######################################################################## # MX configuration # # {{ ansible_managed }} # Do NOT edit this file directly! smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no readme_directory = no mail_owner = postfix delay_warning_time = 4h maximal_queue_lifetime = 5d myorigin = /etc/mailname myhostname = mx{{ mxno | default('') }}.$mydomain mydomain = fripost.org append_dot_mydomain = no # Turn off all TCP/IP listener ports except that necessary for the mail # exchange. master_service_disable = !smtp.inet inet 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 # This server is a Mail eXchange mynetworks_style = host inet_interfaces = all # 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 {% if 'out' in group_names %} relayhost = [127.0.0.1]:{{ postfix_instance.out.port }} {% else %} relayhost = [outgoing.fripost.org]:{{ postfix_instance.out.port }} {% endif %} 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 = !cdb:$config_directory/virtual/transport ldap:$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 = cdb:$config_directory/virtual/transport # Don't rewrite remote headers local_header_rewrite_clients = # Pass the client information along to the content filter smtp_send_xforward_command = yes # Avoid splitting the envelope and scanning messages multiple times smtp_destination_recipient_limit = 1000 reserved-alias_destination_recipient_limit = 1 # Tolerate occasional high latency smtp_data_done_timeout = 1200s {% if 'out' in group_names %} smtp_tls_security_level = none smtp_bind_address = 127.0.0.1 {% else %} smtp_tls_security_level = encrypt smtp_tls_cert_file = /etc/postfix/ssl/{{ ansible_fqdn }}.pem smtp_tls_key_file = /etc/postfix/ssl/{{ ansible_fqdn }}.key smtp_tls_session_cache_database = btree:$data_directory/smtp_tls_session_cache smtp_tls_policy_maps = cdb:/etc/postfix/tls_policy smtp_tls_fingerprint_digest = sha256 {% endif %} smtpd_tls_security_level = may smtpd_tls_exclude_ciphers = EXPORT, LOW, MEDIUM, aNULL, eNULL, DES, RC4, MD5 smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_dh1024_param_file = /etc/ssl/private/dhparams.pem smtpd_tls_CApath = /etc/ssl/certs/ smtpd_tls_session_cache_database= btree:$data_directory/smtpd_tls_session_cache smtpd_tls_received_header = yes smtpd_tls_ask_ccert = 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 # UCE control invalid_hostname_reject_code = 554 multi_recipient_bounce_reject_code = 554 non_fqdn_reject_code = 554 relay_domains_reject_code = 554 unknown_address_reject_code = 554 unknown_client_reject_code = 554 unknown_hostname_reject_code = 554 unknown_local_recipient_reject_code = 554 unknown_relay_recipient_reject_code = 554 unknown_virtual_alias_reject_code = 554 unknown_virtual_mailbox_reject_code = 554 unverified_recipient_reject_code = 554 unverified_sender_reject_code = 554 postscreen_blacklist_action = drop postscreen_dnsbl_threshold = 3 postscreen_dnsbl_action = enforce postscreen_dnsbl_sites = zen.spamhaus.org*3 swl.spamhaus.org*-4 b.barracudacentral.org*2 bl.spameatingmonkey.net*2 bl.spamcop.net dnsbl.sorbs.net list.dnswl.org=127.[0..255].[0..255].0*-2 list.dnswl.org=127.[0..255].[0..255].1*-3 list.dnswl.org=127.[0..255].[0..255].[2..255]*-4 postscreen_greet_action = enforce postscreen_whitelist_interfaces = !88.80.11.28 ![2a00:16b0:242:13::de30] 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 smtpd_relay_restrictions = permit_mynetworks reject_unauth_destination reject_unlisted_recipient smtpd_recipient_restrictions = reject_non_fqdn_recipient smtpd_data_restrictions = reject_unauth_pipelining # vim: set filetype=pfmain :