main.cf

smtpd_banner = $myhostname Poczta $mail_name (Slackware)
biff = no
append_dot_mydomain = no
# TLS parameters
home_mailbox = Maildir/
smtpd_tls_auth_only = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_cert_file=/etc/postfix/ssl/smtpd.pem
smtpd_tls_key_file=/etc/postfix/ssl/smtpd.pem
smtpd_tls_CAfile =/etc/postfix/ssl/smtpd.pem
smtp_use_tls = yes
smtpd_use_tls=yes
smtpd_tls_received_header = yes
smtpd_tls_session_cashe_timeout = 3600s
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_sasl_authenticated_header = yes
myhostname = localhost
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost, localdomain
mynetworks = 192.168.1.0/24 127.0.0.0/8
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
broken_sasl_auth_clients = yes
smtp_tls_loglevel=1
smtp_tls_security_level=encrypt
smtp_sasl_auth_enable=yes
smtp_sasl2_auth_enable=yes
broken_sasl_auth_clients=yes
smtp_sasl_local_domain=$myhostname
smtp_sasl_password_maps=hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtp_generic_maps=hash:/etc/postfix/generic
relayhost=[example.org]:587
smtpd_sasl_local_domain =$myhostname
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_path = smtpd
mailbox_command = procmail -a "$EXTENSION"
tls_random_source = dev:/dev/urandom
sender_bcc_maps = hash:/etc/postfix/bcc_maps
recipient_bcc_maps = hash:/etc/postfix/bcc_maps