docker-mx-server/postfix/config/main.cf

# 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

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

mydomain = example.org
myhostname = mail.example.org
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = $mydomain
mydestination = localhost
relayhost = 
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all

recipient_bcc_maps = pgsql:/etc/postfix/pgsql_recipient_bcc.cf
transport_maps = pgsql:/etc/postfix/pgsql_transport.cf
virtual_mailbox_domains = pgsql:/etc/postfix/pgsql_virtual_mailbox_domains.cf
virtual_mailbox_maps = pgsql:/etc/postfix/pgsql_virtual_mailbox_maps.cf
virtual_alias_maps = pgsql:/etc/postfix/pgsql_virtual_alias_maps.cf,
                     pgsql:/etc/postfix/pgsql_virtual_alias_maps_regexp.cf,
                     pgsql:/etc/postfix/pgsql_virtual_alias_maps_alias.cf
relay_domains = pgsql:/etc/postfix/pgsql_relay_domains.cf
virtual_minimum_uid=100
virtual_uid_maps=static:7788
virtual_gid_maps=static:7788
virtual_transport=dovecot_24
dovecot_destination_recipient_limit = 1


smtpd_tls_cert_file=/etc/ssl/private/mail.crt
smtpd_tls_key_file=/etc/ssl/private/mail.key
smtpd_tls_CAfile=/etc/ssl/private/mail-chain.crt
smtp_tls_CAfile=/etc/ssl/private/mail-chain.crt
smtp_use_tls=yes
smtpd_use_tls=yes
smtpd_tls_loglevel=1
smtpd_tls_received_header=yes
tls_random_source=dev:/dev/urandom
smtp_tls_note_starttls_offer=no
smtpd_tls_session_cache_timeout=3600s
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
queue_directory=/var/spool/postfix


smtpd_sasl_type=dovecot
smtpd_sasl_path=dovecot_12345
smtpd_sasl_auth_enable=yes
broken_sasl_auth_clients=yes
smtpd_sasl_security_options=noanonymous
smtpd_sasl_tls_security_options=$smtpd_sasl_security_options
smtpd_sasl_local_domain=$myhostname
smtpd_helo_required=yes
smtpd_helo_restrictions=reject_invalid_helo_hostname
smtpd_recipient_restrictions=permit_mynetworks,
        permit_sasl_authenticated,
        reject_unknown_recipient_domain,
        reject_unauth_pipelining,
        reject_unauth_destination

message_size_limit = 0

milter_default_action = accept
milter_protocol = 6
smtpd_milters = opendkim_12345
non_smtpd_milters = opendkim_12345
smtpd_relay_restrictions = permit_mynetworks,
        permit_sasl_authenticated,
        reject_unknown_recipient_domain,
        reject_unauth_pipelining,
        reject_unauth_destination