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myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

## Turning off the backwards-compatibility safety net
## http://www.postfix.org/COMPATIBILITY_README.html
compatibility_level = 2

## 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

## Max mail size in byte
message_size_limit = 36700160

## TLS parameters
smtpd_use_tls = yes
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/ssl/keyhelp/mail.pem
smtpd_tls_key_file = /etc/ssl/keyhelp/mail.pem
smtpd_tls_CAfile = /etc/ssl/keyhelp/mail-ca.crt
smtp_tls_CApath = /etc/ssl/certs
smtpd_tls_CApath = /etc/ssl/certs
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_mandatory_protocols = !SSLv2 !SSLv3
smtpd_tls_mandatory_protocols = !SSLv2 !SSLv3
smtp_tls_protocols = !SSLv2 !SSLv3
smtpd_tls_protocols = !SSLv2 !SSLv3
smtp_tls_security_level = may
smtpd_tls_security_level = may

## TLS cypher for PFS
smtp_tls_mandatory_ciphers = high
smtpd_tls_mandatory_ciphers = high
## medium for now, otherwise breakes with older SMTP
smtp_tls_ciphers = medium
smtpd_tls_ciphers = medium
smtpd_tls_dh1024_param_file = /etc/postfix/dh2048.pem
smtpd_tls_dh512_param_file = /etc/postfix/dh512.pem

## Dovecot Settings for deliver, SASL Auth and virtual transport
## uncomment those line to use Dovecot
mailbox_command = /usr/lib/dovecot/deliver

#dovecot_destination_recipient_limit = 1
#transport_maps = hash:/etc/postfix/transport
mailbox_transport = dovecot

smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth

myhostname = ##server.domain##
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = localhost, $myhostname
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 = ipv4

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

## Virtual domains, users, and aliases
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf

## Spam filter
content_filter = amavis:127.0.0.1:10024

## Concerning the peer
smtpd_soft_error_limit = 5
smtpd_error_sleep_time = 10s

smtpd_helo_required = yes

smtpd_client_restrictions =
    permit_mynetworks,
    permit_sasl_authenticated,
    reject_multi_recipient_bounce,
    reject_unauth_destination

smtpd_helo_restrictions =
    permit_mynetworks,
    permit_sasl_authenticated,
    # check_helo_access regexp:/etc/postfix/helo_access,
    reject_invalid_hostname,
    reject_non_fqdn_hostname

## Concerning the envelope
smtpd_sender_restrictions =
    permit_mynetworks,
    permit_sasl_authenticated,
    reject_non_fqdn_sender,
    reject_unauth_destination,
    reject_unknown_sender_domain,
    reject_unknown_client,
    reject_non_fqdn_hostname

smtpd_recipient_restrictions =
    permit_mynetworks,
    permit_sasl_authenticated,
    reject_unauth_destination,
    reject_unauth_pipelining,
    reject_non_fqdn_recipient,
    check_policy_service unix:private/policy
    # check_policy_service inet:127.0.0.1:10023

smtpd_recipient_limit = 50
smtpd_recipient_overshoot_limit = 50

## Header checks
header_checks = regexp:/etc/postfix/header_checks

## Mail filters (OpenDKIM)
milter_protocol = 6
milter_default_action = accept
smtpd_milters = inet:127.0.0.1:12345
non_smtpd_milters = inet:127.0.0.1:12345