time = 500s smtp_quit_timeout = 300s smtp_randomize_addresses = yes smtp_rcpt_timeout = 300s smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = smtp_skip_4xx_greeting = yes smtp_skip_5xx_greeting = yes smtp_skip_quit_response = yes smtp_starttls_timeout = 300s smtp_tls_CAfile = smtp_tls_CApath = smtp_tls_cert_file = smtp_tls_cipherlist = smtp_tls_dcert_file = smtp_tls_dkey_file = $smtp_tls_dcert_file smtp_tls_enforce_peername = yes smtp_tls_key_file = $smtp_tls_cert_file smtp_tls_loglevel = 0 smtp_tls_note_starttls_offer = no smtp_tls_per_site = smtp_tls_session_cache_database = smtp_tls_session_cache_timeout = 3600s smtp_use_tls = no smtpd_banner = $myhostname ESMTP $mail_name smtpd_client_restrictions = smtpd_data_restrictions = smtpd_delay_reject = yes smtpd_enforce_tls = no smtpd_error_sleep_time = 1s smtpd_etrn_restrictions = smtpd_expansion_filter = \t\40!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ smtpd_hard_error_limit = 20 smtpd_helo_required = no smtpd_helo_restrictions = smtpd_history_flush_threshold = 100 smtpd_junk_command_limit = 100 smtpd_noop_commands = smtpd_null_access_lookup_key = <> smtpd_recipient_limit = 1000 smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination smtpd_restriction_classes = smtpd_sasl_auth_enable = no smtpd_sasl_local_domain = smtpd_sasl_security_options = noanonymous smtpd_sender_login_maps = smtpd_sender_restrictions = hash:/etc/postfix/access smtpd_soft_error_limit = 10 smtpd_timeout = 300s smtpd_tls_CAfile = smtpd_tls_CApath = smtpd_tls_ask_ccert = no smtpd_tls_auth_only = no smtpd_tls_ccert_verifydepth = 5 smtpd_tls_cert_file = smtpd_tls_cipherlist = smtpd_tls_dcert_file = smtpd_tls_dh1024_param_file = smtpd_tls_dh512_param_file = smtpd_tls_dkey_file = $smtpd_tls_dcert_file smtpd_tls_key_file = $smtpd_tls_cert_file smtpd_tls_loglevel = 0 smtpd_tls_received_header = no smtpd_tls_req_ccert = no smtpd_tls_session_cache_database = smtpd_tls_session_cache_timeout = 3600s smtpd_tls_wrappermode = no smtpd_use_tls = no soft_bounce = no stale_lock_time = 500s strict_7bit_headers = no strict_8bitmime = no strict_8bitmime_body = no strict_mime_encoding_domain = no strict_rfc821_envelopes = no sun_mailtool_compatibility = no swap_bangpath = yes syslog_facility = mail syslog_name = postfix tls_daemon_random_bytes = 32 tls_daemon_random_source = tls_random_bytes = 32 tls_random_exchange_name = ${config_directory}/prng_exch tls_random_prng_update_period = 60s tls_random_reseed_period = 3600s tls_random_source = transport_maps = hash:/etc/postfix/transport transport_retry_time = 60s trigger_timeout = 10s undisclosed_recipients_header = To: undisclosed-recipients:; unknown_address_reject_code = 450 unknown_client_reject_code = 450 unknown_hostname_reject_code = 450 unknown_local_recipient_reject_code = 450 unknown_relay_recipient_reject_code = 550 unknown_virtual_alias_reject_code = 550 unknown_virtual_mailbox_reject_code = 550 verp_delimiter_filter = -=+ virtual_alias_domains = $virtual_alias_maps virtual_alias_maps = $virtual_maps virtual_gid_maps = virtual_mailbox_base = virtual_mailbox_domains = $virtual_mailbox_maps virtual_mailbox_limit = 51200000 virtual_mailbox_lock = fcntl virtual_mailbox_maps = virtual_minimum_uid = 100 virtual_transport = virtual virtual_uid_maps = -- ********************************* * Achim Schön * B&W Software GmbH * Weisse-Herz-Str 2a * D-91054 Erlangen * * fon ++49 (0) 9131 / 5 33 87-03 * fax ++49 (0) 9131 / 5 33 87-20 * *********************************