Hallo,

das Passwort hatte er schon geändert.

Wirf doch mal einen Blickpunkt auf smtpd_sender_login_maps.

Gruß Michael Reincke

On 21. August 2014 08:39:47 MESZ, Robert Schetterer rs@sys4.de wrote:

Am 21.08.2014 um 07:59 schrieb Matthias Schmidt:

...

client=248-60-132-95.pool.ukrtel.net[95.132.60.248],

sasl_method=LOGIN, sasl_username=xxxxxxx

erstmal aendere das Passwort !

Best Regards MfG Robert Schetterer

-- [*] sys4 AG

http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München

Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein _______________________________________________ postfix-users mailing list postfix-users@de.postfix.org http://de.postfix.org/cgi-bin/mailman/listinfo/postfix-users

Hallo,

Am 21.08.2014 um 16:11 schrieb Jakob-Matthias Böttger jakob.boettger@mailbox.org:

eine Möglichkeit die mir jetzt einfällt wäre folgendes.

Auf dem smtpd 25 die permit_sasl_authenticated rauszunehmen. Also in smtpd_recipient_restrictions = permit_tls_clientcerts, check_sender_access hash:/etc/postfix/whitelist, check_sender_access regexp:/etc/postfix/tag_as_originating.re, check_sender_access regexp:/etc/postfix/tag_as_foreign.re, reject_non_fqdn_hostname, reject_unknown_reverse_client_hostname, reject_unauth_destination, reject_rbl_client cbl.abuseat.org

das klappt leider nicht, da bekomm ich „Relay-Access denied“ als Antwort :(

Dann in der Master.cf Submission einrichten. Submission mittels -o permit_sasl_authenticated, und den Anderen

Submission port ist bereits eingestellt und alle meine Freunde versenden auch über 587. Webmail ist ebenfalls auf 587 eingestellt.

recipient_restrictions einstellen und dann mittels der xtables iptables extension und GeoIP auf dem Submission (tcp 587) z.B. die Ukraine (95.132.60.248 ist aus der Ukraine) aussperren. Es sei denn du hast Kunden oder Nutzer welche aus der Ukranine per Submission Mails versenden müssen. Weiterhin müssen natürlich alle Benutzer deines Mailsystems Ihre Clients so einrichten, dass sie über den Submission einliefern.

GeoIP hab ich mir mal angeschaut und die kostenlose Version ist auch auf dem Server installiert. Wie bau ich das in den Postfix wo ein?

Hier noch die Master.cf, eventiuell hab ich da was verkorkst: (postconf-n: is ganz unten im mail)

Dank und Gruss Matthias

# # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== # ==== Begin auto-generated section ======================================== # This section of the master.cf file is auto-generated by the Server Admin # Mail backend plugin whenever mails settings are modified. smtp inet n - n - - smtpd -o smtpd_sender_restrictions=permit_mynetworks,reject smtp unix - - n - - smtp submission inet n - n - - smtpd -o smtpd_tls_security_level=encrypt #encrypt # === End auto-generated section =========================================== #=====inserted 16.3.2012 # -o smtpd_enforce_tls=may -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o milter_macro_daemon_name=ORIGINATING #enabled 16.3.2012 #smtps inet n - n - - smtpd #original mit smtps funzt net also daher mit port .... 465 inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o milter_macro_daemon_name=ORIGINATING #======= finish edit #628 inet n - n - - qmqpd pickup fifo n - n 60 1 pickup cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - n - - showq error unix - - n - - error retry unix - - n - - error discard unix - - n - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache proxywrite unix - - n - 1 proxymap # # ==================================================================== # amavis set up # ==================================================================== # smtp-amavis unix - - n - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes -o max_use=20

192.168.2.10:25 inet n - n - - smtpd -o content_filter=smtp-amavis:[127.0.0.1]:10024 -o receive_override_options=no_address_mappings -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 # 127.0.0.1:10025 inet n - n - - smtpd -o content_filter= -o smtpd_delay_reject=no -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o smtpd_restriction_classes= -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters # 127.0.0.1:10027 inet n - n - - smtpd -o content_filter= -o smtpd_delay_reject=no -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o smtpd_restriction_classes= -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # Many of the following services use the Postfix pipe(8) delivery # agent. See the pipe(8) man page for information about ${recipient} # and other message envelope options. # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # #maildrop unix - n n - - pipe # flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient} # # ==================================================================== # # The Cyrus deliver program has changed incompatibly, multiple times. # #old-cyrus unix - n n - - pipe # flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} # # ==================================================================== # # Cyrus 2.1.5 (Amos Gouaux) # Also specify in main.cf: cyrus_destination_recipient_limit=1 # cyrus unix - n n - - pipe user=_cyrus argv=/usr/bin/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # #uucp unix - n n - - pipe # flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # ==================================================================== # # Other external delivery methods. # #ifmail unix - n n - - pipe # flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) # #bsmtp unix - n n - - pipe # flags=Fq. user=bsmtp argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient # #scalemail-backend unix - n n - 2 pipe # flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store # ${nexthop} ${user} ${extension} # mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} # # Dovecot deliver # dovecot unix - n n - 25 pipe flags=DRhu user=_dovecot:mail argv=/usr/libexec/dovecot/deliver -d ${user} # # Greylist policy server # policy unix - n n - - spawn user=nobody:mail argv=/usr/bin/perl /usr/libexec/postfix/greylist.pl

smtp-amavis unix - - y - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes

127.0.0.1:10025 inet n - y - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o smtpd_enforce_tls=no -o strict_rfc821_envelopes=yes -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o receive_override_options=no_header_body_checks

Am 21.08.2014 um 07:59 schrieb Matthias Schmidt:

...

Hallo, ich seh in meinem log viele viele mails, die von irgendwoher kommen und meist an französische yohoo Adressen gehen.

ich hab den Server via http://mxtoolbox.com/ getestet und das Tool sagt kein Open Relay.

Nachdem ich dem noch weiter in den Logs gewühlt habe, sieht es so aus als ob ein User-Account geknackt wurde. Das entsprechende Passwort hab ich gleich mal geändert.

amavis wirft entsprechend folgende Warnung aus: Open relay? Nonlocal recips but not originating Kann ich das irgendwie unterbinden, so dass das senden nur von lokalen Account aus erlaubt ist, trotz geknacktem login?

Hier meine postconf-n: 2bounce_notice_recipient = postmaster access_map_reject_code = 554 address_verify_default_transport = $default_transport address_verify_local_transport = $local_transport address_verify_map = address_verify_negative_cache = yes address_verify_negative_expire_time = 3d address_verify_negative_refresh_time = 3h address_verify_poll_count = 3 address_verify_poll_delay = 3s address_verify_positive_expire_time = 31d address_verify_positive_refresh_time = 7d address_verify_relay_transport = $relay_transport address_verify_relayhost = $relayhost address_verify_sender = $double_bounce_sender address_verify_sender_dependent_relayhost_maps = $sender_dependent_relayhost_maps address_verify_service_name = verify address_verify_transport_maps = $transport_maps address_verify_virtual_transport = $virtual_transport alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases,hash:/var/mailman/data/aliases allow_mail_to_commands = alias, forward allow_mail_to_files = alias, forward always_bcc = anvil_rate_time_unit = 60s anvil_status_update_time = 600s application_event_drain_time = 100s authorized_flush_users = static:anyone authorized_mailq_users = static:anyone authorized_submit_users = static:anyone backwards_bounce_logfile_compatibility = yes berkeley_db_create_buffer_size = 16777216 berkeley_db_read_buffer_size = 131072 best_mx_transport = body_checks_size_limit = 51200 bounce_notice_recipient = postmaster bounce_queue_lifetime = 5d bounce_service_name = bounce bounce_size_limit = 50000 bounce_template_file = canonical_classes = envelope_sender, envelope_recipient, header_sender, header_recipient check_for_od_forward = yes cleanup_service_name = cleanup command_directory = /usr/sbin command_execution_directory = command_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ command_time_limit = 1000s config_directory = /etc/postfix connection_cache_protocol_timeout = 5s connection_cache_service_name = scache connection_cache_status_update_time = 600s connection_cache_ttl_limit = 2s content_filter = smtp-amavis:[127.0.0.1]:10024 cyrus_sasl_config_path = daemon_directory = /usr/libexec/postfix daemon_timeout = 18000s data_directory = /var/lib/postfix debug_peer_level = 5 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_failed_cohort_limit = 1 default_destination_concurrency_limit = 20 default_destination_concurrency_negative_feedback = 1 default_destination_concurrency_positive_feedback = 1 default_destination_rate_delay = 0s 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 = 20000 default_recipient_refill_delay = 5s default_recipient_refill_limit = 100 default_transport = smtp default_verp_delimiters = += defer_code = 450 defer_service_name = defer defer_transports = delay_logging_resolution_limit = 2 delay_notice_recipient = postmaster delay_warning_time = 0h deliver_lock_attempts = 20 deliver_lock_delay = 1s destination_concurrency_feedback_debug = no detect_8bit_encoding_header = yes dont_remove = 0 double_bounce_sender = double-bounce duplicate_filter_limit = 1000 empty_address_recipient = MAILER-DAEMON empty_address_relayhost_maps_lookup_key = <> enable_original_recipient = yes enable_server_options = yes error_notice_recipient = postmaster error_service_name = error execution_directory_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ export_environment = TZ MAIL_CONFIG LANG fallback_transport = fallback_transport_maps = 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 frozen_delivered_to = yes hash_queue_depth = 1 hash_queue_names = deferred,defer header_address_token_limit = 10240 header_checks = pcre:/etc/postfix/custom_header_checks header_size_limit = 102400 hopcount_limit = 50 html_directory = no import_environment = MAIL_CONFIG MAIL_DEBUG MAIL_LOGTAG TZ XAUTHORITY DISPLAY LANG=C in_flow_delay = 1s inet_interfaces = all inet_protocols = ipv4 initial_destination_concurrency = 5 internal_mail_filter_classes = invalid_hostname_reject_code = 501 ipc_idle = 5s ipc_timeout = 3600s ipc_ttl = 1000s line_length_limit = 2048 lmtp_bind_address = lmtp_bind_address6 = lmtp_body_checks = lmtp_cname_overrides_servername = no lmtp_connect_timeout = 0s lmtp_connection_cache_destinations = lmtp_connection_cache_on_demand = yes lmtp_connection_cache_time_limit = 2s lmtp_connection_reuse_time_limit = 300s lmtp_data_done_timeout = 600s lmtp_data_init_timeout = 120s lmtp_data_xfer_timeout = 180s lmtp_defer_if_no_mx_address_found = no lmtp_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit lmtp_destination_concurrency_limit = $default_destination_concurrency_limit lmtp_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback lmtp_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback lmtp_destination_rate_delay = $default_destination_rate_delay lmtp_destination_recipient_limit = $default_destination_recipient_limit lmtp_discard_lhlo_keyword_address_maps = lmtp_discard_lhlo_keywords = lmtp_enforce_tls = no lmtp_generic_maps = lmtp_header_checks = lmtp_host_lookup = dns lmtp_initial_destination_concurrency = $initial_destination_concurrency lmtp_lhlo_name = $myhostname lmtp_lhlo_timeout = 300s lmtp_line_length_limit = 990 lmtp_mail_timeout = 300s lmtp_mime_header_checks = lmtp_mx_address_limit = 5 lmtp_mx_session_limit = 2 lmtp_nested_header_checks = lmtp_pix_workaround_delay_time = 10s lmtp_pix_workaround_maps = lmtp_pix_workaround_threshold_time = 500s lmtp_pix_workarounds = disable_esmtp,delay_dotcrlf lmtp_quit_timeout = 300s lmtp_quote_rfc821_envelope = yes lmtp_randomize_addresses = yes lmtp_rcpt_timeout = 300s lmtp_rset_timeout = 20s lmtp_sasl_auth_cache_name = lmtp_sasl_auth_cache_time = 90d lmtp_sasl_auth_soft_bounce = yes lmtp_sasl_mechanism_filter = lmtp_sasl_path = lmtp_sasl_security_options = noplaintext, noanonymous lmtp_sasl_tls_security_options = $lmtp_sasl_security_options lmtp_sasl_tls_verified_security_options = $lmtp_sasl_tls_security_options lmtp_sasl_type = cyrus lmtp_send_xforward_command = no lmtp_sender_dependent_authentication = no lmtp_skip_5xx_greeting = yes lmtp_starttls_timeout = 300s lmtp_tcp_port = 24 lmtp_tls_CAfile = lmtp_tls_CApath = lmtp_tls_cert_file = lmtp_tls_dcert_file = lmtp_tls_dkey_file = $lmtp_tls_dcert_file lmtp_tls_enforce_peername = yes lmtp_tls_exclude_ciphers = lmtp_tls_fingerprint_cert_match = lmtp_tls_fingerprint_digest = md5 lmtp_tls_key_file = $lmtp_tls_cert_file lmtp_tls_loglevel = 0 lmtp_tls_mandatory_ciphers = medium lmtp_tls_mandatory_exclude_ciphers = lmtp_tls_mandatory_protocols = SSLv3, TLSv1 lmtp_tls_note_starttls_offer = no lmtp_tls_per_site = lmtp_tls_policy_maps = lmtp_tls_scert_verifydepth = 9 lmtp_tls_secure_cert_match = nexthop lmtp_tls_security_level = lmtp_tls_session_cache_database = lmtp_tls_session_cache_timeout = 3600s lmtp_tls_verify_cert_match = hostname lmtp_use_tls = no lmtp_xforward_timeout = 300s local_command_shell = local_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit local_destination_concurrency_limit = 2 local_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback local_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback local_destination_rate_delay = $default_destination_rate_delay local_destination_recipient_limit = 1 local_header_rewrite_clients = permit_inet_interfaces local_initial_destination_concurrency = $initial_destination_concurrency local_recipient_maps = proxy:unix:passwd.byname $alias_maps local_transport = local:$myhostname luser_relay = mail_name = Postfix mail_owner = _postfix mail_release_date = 20080902 mail_spool_directory = /var/mail mail_version = 2.5.5 mailbox_command = mailbox_command_maps = mailbox_delivery_lock = flock, dotlock mailbox_size_limit = 0 mailbox_transport = dovecot mailbox_transport_maps = 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 = max_idle = 100s max_use = 100 maximal_backoff_time = 4000s maximal_queue_lifetime = 5d message_reject_characters = message_size_limit = 41943040 message_strip_characters = milter_command_timeout = 30s milter_connect_macros = j {daemon_name} v milter_connect_timeout = 30s milter_content_timeout = 300s milter_data_macros = i milter_default_action = tempfail milter_end_of_data_macros = i milter_end_of_header_macros = i milter_helo_macros = {tls_version} {cipher} {cipher_bits} {cert_subject} {cert_issuer} milter_macro_daemon_name = $myhostname milter_macro_v = $mail_name $mail_version milter_mail_macros = i {auth_type} {auth_authen} {auth_author} {mail_addr} milter_protocol = 2 milter_rcpt_macros = i {rcpt_addr} milter_unknown_command_macros = mime_boundary_length_limit = 2048 mime_header_checks = $header_checks mime_nesting_limit = 100 minimal_backoff_time = 300s multi_recipient_bounce_reject_code = 550 mydestination = $myhostname, localhost.$mydomain, localhost, mail.$mydomain, liste.$mydomain, $mydomain mydomain = admilon.net mydomain_fallback = localhost myhostname = mcgregor.admilon.net mynetworks = 127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 mynetworks_style = host myorigin = $myhostname nested_header_checks = $header_checks newaliases_path = /usr/bin/newaliases non_fqdn_reject_code = 504 non_smtpd_milters = notify_classes = resource, software owner_request_special = no 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 plaintext_reject_code = 450 prepend_delivered_header = command, file, forward process_id_directory = pid propagate_unmatched_extensions = canonical, virtual proxy_interfaces = 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 $sender_bcc_maps $recipient_bcc_maps $smtp_generic_maps $lmtp_generic_maps proxy_write_maps = $smtp_sasl_auth_cache_name $lmtp_sasl_auth_cache_name 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_client_port_logging = no qmqpd_error_delay = 1s qmqpd_timeout = 300s queue_directory = /private/var/spool/postfix queue_file_attribute_count_limit = 100 queue_minfree = 0 queue_run_delay = 300s queue_service_name = qmgr rbl_reply_maps = readme_directory = /usr/share/doc/postfix receive_override_options = recipient_bcc_maps = recipient_canonical_classes = envelope_recipient, header_recipient recipient_delimiter = + reject_code = 554 relay_clientcerts = relay_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit relay_destination_concurrency_limit = $default_destination_concurrency_limit relay_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback relay_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback relay_destination_rate_delay = $default_destination_rate_delay relay_destination_recipient_limit = $default_destination_recipient_limit relay_domains = $mydestination relay_domains_reject_code = 554 relay_initial_destination_concurrency = $initial_destination_concurrency relay_recipient_maps = relay_transport = relay relayhost = relocated_maps = remote_header_rewrite_domain = resolve_null_domain = no resolve_numeric_domain = no rewrite_service_name = rewrite sample_directory = /usr/share/doc/postfix/examples send_cyrus_sasl_authzid = no sender_bcc_maps = sender_canonical_classes = envelope_sender, header_sender sender_canonical_maps = sender_dependent_relayhost_maps = sendmail_path = /usr/sbin/sendmail service_throttle_time = 60s setgid_group = _postdrop showq_service_name = showq smtp_bind_address6 = smtp_body_checks = smtp_cname_overrides_servername = no smtp_connect_timeout = 30s smtp_connection_cache_destinations = smtp_connection_cache_on_demand = yes smtp_connection_cache_time_limit = 2s smtp_connection_reuse_time_limit = 300s smtp_data_done_timeout = 600s smtp_data_init_timeout = 120s smtp_data_xfer_timeout = 180s smtp_defer_if_no_mx_address_found = no smtp_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit smtp_destination_concurrency_limit = $default_destination_concurrency_limit smtp_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback smtp_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback smtp_destination_rate_delay = $default_destination_rate_delay smtp_destination_recipient_limit = $default_destination_recipient_limit smtp_discard_ehlo_keyword_address_maps = smtp_discard_ehlo_keywords = smtp_fallback_relay = $fallback_relay smtp_generic_maps = smtp_header_checks = smtp_helo_name = $myhostname smtp_helo_timeout = 300s smtp_host_lookup = dns smtp_initial_destination_concurrency = $initial_destination_concurrency smtp_line_length_limit = 990 smtp_mail_timeout = 300s smtp_mime_header_checks = smtp_mx_address_limit = 5 smtp_mx_session_limit = 2 smtp_nested_header_checks = smtp_pix_workaround_delay_time = 10s smtp_pix_workaround_maps = smtp_pix_workaround_threshold_time = 500s smtp_pix_workarounds = disable_esmtp,delay_dotcrlf smtp_quit_timeout = 300s smtp_quote_rfc821_envelope = yes smtp_rcpt_timeout = 300s smtp_rset_timeout = 20s smtp_sasl_auth_cache_name = smtp_sasl_auth_cache_time = 90d smtp_sasl_auth_soft_bounce = yes smtp_sasl_mechanism_filter = smtp_sasl_password_maps = smtp_sasl_path = smtp_sasl_security_options = noplaintext, noanonymous smtp_sasl_tls_security_options = $smtp_sasl_security_options smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options smtp_sasl_type = cyrus smtp_send_xforward_command = no smtp_sender_dependent_authentication = no smtp_starttls_timeout = 300s smtp_tls_CAfile = smtp_tls_CApath = smtp_tls_dcert_file = smtp_tls_dkey_file = $smtp_tls_dcert_file smtp_tls_enforce_peername = yes smtp_tls_exclude_ciphers = smtp_tls_fingerprint_cert_match = smtp_tls_fingerprint_digest = md5 smtp_tls_key_file = $smtp_tls_cert_file smtp_tls_loglevel = 0 smtp_tls_mandatory_ciphers = high smtp_tls_mandatory_exclude_ciphers = smtp_tls_mandatory_protocols = SSLv3, TLSv1 smtp_tls_note_starttls_offer = yes smtp_tls_per_site = smtp_tls_policy_maps = smtp_tls_scert_verifydepth = 9 smtp_tls_secure_cert_match = nexthop, dot-nexthop smtp_tls_session_cache_database = smtp_tls_session_cache_timeout = 3600s smtp_tls_verify_cert_match = hostname smtp_use_tls = no smtp_xforward_timeout = 300s smtpd_authorized_verp_clients = $authorized_verp_clients smtpd_authorized_xclient_hosts = smtpd_authorized_xforward_hosts = smtpd_banner = $myhostname ESMTP $mail_name smtpd_client_connection_count_limit = 50 smtpd_client_connection_rate_limit = 0 smtpd_client_event_limit_exceptions = ${smtpd_client_connection_limit_exceptions:$mynetworks} smtpd_client_message_rate_limit = 0 smtpd_client_new_tls_session_rate_limit = 10 smtpd_client_port_logging = no smtpd_client_recipient_rate_limit = 0 smtpd_client_restrictions = smtpd_data_restrictions = reject_unauth_pipelining smtpd_delay_open_until_valid_rcpt = yes smtpd_discard_ehlo_keyword_address_maps = smtpd_discard_ehlo_keywords = smtpd_end_of_data_restrictions = smtpd_enforce_tls = no smtpd_error_sleep_time = 1s smtpd_etrn_restrictions = smtpd_expansion_filter = \t\40!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ smtpd_forbidden_commands = CONNECT GET POST smtpd_hard_error_limit = 20 smtpd_helo_required = yes smtpd_helo_restrictions = reject_invalid_helo_hostname reject_non_fqdn_helo_hostname smtpd_history_flush_threshold = 100 smtpd_junk_command_limit = 100 smtpd_milters = smtpd_noop_commands = smtpd_null_access_lookup_key = <> smtpd_peername_lookup = yes smtpd_policy_service_max_idle = 300s smtpd_policy_service_max_ttl = 1000s smtpd_policy_service_timeout = 100s smtpd_proxy_ehlo = $myhostname smtpd_proxy_filter = smtpd_proxy_timeout = 100s smtpd_pw_server_security_options = login,gssapi,cram-md5 smtpd_recipient_limit = 1000 smtpd_recipient_overshoot_limit = 1000 smtpd_recipient_restrictions = permit_sasl_authenticated permit_tls_clientcerts check_sender_access hash:/etc/postfix/whitelist check_sender_access regexp:/etc/postfix/tag_as_originating.re check_sender_access regexp:/etc/postfix/tag_as_foreign.re reject_non_fqdn_hostname reject_unknown_reverse_client_hostname reject_unauth_destination reject_rbl_client cbl.abuseat.org smtpd_reject_unlisted_recipient = yes smtpd_reject_unlisted_sender = no smtpd_restriction_classes = smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = no smtpd_sasl_exceptions_networks = smtpd_sasl_path = smtpd smtpd_sasl_security_options = noanonymous smtpd_sasl_tls_security_options = $smtpd_sasl_security_options smtpd_sasl_type = cyrus smtpd_sender_login_maps = smtpd_sender_restrictions = smtpd_soft_error_limit = 10 smtpd_starttls_timeout = 300s smtpd_timeout = 300s smtpd_tls_CAfile = /etc/certificates/mcgregor.admilon.net.31B2A8BE25A7A4BCEA17E4A2982578C3AC6E5419.chain.pem smtpd_tls_CApath = smtpd_tls_always_issue_session_ids = yes smtpd_tls_ask_ccert = no smtpd_tls_auth_only = no smtpd_tls_ccert_verifydepth = 9 smtpd_tls_cert_file = /etc/certificates/mcgregor.admilon.net.31B2A8BE25A7A4BCEA17E4A2982578C3AC6E5419.cert.pem smtpd_tls_dcert_file = smtpd_tls_dh1024_param_file = smtpd_tls_dh512_param_file = smtpd_tls_dkey_file = $smtpd_tls_dcert_file smtpd_tls_exclude_ciphers = smtpd_tls_fingerprint_digest = md5 smtpd_tls_key_file = /etc/certificates/mcgregor.admilon.net.31B2A8BE25A7A4BCEA17E4A2982578C3AC6E5419.key.pem smtpd_tls_loglevel = 0 smtpd_tls_mandatory_ciphers = medium smtpd_tls_mandatory_exclude_ciphers = smtpd_tls_mandatory_protocols = SSLv3, TLSv1 smtpd_tls_received_header = no smtpd_tls_req_ccert = no smtpd_tls_security_level = may smtpd_tls_session_cache_database = smtpd_tls_session_cache_timeout = 3600s smtpd_tls_wrappermode = no smtpd_use_pw_server = yes smtpd_use_tls = yes stale_lock_time = 500s stress = strict_mailbox_ownership = yes syslog_facility = mail syslog_name = postfix tls_daemon_random_bytes = 32 tls_export_cipherlist = ALL:+RC4:@STRENGTH tls_high_cipherlist = ALL:!EXPORT:!LOW:!MEDIUM:+RC4:@STRENGTH tls_low_cipherlist = ALL:!EXPORT:+RC4:@STRENGTH tls_medium_cipherlist = ALL:!EXPORT:!LOW:+RC4:@STRENGTH tls_null_cipherlist = eNULL:!aNULL tls_random_bytes = 32 tls_random_exchange_name = ${data_directory}/prng_exch tls_random_prng_update_period = 3600s tls_random_reseed_period = 3600s tls_random_source = dev:/dev/urandom trace_service_name = trace transport_maps = 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 = 550 unknown_relay_recipient_reject_code = 550 unknown_virtual_alias_reject_code = 550 unknown_virtual_mailbox_reject_code = 550 unverified_recipient_reject_code = 450 unverified_sender_reject_code = 450 use_getpwnam_ext = yes use_od_delivery_path = no verp_delimiter_filter = -=+ virtual_alias_domains = hash:/etc/postfix/virtual_domains virtual_alias_expansion_limit = 1000 virtual_alias_maps = hash:/etc/postfix/virtual hash:/private/var/mailman/data/virtual-mailman virtual_alias_recursion_limit = 1000 virtual_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit virtual_destination_concurrency_limit = $default_destination_concurrency_limit virtual_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback virtual_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback virtual_destination_rate_delay = $default_destination_rate_delay virtual_destination_recipient_limit = $default_destination_recipient_limit virtual_gid_maps = virtual_initial_destination_concurrency = $initial_destination_concurrency virtual_mailbox_base = virtual_mailbox_domains = hash:/etc/postfix/virtual_domains_dummy virtual_mailbox_limit = 51200000 virtual_mailbox_lock = fcntl, dotlock virtual_mailbox_maps = virtual_minimum_uid = 100 virtual_transport = virtual virtual_uid_maps =

Dank und Gruss Matthias

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Wäre es nicht einfacher, das mit Access Policy Delegation zu erledigen und z.B. in main.cf unter "smtpd_recipient_restrictions" check_policy_service xxx einzutragen? So ein policy server ist recht einfach zu implementieren. Ausserdem könnte man eine Verifizierung einbauen, ob die "From:" Adresse überhaupt dem Benutzer zugeordnet ist. Desweiteren könnte man auch die Anzahl der Empfänger/Zeiteinheit in Abhängigkeit von der Herkunft (IP-Bereich) reglementieren.

Am 21.08.2014 um 18:12 schrieb Robert Schetterer rs@sys4.de:

Am 21.08.2014 um 10:27 schrieb Peter Heitzer:

...

Wäre es nicht einfacher, das mit Access Policy Delegation zu erledigen und z.B. in main.cf unter "smtpd_recipient_restrictions" check_policy_service xxx einzutragen? So ein policy server ist recht einfach zu implementieren. Ausserdem könnte man eine Verifizierung einbauen, ob die "From:" Adresse überhaupt dem Benutzer zugeordnet ist.

...

Desweiteren könnte man auch die Anzahl der Empfänger/Zeiteinheit in Abhängigkeit von der Herkunft (IP-Bereich) reglementieren.

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das hier koennte helfen

http://milter-greylist.wikidot.com/geoip

implementieren nur fuer Submission ohne greylist, nur geoip ( wenn das geht )

totally untested, iptables geoip sollte auch funktionieren , ich bitte aber zu bedenken das Kunden auch mal beruflich und/oder privat im Urlaub im Ausland sein konnten, diese Loesung ist also sicher nicht in jedem Setup zu gebrauchen, grundsaetzlich wuerde ich eher darauf setzen "Anomalien" aus den Logs erkennen zu koennen und daraus einen Alarm zu triggern und dann daraus gegebenfalls eine „Auto Action“ loszutreten

Das mit dem Submission port funktioniert jetzt wie vorgeschlagen. Danke :-)

wie stell ich denn sowas an, Anomalien im Log zu erkennen um mir dann z.Bsp. eine Alarm-Mail zu schicken. Ich nehm mal an mit php und regex oder vergleichbares. Das ist nun leider nicht so ganz mein Gebiet :(

Danke jedenfalls für die Hilfe hier auf der Liste Grüsse Matthias

mit dem milter-greylist ist sicherlich eine Option. In diesem Fall müssten die Restrictions dann aber so konfiguriert werden, dass auch erfolgreiche SASL logins durch den milter laufen, was meiner Meinung nach Ressourcen verschwendung ist. Sollte sich einer der User in der Ukraine aufhalten, könnte man noch das Webmail oder ein VPN nutzen. Aber es stimmt, das ein GeoIP basiertes SASL filtering problem Potential mit sich bringt. Gerade in einem großen Setup. Je nach Setup könnte man noch reject_unlisted_sender in die smtpd_sender_restrictions aufnehmen. Damit würde man dann die Senderadressen gegen die im System vorhandenen Mailadressen verifizieren. Aber ACHTUNG das geht nur bei richtig konfigurierten Lookups der Adressen. Z.B. über die Virtual umgebung.

VG Jakob

Am 21.08.2014 um 11:48 schrieb Robert Schetterer:

Am 21.08.2014 um 11:26 schrieb Matthias Schmidt:

...

Am 21.08.2014 um 18:12 schrieb Robert Schetterer rs@sys4.de:

...

Am 21.08.2014 um 10:27 schrieb Peter Heitzer:

...

Wäre es nicht einfacher, das mit Access Policy Delegation zu erledigen und z.B. in main.cf unter "smtpd_recipient_restrictions" check_policy_service xxx einzutragen? So ein policy server ist recht einfach zu implementieren. Ausserdem könnte man eine Verifizierung einbauen, ob die "From:" Adresse überhaupt dem Benutzer zugeordnet ist.

...

Desweiteren könnte man auch die Anzahl der Empfänger/Zeiteinheit in Abhängigkeit von der Herkunft (IP-Bereich) reglementieren.

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das hier koennte helfen

http://milter-greylist.wikidot.com/geoip

implementieren nur fuer Submission ohne greylist, nur geoip ( wenn das geht )

totally untested, iptables geoip sollte auch funktionieren , ich bitte aber zu bedenken das Kunden auch mal beruflich und/oder privat im Urlaub im Ausland sein konnten, diese Loesung ist also sicher nicht in jedem Setup zu gebrauchen, grundsaetzlich wuerde ich eher darauf setzen "Anomalien" aus den Logs erkennen zu koennen und daraus einen Alarm zu triggern und dann daraus gegebenfalls eine „Auto Action“ loszutreten

Das mit dem Submission port funktioniert jetzt wie vorgeschlagen. Danke :-)

wie stell ich denn sowas an, Anomalien im Log zu erkennen um mir dann z.Bsp. eine Alarm-Mail zu schicken. Ich nehm mal an mit php und regex oder vergleichbares. Das ist nun leider nicht so ganz mein Gebiet :(

das ist nicht ganz trivial, und meines wissens gibt es dafuer auch nichts "out of the box"

vorfiltern im syslog ist schon mal nicht schlecht zb nach sasl

nur so als Ideengeber

https://sys4.de/de/blog/2013/04/17/monitoren-und-alarmierung-von-brute-force...

wenn man geschickt ist kann man die filterung auch gleich von zb rsyslog erledigen lassen und auch von dort aus auch gleich eine action ausfuehren lassen zb passwort aendern oder account deaktivieren usw

auch nur fuer Ideen Sammlung

https://sys4.de/de/blog/2012/12/28/botnets-mit-rsyslog-und-iptables-recent-m...

https://sys4.de/de/blog/2014/03/27/fighting-smtp-auth-brute-force-attacks/

ich hab mich schon an sowas versucht bin aber aus Zeitmangel noch nicht sehr weit, technisch geht da auf jeden Fall einiges , nur "einfach" ist es eben nicht

Einige Intruder Detection Systeme sollten auch aehnliche Moeglichkeiten haben

...

Danke jedenfalls für die Hilfe hier auf der Liste Grüsse Matthias

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Best Regards MfG Robert Schetterer

Am 21.08.2014 um 22:54 schrieb Florian Pritz bluewind@xinu.at:

On 21.08.2014 11:26, Matthias Schmidt wrote:

...

wie stell ich denn sowas an, Anomalien im Log zu erkennen um mir dann z.Bsp. eine Alarm-Mail zu schicken.

http://www.inversepath.com/tenshi.html

Tenshi braucht anfangs etwas viel Liebe (erstmal alles was uninteressant ist rausfiltern und dabei nach Möglichkeit sehr genaue Filter bauen die wirklich nur das uninteressant treffen), dann ist es aber sehr praktisch.

Außerdem willst du reject_authenticated_sender_login_mismatch in deine restrictions einbauen damit jeder user nur noch mit seinen Adressen schicken darf. Das verlässt sich allerdings auf ein ordentlich gesetztes smtpd_sender_login_maps.

Danke, werd ich einbauen, wenn der mailman wieder geht (s.u.) ;-)

Dann willst du noch *alle* Mails (auch die von deinen Usern und auch lokal erstellte (pickup)) durch einen Spamfilter schicken. Das machst du wenn ich das richtig sehe für submission momentan nicht. Einfach überall den content_filter setzen.

mit einer dieser Einstellungen hab ich jetzt meinen mailman ausgesperrt …

Irgendeine Idee?

in der main.cf steht zwar das hier: virtual_alias_maps = hash:/etc/postfix/virtual hash:/private/var/mailman/data/virtual-mailman

aber das wird nun wohl ignoriert mit: Aug 24 18:10:11 mcgregor postfix/smtpd[41880]: 84E8B34E830: reject: RCPT from localhost[127.0.0.1]: 554 5.7.1 jeba501@yahoo.de: Relay access denied; from=dinj-bounces@dinj.de to=jeba501@yahoo.de proto=ESMTP helo=<mcgregor.admilon.net>

es kann nicht an virtual domain liegen, da die anderen virtuellen domains mit persönlichen Adressen funktionieren. Die Login-Namen stimmen auch nicht mit den e-mail-addressen überein, werden aber in virtual gemappt, anscheinend wird nur die virtual-mailman ignoriert.

Danke und Gruss Matthias

die aktuelle master.cf die, die den mailman irgendwo aussperrt grummel Kommentare hab ich weitestgehend rausgeworfen.

smtp inet n - n - - smtpd -o smtpd_sender_restrictions=permit_mynetworks,reject smtp unix - - n - - smtp

submission inet n - n - 25 smtpd -o content_filter=smtp-amavis:[127.0.0.1]:10024 -o smtpd_tls_security_level=encrypt # -o smtpd_enforce_tls=may -o smtpd_sasl_auth_enable=yes -o smtpd_recipient_restrictions=reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unknown_sender_domain,permit_sasl_authenticated,reject -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_proxy_filter= -o milter_macro_daemon_name=ORIGINATING

#original mit smtps funzt net also daher mit port .... 465 inet n - n - - smtpd -o content_filter=smtp-amavis:[127.0.0.1]:10024 -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes -o smtpd_recipient_restrictions=reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unknown_sender_domain,permit_sasl_authenticated,reject -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o milter_macro_daemon_name=ORIGINATING

#628 inet n - n - - qmqpd pickup fifo n - n 60 1 pickup -o content_filter=smtp-amavis:[127.0.0.1]:10024 cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - n - - showq error unix - - n - - error retry unix - - n - - error discard unix - - n - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache proxywrite unix - - n - 1 proxymap # # ==================================================================== # amavis set up # ==================================================================== # smtp-amavis unix - - n - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes -o max_use=20

192.168.2.10:25 inet n - n - - smtpd -o content_filter=smtp-amavis:[127.0.0.1]:10024 -o receive_override_options=no_address_mappings -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 # 127.0.0.1:10025 inet n - n - - smtpd -o content_filter= -o smtpd_delay_reject=no -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o smtpd_restriction_classes= -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters # 127.0.0.1:10027 inet n - n - - smtpd -o content_filter= -o smtpd_delay_reject=no -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o smtpd_restriction_classes= -o mynetworks=127.0.0.0/8,192.168.2.0/24,192.168.1.0/24 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters

cyrus unix - n n - - pipe user=_cyrus argv=/usr/bin/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}

mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user}

dovecot unix - n n - 25 pipe flags=DRhu user=_dovecot:mail argv=/usr/libexec/dovecot/deliver -d ${user} # # Greylist policy server # policy unix - n n - - spawn user=nobody:mail argv=/usr/bin/perl /usr/libexec/postfix/greylist.pl smtp-amavis unix - - y - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes 127.0.0.1:10025 inet n - y - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o smtpd_enforce_tls=no -o strict_rfc821_envelopes=yes -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o receive_override_options=no_header_body_checks