smtpd_banner = $myhostname ESMTP mail server biff = no append_dot_mydomain = no myhostname = {{ postfix_hostname }} alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = $myhostname mydestination = $myhostname localhost.localdomain localhost relayhost = mynetworks = 127.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = ipv4 disable_vrfy_command = yes # enable SSL/TLS client smtp_tls_security_level = may smtp_tls_mandatory_protocols=!SSLv2,!SSLv3 smtp_tls_protocols=!SSLv2,!SSLv3 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_tls_loglevel = 1 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination {% if postfix_slow_transport_include == True %} # Slow transports configuration minimal_backoff_time = 2h maximal_backoff_time = 6h maximal_queue_lifetime = 4d queue_run_delay = 100s bounce_queue_lifetime = 1d initial_destination_concurrency = 5 default_destination_concurrency_limit = 20 slow_destination_rate_delay = 0 slow_destination_concurrency_limit = 1 slow_destination_concurrency_failed_cohort_limit = 100 slow_destination_recipient_limit = 25 transport_maps = hash:$config_directory/transport {% endif %}