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
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 defer_unauth_destination
myhostname = svgwma-kopa-02.XXXXXX.XXXXX.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = $myhostname, svgwma-kopa-02, localhost.localdomain, localhost
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

#Hinzugefuegt am 24.05.2018 durch WMA von alter Zarafa Konfiguration

smtpd_client_restrictions = permit_mynetworks
smtpd_recipient_restrictions = permit_mynetworks reject_invalid_hostname reject_unauth_destination reject_unknown_recipient_domain
delay_warning_time = 4h
unknown_local_recipient_reject_code = 450
maximal_queue_lifetime = 7d
minimal_backoff_time = 1000s
maximal_backoff_time = 8000s
smtpd_recipient_limit = 16
smtpd_soft_error_limit = 3
smtpd_hard_error_limit = 12

# relayhosting from provider when running dynamic IP; now we need sasl_auth
#relayhost = smtp.example.com
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/kopano/postfix/sasl_passwd
sender_dependent_relayhost_maps = hash:/etc/kopano/postfix/sender_relay
smtp_sasl_security_options = noanonymous
smtp_sender_dependent_authentication = yes
smtp_tls_enforce_peername = no
smtpd_tls_security_level = may