# See /usr/share/postfix/main.cf.dist for a commented, more complete version
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
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

# local domains
myhostname = relay.zntrl.de
mydestination = 
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
alias_maps = hash:/etc/postfix/aliases

# relay domains
relay_domains = zntrl.de baldev.de
relay_transport = smtp:[baloghs.de]:8025
# more flexible relay_transport
# transport_maps = hash:/etc/postfix/transport

# virtual domains
virtual_alias_maps = hash:/etc/postfix/virtual

# default domains
default_transport = smtp:

# SMPTD (inbound) TLS parameters
smtpd_tls_CApath = /etc/ssl/certs
smtpd_tls_CAfile = /usr/local/share/ca-certificates/kopano-ca.crt
smtpd_tls_key_file=/etc/ssl/private/relay.key
smtpd_tls_cert_file=/etc/ssl/relay-full-chain.pem
smtpd_tls_security_level=may
smtpd_tls_loglevel = 1

smtpd_relay_restrictions = permit_mynetworks reject_unauth_destination
# smtpd_helo_restrictions = reject_unknown_helo_hostname
# smtpd_sender_restrictions = reject_unknown_sender_domain
# smtpd_data_restrictions = reject_unauth_pipelining
# smtpd_end_of_data_restrictions = check_policy_service unix:private/policy

# SMTP (outbound)
smtp_tls_CApath=/etc/ssl/certs
smtp_tls_key_file=/etc/ssl/private/relay.key
smtp_tls_cert_file=/etc/ssl/relay-full-chain.pem
smtp_tls_security_level=may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_loglevel = 1

mailbox_size_limit = 0
message_size_limit = 50000000
recipient_delimiter = +
inet_interfaces = all
inet_protocols = ipv4
# maillog_file = /var/log/postfix.log