ansible/roles/mail/templates/postfix/main.cf.j2

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

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

inet_interfaces = all
inet_protocols = ipv4

message_size_limit = 50000000
recipient_delimiter = +

mydomain = {{ mail_domain }}
myhostname = {{ ansible_fqdn }}
myorigin = {{ ansible_fqdn }}
mydestination = localhost.{{ mail_domain }}, localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128

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

# TLS parameters
smtp_tls_security_level = may
smtp_tls_loglevel = 1

smtpd_tls_cert_file=/etc/postfix/ssl/{{ mail_server }}.crt
smtpd_tls_key_file=/etc/postfix/ssl/{{ mail_server }}.key
smtpd_tls_CAfile=/etc/acme/lets-encrypt-x3-cross-signed.pem
smtpd_tls_security_level = may
smtpd_tls_auth_only = yes
smtpd_tls_ciphers = medium
smtpd_tls_received_header = yes

smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache

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

smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous

smtpd_helo_restrictions = permit_mynetworks
                          warn_if_reject reject_non_fqdn_hostname
                          check_helo_access hash:/etc/postfix/helo_access
                          #check_client_access cidr:/etc/postfix/client_access

smtpd_recipient_restrictions = permit_mynetworks
                               permit_sasl_authenticated
                               reject_unauth_destination
                               reject_rbl_client sbl.spamhaus.org
                               reject_rbl_client cbl.abuseat.org
                               check_recipient_access hash:/etc/postfix/recipient_access

smtpd_data_restrictions = warn_if_reject reject_unauth_pipelining

smtpd_restriction_classes = greylisting

greylisting = check_policy_service unix:private/spfpolicy
              check_policy_service inet:127.0.0.1:10023

content_filter = amavis:[127.0.0.1]:10024
receive_override_options = no_address_mappings

virtual_mailbox_domains = {{ mail_domain }}
{%- for domain in mail_domains %}
 {{ domain }}
{%- endfor %}

virtual_mailbox_maps = ldap:/etc/postfix/ldap-virtual-maps.cf
virtual_alias_maps = hash:/etc/postfix/virtual-alias, ldap:/etc/postfix/ldap-aliases.cf

virtual_transport = dovecot
dovecot_destination_recipient_limit = 1

# mailman
relay_domains = {{ mailman_domain }}
relay_recipient_maps = hash:/var/lib/mailman/data/virtual-mailman
transport_maps = hash:/etc/postfix/transport
mailman_destination_recipient_limit = 1