postfix/templates/main.cf.j2

# {{ ansible_managed }}
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
myhostname = {% if postfix_hostname is defined %}{{ postfix_hostname }}{% else %}{{ ansible_hostname }}{% endif %}

compatibility_level= {{ postfix_compatibility_level }}

myorigin = /etc/mailname
mydestination = $myhostname, localhost.$mydomain, localhost, {% if postfix_hostname is defined %}{{ postfix_hostname }}{% else %}{{ ansible_hostname }}{% endif %}
mynetworks_style = {{ postfix_mynetworks_style }}
mynetworks = {{ postfix_mynetworks | join(' ') }}
inet_interfaces = {{ postfix_inet_interfaces }}
inet_protocols = {{ postfix_inet_protocols }}

biff = no
append_dot_mydomain = no
append_at_myorigin = yes
readme_directory = no

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases

relayhost = {{ postfix_relayhost }}
smtpd_relay_restrictions = {{ postfix_smtpd_relay_restrictions|join(' ') }}
recipient_delimiter = {{ postfix_recipient_delimiter }}
mailbox_size_limit = {{ postfix_mailbox_size_limit }}
message_size_limit = {{ postfix_message_size_limit }}

{% if postfix_sasl_password_map is defined %}
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_tls_security_options = noanonymous
{% endif %}

smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_security_level = {{ postfix_smtp_tls_security_level }}
smtp_tls_ciphers = {{ postfix_smtp_tls_ciphers }}
smtp_tls_loglevel = {{ postfix_smtp_tls_loglevel }}
smtp_tls_protocols = {{ postfix_smtp_tls_protocols | join(', ') }}
smtp_tls_exclude_ciphers = {{ postfix_smtp_tls_exclude_ciphers | join(', ') }}

smtpd_use_tls=yes
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache

{% if postfix_sender_relay is defined %}
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
smtp_sender_dependent_authentication = yes
{% endif %}