Something

command_directory = /usr/local/sbin
config_directory = /usr/local/etc/postfix
daemon_directory = /usr/local/libexec/postfix
debug_peer_level = 2
header_checks = regexp:/usr/local/etc/postfix/header_checks
html_directory = no
mail_owner = postfix
mailq_path = /usr/local/bin/mailq
manpage_directory = /usr/local/man
message_size_limit = 31457280
mynetworks = 10.0.0.23/32, 192.168.0.10/32, 192.168.0.13/32, 127.0.0.0/8
mynetworks_style = host
newaliases_path = /usr/local/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = no
relay_domains = /usr/local/etc/postfix/relays
sample_directory = /usr/local/etc/postfix
sendmail_path = /usr/local/sbin/sendmail
setgid_group = maildrop
smtpd_client_restrictions = permit_mynetworks,        check_client_access hash:/usr/local/etc/postfix/access,        permit
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks,       reject_unauth_destination,      check_policy_service inet:127.0.0.1:2501
transport_maps = hash:/usr/local/etc/postfix/transport
unknown_local_recipient_reject_code = 550