main.cf

smtpd_banner = $myhostname
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

# TLS parameters
#smtpd_tls_cert_file = /etc/ssl/certs/ssl-mail.pem
#smtpd_tls_key_file = /etc/ssl/private/ssl-mail.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.

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
#myorigin = /etc/mailname
relay_domains =
relayhost =
local_recipient_maps =
#mynetworks = 127.0.0.0/8
#[::ffff:127.0.0.0]/104 [::1]/128
#mynetworks = 127.0.0.0/8, proxy:mysql:/etc/postfix/mysql-mynetworks.cf
mynetworks_style = host
mailbox_command =
mailbox_size_limit = 0512000000
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
home_mailbox = Maildir/
smtpd_sasl_auth_enable = yes
#smtpd_sasl_type = dovecot
#smtpd_sasl_path = private/dovecot-auth
smtpd_sasl_path = smtpd
smtpd_sasl_application_name = smtpd
smtpd_sasl_security_options = noanonymous noplaintext
#smtpd_sasl_authenticated_header = yes
#smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
broken_sasl_auth_clients = yes
#smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, regexp:/etc/postfix/helo.regexp, permit
smtpd_recipient_restrictions = permit_sasl_authenticated,reject_invalid_hostname,reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, permit_mynetworks,reject_unauth_destination, reject_rbl_client cbl.abuseat.org, reject_rbl_client sbl-xbl.spamhaus.org, reject_rbl_client bl.spamcop.net, reject_rhsbl_sender dsn.rfc-ignorant.org
smtpd_helo_restrictions = permit_mynetworks, reject_invalid_hostname, reject_unknown_helo_hostname, regexp:/etc/postfix/helo.regexp, permit
smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit
smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsb1.njab1.org,permit_mynetworks, permit_sasl_authenticated, permit
smtpd_data_restrictions = reject_unauth_pipelining
smtp_use_tls = yes
smtpd_use_tls = yes
smtpd_tls_received_header = yes
smtpd_tls_mandatory_protocols = SSLv3, TLSv1
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_auth_only = yes
tls_random_source = dev:/dev/urandom
maximal_queue_lifetime = 7d
minimal_backoff_time = 1000s
maximal_backoff_time = 8000s
smtp_helo_timeout = 60s
smtpd_recipient_limit = 16
smtpd_soft_error_limit = 3
smtpd_hard_error_limit = 12
smtpd_delay_reject = yes
smtpd_helo_required = yes
disable_vrfy_command = yes
strict_rfc821_envelopes = yes
unknown_address_reject_code  = 554

unknown_hostname_reject_code = 554

unknown_client_reject_code   = 554
smtp_tls_note_starttls_offer = yes
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.pem
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.pem
smtpd_tls_CAfile = /etc/postfix/ssl/smtpd.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom