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########################################################################
# MSA configuration
#
# {{ ansible_managed }}
# Do NOT edit this file directly!
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
readme_directory = no
mail_owner = postfix
delay_warning_time = 4h
maximal_queue_lifetime = 5d
myorigin = /etc/mailname
myhostname = smtp{{ mdano | default('') }}.$mydomain
mydomain = {{ ansible_domain }}
append_dot_mydomain = no
# Turn off all TCP/IP listener ports except that necessary for the MSA.
master_service_disable = !submission.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 Submission Agent
mynetworks_style = host
inet_interfaces = all
inet_protocols = 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 mailhub
{% if 'MTA-out' in group_names %}
relayhost = [127.0.0.1]:{{ MTA_out.port }}
{% else %}
relayhost = [{{ MTA_out.IPv4 }}]:{{ MTA_out.port }}
{% endif %}
relay_domains =
# 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
# Tolerate occasional high latency
smtp_data_done_timeout = 1200s
# Anonymize the (authenticated) sender; pass the mail to the antivirus
header_checks = pcre:$config_directory/anonymize_sender.pcre
#content_filter = amavisfeed:unix:public/amavisfeed-antivirus
# Tunnel everything through IPSec
smtp_tls_security_level = none
smtp_bind_address = 172.16.0.1
# TLS
smtpd_tls_security_level = encrypt
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_CApath = /etc/ssl/certs/
smtpd_tls_session_cache_database= btree:$data_directory/smtpd_tls_session_cache
smtpd_tls_received_header = yes
smtpd_tls_ask_ccert = yes
smtpd_tls_fingerprint_digest = sha1
smtpd_tls_eecdh_grade = strong
tls_random_source = dev:/dev/urandom
# SASL
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_local_domain =
smtpd_sasl_exceptions_networks = $mynetworks
smtpd_sasl_security_options = noanonymous, noplaintext
smtpd_sasl_tls_security_options = noanonymous
broken_sasl_auth_clients = no
smtpd_sasl_type = dovecot
smtpd_sasl_path = unix:private/dovecot-auth
strict_rfc821_envelopes = yes
smtpd_delay_reject = yes
disable_vrfy_command = yes
# UCE control
unknown_client_reject_code = 554
smtpd_client_restrictions =
permit_sasl_authenticated
reject
smtpd_helo_required = yes
smtpd_helo_restrictions =
reject_invalid_helo_hostname
smtpd_sender_restrictions =
reject_non_fqdn_sender
reject_unknown_sender_domain
smtpd_recipient_restrictions =
# RFC requirements
reject_non_fqdn_recipient
reject_unknown_recipient_domain
permit_mynetworks
permit_sasl_authenticated
reject_unauth_destination
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