Postfix - Configuration (File, List and Default values)
Table of Contents
About
This article:
- talks about the configuration files
You should have at minimal a little bit of knowledge about the postfix architecture.
Articles Related
File
- /etc/postfix/main.cf where you define globally (the default configuration for all process)
- /etc/postfix/master.cf where every single running process is defined where you can overwrite the default option of main.cf
master.cf
The master.cf configuration file defines:
- how a client program connects to a service,
- what daemon program runs when a service is requested.
The general format of the master.cf file is as follows:
- Empty lines and whitespace-only lines are ignored, as are lines whose first non-whitespace character is a #.
- A logical line starts with non-whitespace text. A line that starts with whitespace continues a logical line.
- Each logical line defines a single Postfix service. Each service is identified by its name and type as described below.
When multiple lines specify the same service name and type, only the last one is remembered. Otherwise, the order of master.cf service definitions does not matter.
List
Output of the below command that gives all default postfix default configuration value
postconf -d
- 2bounce_notice_recipient = postmaster
- access_map_defer_code = 450
- access_map_reject_code = 554
- address_verify_default_transport = $default_transport
- address_verify_local_transport = $local_transport
- address_verify_map = btree:$data_directory/verify_cache
- address_verify_poll_count = ${stress?1}${stress:3}
- address_verify_relay_transport = $relay_transport
- address_verify_relayhost = $relayhost
- address_verify_sender = $double_bounce_sender
- address_verify_sender_dependent_default_transport_maps = $sender_dependent_default_transport_maps
- 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, nis:mail.aliases
- allow_mail_to_commands = alias, forward
- allow_mail_to_files = alias, forward
- allow_min_user = no
- allow_percent_hack = yes
- anvil_rate_time_unit = 60s
- anvil_status_update_time = 600s
- append_at_myorigin = yes
- append_dot_mydomain = yes
- application_event_drain_time = 100s
- authorized_flush_users = static:anyone
- authorized_mailq_users = static:anyone
- authorized_submit_users = static:anyone
- berkeley_db_create_buffer_size = 16777216
- berkeley_db_read_buffer_size = 131072
- biff = yes
- body_checks_size_limit = 51200
- bounce_notice_recipient = postmaster
- bounce_service_name = bounce
- bounce_size_limit = 50000
- canonical_classes = envelope_sender, envelope_recipient, header_sender, header_recipient
- cleanup_service_name = cleanup
- command_directory = /usr/sbin
- command_expansion_filter = [email protected]%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
- command_time_limit = 1000s
- config_directory = /etc/postfix
- connection_cache_service_name = scache
- daemon_directory = /usr/libexec/postfix
- daemon_timeout = 18000s
- data_directory = /var/lib/postfix
- debug_peer_level = 2
- default_database_type = hash
- 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_transport = smtp
- defer_code = 450
- defer_service_name = defer
- delay_notice_recipient = postmaster
- delay_warning_time = 0h
- deliver_lock_delay = 1s
- disable_dns_lookups = no
- disable_verp_bounces = no
- disable_vrfy_command = no
- dnsblog_reply_delay = 0s
- dnsblog_service_name = dnsblog
- dont_remove = 0
- double_bounce_sender = double-bounce
- duplicate_filter_limit = 1000
- empty_address_recipient = MAILER-DAEMON
- error_delivery_slot_cost = $default_delivery_slot_cost
- error_delivery_slot_discount = $default_delivery_slot_discount
- error_delivery_slot_loan = $default_delivery_slot_loan
- error_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
- error_destination_concurrency_limit = $default_destination_concurrency_limit
- error_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
- error_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
- error_destination_rate_delay = $default_destination_rate_delay
- error_destination_recipient_limit = $default_destination_recipient_limit
- error_extra_recipient_limit = $default_extra_recipient_limit
- error_initial_destination_concurrency = $initial_destination_concurrency
- error_minimum_delivery_slots = $default_minimum_delivery_slots
- error_notice_recipient = postmaster
- error_recipient_limit = $default_recipient_limit
- error_recipient_refill_delay = $default_recipient_refill_delay
- error_recipient_refill_limit = $default_recipient_refill_limit
- error_service_name = error
- execution_directory_expansion_filter = [email protected]%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
- expand_owner_alias = no
- export_environment = TZ MAIL_CONFIG LANG
- fast_flush_domains = $relay_domains
- fast_flush_refresh_time = 12h
- flush_service_name = flush
- fork_attempts = 5
- fork_delay = 1s
- forward_expansion_filter = [email protected]%-_=+:,./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_size_limit = 102400
- helpful_warnings = yes
- 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 = all
- ipc_idle = 5s
- ipc_timeout = 3600s
- ipc_ttl = 1000s
- line_length_limit = 2048
- lmtp_address_preference = any
- lmtp_assume_final = no
- lmtp_connect_timeout = 0s
- lmtp_data_done_timeout = 600s
- lmtp_data_init_timeout = 120s
- lmtp_data_xfer_timeout = 180s
- lmtp_delivery_slot_cost = $default_delivery_slot_cost
- lmtp_delivery_slot_discount = $default_delivery_slot_discount
- lmtp_delivery_slot_loan = $default_delivery_slot_loan
- 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_enforce_tls = no
- lmtp_extra_recipient_limit = $default_extra_recipient_limit
- lmtp_host_lookup = dns
- lmtp_initial_destination_concurrency = $initial_destination_concurrency
- lmtp_lhlo_name = $myhostname
- lmtp_lhlo_timeout = 300s
- lmtp_line_length_limit = 998
- lmtp_mail_timeout = 300s
- lmtp_minimum_delivery_slots = $default_minimum_delivery_slots
- lmtp_pix_workarounds = disable_esmtp,delay_dotcrlf
- lmtp_quit_timeout = 300s
- lmtp_randomize_addresses = yes
- lmtp_rcpt_timeout = 300s
- lmtp_recipient_limit = $default_recipient_limit
- lmtp_recipient_refill_delay = $default_recipient_refill_delay
- lmtp_recipient_refill_limit = $default_recipient_refill_limit
- lmtp_rset_timeout = 20s
- 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_skip_5xx_greeting = yes
- lmtp_starttls_timeout = 300s
- lmtp_tcp_port = 24
- lmtp_tls_ciphers = export
- lmtp_tls_dkey_file = $lmtp_tls_dcert_file
- lmtp_tls_eckey_file = $lmtp_tls_eccert_file
- lmtp_tls_key_file = $lmtp_tls_cert_file
- lmtp_tls_mandatory_ciphers = medium
- lmtp_tls_mandatory_protocols = !SSLv2
- lmtp_tls_protocols = !SSLv2
- lmtp_tls_secure_cert_match = nexthop
- lmtp_tls_session_cache_timeout = 3600s
- lmtp_tls_verify_cert_match = hostname
- lmtp_use_tls = no
- lmtp_xforward_timeout = 300s
- local_delivery_slot_cost = $default_delivery_slot_cost
- local_delivery_slot_discount = $default_delivery_slot_discount
- local_delivery_slot_loan = $default_delivery_slot_loan
- local_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
- 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_extra_recipient_limit = $default_extra_recipient_limit
- local_header_rewrite_clients = permit_inet_interfaces
- local_initial_destination_concurrency = $initial_destination_concurrency
- local_minimum_delivery_slots = $default_minimum_delivery_slots
- local_recipient_limit = $default_recipient_limit
- local_recipient_maps = proxy:unix:passwd.byname $alias_maps
- local_recipient_refill_delay = $default_recipient_refill_delay
- local_recipient_refill_limit = $default_recipient_refill_limit
- local_transport = local:$myhostname
- mail_name = Postfix
- mail_owner = postfix
- mail_release_date = 20130622
- mail_spool_directory = /var/mail
- mail_version = 2.10.1
- mailbox_delivery_lock = fcntl, dotlock
- mailbox_size_limit = 51200000
- mailq_path = /usr/bin/mailq
- manpage_directory = /usr/local/man
- maps_rbl_reject_code = 554
- masquerade_classes = envelope_sender, header_sender, header_recipient
- max_idle = 100s
- max_use = 100
- maximal_backoff_time = 4000s
- message_size_limit = 10240000
- milter_command_timeout = 30s
- milter_connect_macros = j {daemon_name} v
- milter_connect_timeout = 30s
- milter_content_timeout = 300s
- milter_default_action = tempfail
- 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} {mail_host} {mail_mailer}
- milter_protocol = 6
- milter_rcpt_macros = i {rcpt_addr} {rcpt_host} {rcpt_mailer}
- mime_boundary_length_limit = 2048
- mime_header_checks = $header_checks
- mime_nesting_limit = 100
- minimal_backoff_time = 300s
- mydestination = $myhostname, localhost.$mydomain, localhost
- mydomain = example.com
- myhostname = server01.example.com
- mynetworks = 127.0.0.0/8 [::1]/128 [fe80::]/64
- mynetworks_style = subnet
- myorigin = $myhostname
- nested_header_checks = $header_checks
- newaliases_path = /usr/bin/newaliases
- non_fqdn_reject_code = 504
- notify_classes = resource, software
- owner_request_special = yes
- parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps
- pickup_service_name = pickup
- plaintext_reject_code = 450
- postmulti_control_commands = reload flush
- postmulti_start_commands = start
- postmulti_stop_commands = stop abort drain quick-stop
- postscreen_access_list = permit_mynetworks
- postscreen_bare_newline_action = ignore
- postscreen_blacklist_action = ignore
- postscreen_cache_map = btree:$data_directory/postscreen_cache
- postscreen_client_connection_count_limit = $smtpd_client_connection_count_limit
- postscreen_command_time_limit = ${stress?10}${stress:300}s
- postscreen_disable_vrfy_command = $disable_vrfy_command
- postscreen_discard_ehlo_keyword_address_maps = $smtpd_discard_ehlo_keyword_address_maps
- postscreen_discard_ehlo_keywords = $smtpd_discard_ehlo_keywords
- postscreen_dnsbl_action = ignore
- postscreen_dnsbl_ttl = 1h
- postscreen_enforce_tls = $smtpd_enforce_tls
- postscreen_expansion_filter = $smtpd_expansion_filter
- postscreen_forbidden_commands = $smtpd_forbidden_commands
- postscreen_greet_action = ignore
- postscreen_greet_banner = $smtpd_banner
- postscreen_greet_ttl = 1d
- postscreen_greet_wait = ${stress?2}${stress:6}s
- postscreen_helo_required = $smtpd_helo_required
- postscreen_pipelining_action = enforce
- postscreen_post_queue_limit = $default_process_limit
- postscreen_pre_queue_limit = $default_process_limit
- postscreen_reject_footer = $smtpd_reject_footer
- postscreen_tls_security_level = $smtpd_tls_security_level
- postscreen_use_tls = $smtpd_use_tls
- postscreen_whitelist_interfaces = static:all
- prepend_delivered_header = command, file, forward
- process_id = 24236
- process_id_directory = pid
- process_name = postconf
- propagate_unmatched_extensions = canonical, virtual
- 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 $smtpd_sender_login_maps $sender_bcc_maps $recipient_bcc_maps $smtp_generic_maps $lmtp_generic_maps $alias_maps
- proxy_write_maps = $smtp_sasl_auth_cache_name $lmtp_sasl_auth_cache_name $address_verify_map $postscreen_cache_map
- proxymap_service_name = proxymap
- proxywrite_service_name = proxywrite
- qmgr_clog_warn_time = 300s
- qmgr_daemon_timeout = 1000s
- qmgr_fudge_factor = 100
- qmgr_ipc_timeout = 60s
- qmgr_message_active_limit = 20000
- qmgr_message_recipient_limit = 20000
- qmqpd_error_delay = 1s
- qmqpd_timeout = 300s
- queue_directory = /var/spool/postfix
- queue_minfree = 0
- queue_run_delay = 300s
- queue_service_name = qmgr
- readme_directory = no
- recipient_canonical_classes = envelope_recipient, header_recipient
- reject_code = 554
- reject_tempfail_action = defer_if_permit
- relay_delivery_slot_cost = $default_delivery_slot_cost
- relay_delivery_slot_discount = $default_delivery_slot_discount
- relay_delivery_slot_loan = $default_delivery_slot_loan
- 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_extra_recipient_limit = $default_extra_recipient_limit
- relay_initial_destination_concurrency = $initial_destination_concurrency
- relay_minimum_delivery_slots = $default_minimum_delivery_slots
- relay_recipient_limit = $default_recipient_limit
- relay_recipient_refill_delay = $default_recipient_refill_delay
- relay_recipient_refill_limit = $default_recipient_refill_limit
- relay_transport = relay
- reset_owner_alias = no
- resolve_dequoted_address = yes
- resolve_null_domain = no
- retry_delivery_slot_cost = $default_delivery_slot_cost
- retry_delivery_slot_discount = $default_delivery_slot_discount
- retry_delivery_slot_loan = $default_delivery_slot_loan
- retry_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
- retry_destination_concurrency_limit = $default_destination_concurrency_limit
- retry_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
- retry_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
- retry_destination_rate_delay = $default_destination_rate_delay
- retry_destination_recipient_limit = $default_destination_recipient_limit
- retry_extra_recipient_limit = $default_extra_recipient_limit
- retry_initial_destination_concurrency = $initial_destination_concurrency
- retry_minimum_delivery_slots = $default_minimum_delivery_slots
- retry_recipient_limit = $default_recipient_limit
- retry_recipient_refill_delay = $default_recipient_refill_delay
- retry_recipient_refill_limit = $default_recipient_refill_limit
- rewrite_service_name = rewrite
- sample_directory = /etc/postfix
- sender_canonical_classes = envelope_sender, header_sender
- sendmail_fix_line_endings = always
- sendmail_path = /usr/sbin/sendmail
- service_throttle_time = 60s
- setgid_group = postdrop
- showq_service_name = showq
- smtp_address_preference = any
- smtp_always_send_ehlo = yes
- smtp_connect_timeout = 30s
- smtp_data_done_timeout = 600s
- smtp_data_init_timeout = 120s
- smtp_data_xfer_timeout = 180s
- smtp_delivery_slot_cost = $default_delivery_slot_cost
- smtp_delivery_slot_discount = $default_delivery_slot_discount
- smtp_delivery_slot_loan = $default_delivery_slot_loan
- 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_enforce_tls = no
- smtp_extra_recipient_limit = $default_extra_recipient_limit
- smtp_fallback_relay = $fallback_relay
- smtp_helo_name = $myhostname
- smtp_helo_timeout = 300s
- smtp_host_lookup = dns
- smtp_initial_destination_concurrency = $initial_destination_concurrency
- smtp_line_length_limit = 998
- smtp_mail_timeout = 300s
- smtp_minimum_delivery_slots = $default_minimum_delivery_slots
- smtp_never_send_ehlo = no
- smtp_pix_workarounds = disable_esmtp,delay_dotcrlf
- smtp_quit_timeout = 300s
- smtp_randomize_addresses = yes
- smtp_rcpt_timeout = 300s
- smtp_recipient_limit = $default_recipient_limit
- smtp_recipient_refill_delay = $default_recipient_refill_delay
- smtp_recipient_refill_limit = $default_recipient_refill_limit
- smtp_rset_timeout = 20s
- 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_skip_5xx_greeting = yes
- smtp_skip_quit_response = yes
- smtp_starttls_timeout = 300s
- smtp_tls_ciphers = export
- smtp_tls_dkey_file = $smtp_tls_dcert_file
- smtp_tls_eckey_file = $smtp_tls_eccert_file
- smtp_tls_key_file = $smtp_tls_cert_file
- smtp_tls_mandatory_ciphers = medium
- smtp_tls_mandatory_protocols = !SSLv2
- smtp_tls_protocols = !SSLv2
- smtp_tls_secure_cert_match = nexthop, dot-nexthop
- 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_banner = $myhostname ESMTP $mail_name
- smtpd_client_event_limit_exceptions = ${smtpd_client_connection_limit_exceptions:$mynetworks}
- smtpd_delay_reject = yes
- smtpd_enforce_tls = no
- smtpd_expansion_filter = \t\40!“#$%&'()*+,-./0123456789:;⇔[email protected][\\]^_`abcdefghijklmnopqrstuvwxyz{|}~
- smtpd_forbidden_commands = CONNECT GET POST
- smtpd_hard_error_limit = ${stress?1}${stress:20}
- smtpd_helo_required = no
- smtpd_junk_command_limit = ${stress?1}${stress:100}
- smtpd_peername_lookup = yes
- smtpd_per_record_deadline = ${stress?yes}${stress:no}
- smtpd_policy_service_max_ttl = 1000s
- smtpd_policy_service_timeout = 100s
- smtpd_proxy_ehlo = $myhostname
- smtpd_proxy_timeout = 100s
- smtpd_recipient_limit = 1000
- smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination
- smtpd_sasl_path = smtpd
- smtpd_sasl_security_options = noanonymous
- smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
- smtpd_sasl_type = cyrus
- smtpd_service_name = smtpd
- smtpd_starttls_timeout = ${stress?10}${stress:300}s
- smtpd_timeout = ${stress?10}${stress:300}s
- smtpd_tls_ask_ccert = no
- smtpd_tls_auth_only = no
- smtpd_tls_ciphers = export
- smtpd_tls_dkey_file = $smtpd_tls_dcert_file
- smtpd_tls_eckey_file = $smtpd_tls_eccert_file
- smtpd_tls_eecdh_grade = strong
- smtpd_tls_key_file = $smtpd_tls_cert_file
- smtpd_tls_mandatory_ciphers = medium
- smtpd_tls_mandatory_protocols = !SSLv2
- smtpd_tls_req_ccert = no
- smtpd_tls_session_cache_timeout = 3600s
- smtpd_use_tls = no
- soft_bounce = no
- stale_lock_time = 500s
- stress =
- strict_7bit_headers = no
- strict_8bitmime = no
- strict_8bitmime_body = no
- strict_mailbox_ownership = yes
- swap_bangpath = yes
- syslog_facility = mail
- syslog_name = ${multi_instance_name:postfix}${multi_instance_name?$multi_instance_name}
- tcp_windowsize = 0
- tls_eecdh_strong_curve = prime256v1
- tls_eecdh_ultra_curve = secp384r1
- tls_export_cipherlist = aNULL:-aNULL:ALL:+RC4:@STRENGTH
- tls_high_cipherlist = aNULL:-aNULL:ALL:!EXPORT:!LOW:!MEDIUM:+RC4:@STRENGTH
- tls_low_cipherlist = aNULL:-aNULL:ALL:!EXPORT:+RC4:@STRENGTH
- tls_medium_cipherlist = aNULL:-aNULL: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
- tlsproxy_enforce_tls = $smtpd_enforce_tls
- tlsproxy_service_name = tlsproxy
- tlsproxy_tls_CAfile = $smtpd_tls_CAfile
- tlsproxy_tls_CApath = $smtpd_tls_CApath
- tlsproxy_tls_always_issue_session_ids = $smtpd_tls_always_issue_session_ids
- tlsproxy_tls_ask_ccert = $smtpd_tls_ask_ccert
- tlsproxy_tls_ccert_verifydepth = $smtpd_tls_ccert_verifydepth
- tlsproxy_tls_cert_file = $smtpd_tls_cert_file
- tlsproxy_tls_ciphers = $smtpd_tls_ciphers
- tlsproxy_tls_dcert_file = $smtpd_tls_dcert_file
- tlsproxy_tls_dh1024_param_file = $smtpd_tls_dh1024_param_file
- tlsproxy_tls_dh512_param_file = $smtpd_tls_dh512_param_file
- tlsproxy_tls_dkey_file = $smtpd_tls_dkey_file
- tlsproxy_tls_eccert_file = $smtpd_tls_eccert_file
- tlsproxy_tls_eckey_file = $smtpd_tls_eckey_file
- tlsproxy_tls_eecdh_grade = $smtpd_tls_eecdh_grade
- tlsproxy_tls_exclude_ciphers = $smtpd_tls_exclude_ciphers
- tlsproxy_tls_fingerprint_digest = $smtpd_tls_fingerprint_digest
- tlsproxy_tls_key_file = $smtpd_tls_key_file
- tlsproxy_tls_loglevel = $smtpd_tls_loglevel
- tlsproxy_tls_mandatory_ciphers = $smtpd_tls_mandatory_ciphers
- tlsproxy_tls_mandatory_exclude_ciphers = $smtpd_tls_mandatory_exclude_ciphers
- tlsproxy_tls_mandatory_protocols = $smtpd_tls_mandatory_protocols
- tlsproxy_tls_protocols = $smtpd_tls_protocols
- tlsproxy_tls_req_ccert = $smtpd_tls_req_ccert
- tlsproxy_tls_security_level = $smtpd_tls_security_level
- tlsproxy_tls_session_cache_timeout = $smtpd_tls_session_cache_timeout
- tlsproxy_use_tls = $smtpd_use_tls
- trace_service_name = trace
- transport_retry_time = 60s
- trigger_timeout = 10s
- unknown_address_tempfail_action = $reject_tempfail_action
- unknown_helo_hostname_tempfail_action = $reject_tempfail_action
- unverified_recipient_tempfail_action = $reject_tempfail_action
- unverified_sender_tempfail_action = $reject_tempfail_action
- verp_delimiter_filter = -=+
- virtual_alias_domains = $virtual_alias_maps
- virtual_alias_maps = $virtual_maps
- virtual_delivery_slot_cost = $default_delivery_slot_cost
- virtual_delivery_slot_discount = $default_delivery_slot_discount
- virtual_delivery_slot_loan = $default_delivery_slot_loan
- 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_extra_recipient_limit = $default_extra_recipient_limit
- virtual_initial_destination_concurrency = $initial_destination_concurrency
- virtual_mailbox_domains = $virtual_mailbox_maps
- virtual_mailbox_limit = 51200000
- virtual_mailbox_lock = fcntl, dotlock
- virtual_minimum_delivery_slots = $default_minimum_delivery_slots
- virtual_minimum_uid = 100
- virtual_recipient_limit = $default_recipient_limit
- virtual_recipient_refill_delay = $default_recipient_refill_delay
- virtual_recipient_refill_limit = $default_recipient_refill_limit
- virtual_transport = virtual