# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
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/{{ inventory_hostname }}_smtp.dh.pem
smtpd_tls_dh512_param_file = /etc/ssl/private/{{ inventory_hostname }}_smtp.dh.pem
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
{% if smtp_relay_host %}
smtp_tls_security_level=verify
smtp_tls_CAfile=/etc/ssl/certs/smtp_relay_truststore.pem
{% endif %}

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = {{ inventory_hostname }}
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = {{ inventory_hostname }}, {{ inventory_hostname_short }}, localhost.localdomain, localhost
relayhost = {{ smtp_relay_host }}{% if smtp_relay_host and smtp_relay_host_port %}:{{ smtp_relay_host_port }}{% endif %}{{ '' }}
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all

# Fall-back to using native lookups (/etc/hosts etc) if DNS lookup fails. Useful
# for local overrides of mail servers.
smtp_host_lookup = dns, native

# Explicitly set maximum allowed mail size that should be accepted.
message_size_limit = {{ mail_message_size_limit }}

# Allow relaying only from trusted networks. Do not relay mails for
# domains for which the mail server is not responsible.
smtpd_relay_restrictions = permit_mynetworks reject_unauth_destination