######################################################################## # Mail eXchange (MX) configuration # # {{ ansible_managed }} # Do NOT edit this file directly! smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no readme_directory = no compatibility_level = 2 smtputf8_enable = no delay_warning_time = 4h maximal_queue_lifetime = 5d myorigin = /etc/mailname myhostname = mx{{ mxno | default('') }}.$mydomain mydomain = fripost.org append_dot_mydomain = no mynetworks_style = host queue_directory = /var/spool/postfix-{{ postfix_instance[inst].name }} data_directory = /var/lib/postfix-{{ postfix_instance[inst].name }} multi_instance_group = {{ postfix_instance[inst].group | default('') }} multi_instance_name = postfix-{{ postfix_instance[inst].name }} multi_instance_enable = yes # No local delivery mydestination = local_transport = error:5.1.1 Mailbox unavailable alias_maps = alias_database = local_recipient_maps = message_size_limit = 67108864 recipient_delimiter = + # Forward everything to our internal outgoing proxy relayhost = [{{ postfix_instance.out.addr | ipaddr }}]:{{ postfix_instance.out.port }} relay_domains = # Virtual transport # We use a dedicated "virtual" domain to decongestion potential # bottlenecks on trivial_rewrite(8) due to slow LDAP lookups in # tranport_maps. virtual_transport = error:5.1.1 Virtual transport unavailable virtual_alias_domains = !lmdb:$config_directory/virtual/transport ldap:$config_directory/virtual/domains.cf virtual_alias_maps = pcre:$config_directory/virtual/reserved_alias.pcre # unless there is a matching user/alias/list... ldap:$config_directory/virtual/mailbox.cf ldap:$config_directory/virtual/alias.cf ldap:$config_directory/virtual/list.cf # ...we resolve alias domains and catch alls ldap:$config_directory/virtual/alias_domains.cf ldap:$config_directory/virtual/catchall.cf transport_maps = lmdb:$config_directory/virtual/transport # Don't rewrite remote headers local_header_rewrite_clients = # Pass the client information along to the content filter smtp_send_xforward_command = yes # Avoid splitting the envelope and scanning messages multiple times smtp_destination_recipient_limit = 1000 reserved-alias_destination_recipient_limit = 1 # Tolerate occasional high latency smtp_data_done_timeout = 1200s smtp_tls_security_level = none smtpd_tls_security_level = may smtpd_tls_ciphers = medium smtpd_tls_protocols = !SSLv2, !SSLv3 smtpd_tls_cert_file = $config_directory/ssl/mx.fripost.org.pem smtpd_tls_key_file = $config_directory/ssl/mx.fripost.org.key smtpd_tls_dh1024_param_file = /etc/ssl/dhparams.pem smtpd_tls_CApath = /etc/ssl/certs/ smtpd_tls_session_cache_database= smtpd_tls_received_header = yes # http://en.linuxreviews.org/HOWTO_Stop_spam_using_Postfix # http://www.howtoforge.com/block_spam_at_mta_level_postfix strict_rfc821_envelopes = yes smtpd_delay_reject = yes disable_vrfy_command = yes postscreen_access_list = permit_mynetworks cidr:$config_directory/access-list.cidr postscreen_dnsbl_whitelist_threshold = -1 postscreen_cache_map = lmdb:$data_directory/postscreen_cache postscreen_blacklist_action = drop postscreen_dnsbl_threshold = 8 postscreen_dnsbl_action = enforce postscreen_dnsbl_sites = zen.spamhaus.org=127.0.0.[10;11]*8 zen.spamhaus.org=127.0.0.[4..7]*6 zen.spamhaus.org=127.0.0.3*4 zen.spamhaus.org=127.0.0.2*3 #swl.spamhaus.org*-4 b.barracudacentral.org=127.0.0.2*7 bl.mailspike.net=127.0.0.2*5 bl.mailspike.net=127.0.0.[10..12]*4 wl.mailspike.net=127.0.0.[18..20]*-2 bl.spameatingmonkey.net=127.0.0.2*4 bl.spamcop.net=127.0.0.2*2 dnsbl.sorbs.net=127.0.0.10*8 dnsbl.sorbs.net=127.0.0.5*6 dnsbl.sorbs.net=127.0.0.7*3 dnsbl.sorbs.net=127.0.0.8*2 dnsbl.sorbs.net=127.0.0.6*2 dnsbl.sorbs.net=127.0.0.9*2 list.dnswl.org=127.0.[0..255].0*-2 list.dnswl.org=127.0.[0..255].1*-3 list.dnswl.org=127.0.[0..255].[2..3]*-4 postscreen_greet_action = enforce postscreen_whitelist_interfaces = static:all smtpd_client_restrictions = permit_mynetworks smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks reject_non_fqdn_helo_hostname reject_invalid_helo_hostname smtpd_sender_restrictions = reject_non_fqdn_sender reject_unknown_sender_domain smtpd_relay_restrictions = reject_non_fqdn_recipient permit_mynetworks reject_unauth_destination reject_unlisted_recipient smtpd_recipient_restrictions = check_client_access cidr:$config_directory/access-list.cidr check_recipient_access ldap:$config_directory/reject-unknown-client-hostname.cf reject_rhsbl_reverse_client dbl.spamhaus.org=127.0.1.[2..99] reject_rhsbl_sender dbl.spamhaus.org=127.0.1.[2..99] # defer if "abused legit": DBL return code in the 127.0.1.100+ range defer_if_reject reject_rhsbl_reverse_client dbl.spamhaus.org=127.0.1.[100..254] reject_rhsbl_sender dbl.spamhaus.org=127.0.1.[100..254] smtpd_data_restrictions = reject_unauth_pipelining # vim: set filetype=pfmain :