########################################################################
# Webmail 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          = webmail{{ webmailno | default('') }}.$mydomain
mydomain            = {{ ansible_domain }}
append_dot_mydomain = no

# Turn off all TCP/IP listener ports except that necessary for the webmail.
master_service_disable = !127.0.0.1:2580.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 nullclient 
mynetworks_style = host
inet_interfaces  = loopback-only
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.host }}]:{{ MTA_out.port }}
{% endif %}
relay_domains =

# Don't rewrite remote headers
local_header_rewrite_clients     =
# Avoid splitting the envelope and scanning messages multiple times
smtp_destination_recipient_limit = 1000
# Tolerate occasional high latency
smtp_data_done_timeout           = 1200s

# Pass the mail to the antivirus
#content_filter = amavisfeed:unix:public/amavisfeed-antivirus

# Tunnel everything through IPSec
smtp_tls_security_level  = none
{% if 'MTA-out' in group_names %}
smtp_bind_address        = 127.0.0.1
{% else %}
smtp_bind_address        = 172.16.0.1
{% endif %}
smtpd_tls_security_level = none


strict_rfc821_envelopes = yes
smtpd_delay_reject      = yes
disable_vrfy_command    = yes

# UCE control
unknown_client_reject_code = 554

smtpd_client_restrictions =
    permit_mynetworks
    reject

smtpd_helo_required     = yes
smtpd_helo_restrictions =
    permit_mynetworks
    reject_non_fqdn_helo_hostname
    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
    reject

smtpd_data_restrictions =
    reject_unauth_pipelining