# 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 (Ubuntu)
smtpd_banner = {{ local_smtpd_banner }}
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
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

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

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = {{ local_smtp_relay_hostname }}
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, localhost
relayhost = [{{ upstream_smtp_relay_server }}]:{{ upstream_smtp_relay_port }}
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
# inet_interfaces = loopback-only
inet_interfaces = all
inet_protocols = all

# http://www.postfix.org/SASL_README.html

smtpd_sasl_type = cyrus
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = smtpd

# https://wiki.debian.org/PostfixAndSASL
# smtpd authenticates users into aperture postfix

cyrus_sasl_config_path = /etc/postfix/sasl
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_security_options = noanonymous
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination

# https://www.linode.com/docs/email/postfix/postfix-smtp-debian7/

# smtp authenticates aperture postfix oubound/upstream to smtp2go

# enable SASL authentication
smtp_sasl_auth_enable = yes
# disallow methods that allow anonymous authentication.
smtp_sasl_security_options = noanonymous
# where to find sasl_passwd
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
# Enable STARTTLS encryption
smtp_use_tls = yes
# where to find CA certificates
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt


# Add users by using saslpasswd2
# https://www.planetcobalt.net/patrick.koetter/smtpauth/sasldb_configuration.html