# 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 http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
# fresh installs.
compatibility_level = 2



# TLS parameters
##### SmartMachine Begin.
#smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_cert_file=/etc/letsencrypt/live/%<fqdn>s/fullchain.pem
#smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_key_file=/etc/letsencrypt/live/%<fqdn>s/key.pem
smtpd_tls_security_level=may
smtpd_tls_auth_only=yes

smtpd_sasl_type=dovecot
smtpd_sasl_path=private/auth
smtpd_sasl_auth_enable=yes
smtpd_sasl_security_options=noanonymous, noplaintext
smtpd_sasl_tls_security_options=noanonymous

smtpd_sender_login_maps=mysql:/etc/postfix/mysql-sender-login-maps.cf
##### SmartMachine Close.

smtp_tls_CApath=/etc/ssl/certs
smtp_tls_security_level=may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

##### SmartMachine Begin.
smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname
smtpd_sender_restrictions = reject_sender_login_mismatch, permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unlisted_recipient, reject_unauth_destination, check_policy_service unix:private/policyd-spf, check_policy_service unix:private/quota-status
##### SmartMachine Close.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
##### SmartMachine Begin.
#myhostname = 3df7015f65ea
myhostname = %<fqdn>s
##### SmartMachine Close.
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
##### SmartMachine Begin.
mydomain = %<mailname>s
##### SmartMachine Close.
myorigin = $mydomain
##### SmartMachine Begin.
#mydestination = <mailname>, $myhostname, 3df7015f65ea, localhost.localdomain, localhost
mydestination = localhost
##### SmartMachine Close.
relayhost = 
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all

##### SmartMachine Begin.
# Handing off local delivery to Dovecot's LMTP, and telling it where to store mail
virtual_transport = lmtp:unix:private/dovecot-lmtp

# Virtual domains, users, and aliases
# Domains that are not aliases
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
# Users
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
# Domains that are aliases of other domains
virtual_alias_domains = mysql:/etc/postfix/mysql-virtual-alias-domains.cf
# Alias mappings for domains, users and users to themselves.
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps-domains.cf, mysql:/etc/postfix/mysql-virtual-alias-maps-masters.cf, mysql:/etc/postfix/mysql-virtual-alias-maps-users.cf, mysql:/etc/postfix/mysql-virtual-alias-maps-userstothemselves.cf

# Even more Restrictions and MTA params
disable_vrfy_command = yes
strict_rfc821_envelopes = yes
#smtpd_etrn_restrictions = reject
#smtpd_reject_unlisted_sender = yes
#smtpd_reject_unlisted_recipient = yes
smtpd_helo_required = yes
smtpd_timeout = 30s
smtp_helo_timeout = 15s
smtp_rcpt_timeout = 15s
smtpd_recipient_limit = 40
minimal_backoff_time = 180s
maximal_backoff_time = 3h

# Reply Rejection Codes
invalid_hostname_reject_code = 550
non_fqdn_reject_code = 550
unknown_address_reject_code = 550
unknown_client_reject_code = 550
unknown_hostname_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550

# SPF
# postfix-policyd-spf-python
policyd-spf_time_limit = 3600

# OpenDKIM
# Milter configuration
milter_default_action = accept
# Postfix >= 2.6 milter_protocol = 6, Postfix <= 2.5 milter_protocol = 2
milter_protocol = 6
smtpd_milters = local:opendkim/opendkim.sock
non_smtpd_milters = local:opendkim/opendkim.sock
##### SmartMachine Close.