Mine

command_directory = /opt/local/sbin
config_directory = /opt/local/etc/postfix
content_filter = scan:[127.0.0.1]:10026
daemon_directory = /opt/local/libexec/postfix
debug_peer_level = 2
debug_peer_list = 192.168.15.100
default_privs = nobody
disable_dns_lookups = no
html_directory = no
mail_owner = postfix
mailq_path = /opt/local/bin/mailq
manpage_directory = /opt/local/share/man
mydomain = matzon.dk
myhostname = mini.matzon.dk
myorigin = $mydomain
newaliases_path = /opt/local/bin/newaliases
queue_directory = /opt/local/var/spool/postfix
readme_directory = /opt/local/share/postfix/readme
relay_domains =
relayhost = smtp.mail.dk
sample_directory = /opt/local/share/postfix/sample
sendmail_path = /opt/local/sbin/sendmail
setgid_group = postdrop
smtpd_banner = $myhostname.$mydomain ESMTP $mail_name ($mail_version)
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,        check_helo_access hash:/opt/local/etc/postfix/access,        permit
smtpd_recipient_restrictions = reject_invalid_hostname,        reject_unauth_pipelining,        reject_non_fqdn_sender,        reject_unknown_sender_domain,        reject_non_fqdn_recipient,        reject_unknown_recipient_domain,        permit_sasl_authenticated,        reject_unauth_destination,        reject_rbl_client sbl-xbl.spamhaus.org,        reject_rbl_client list.dsbl.org,        reject_rbl_client relays.ordb.org,        check_policy_service inet:127.0.0.1:10025,        permit
unknown_local_recipient_reject_code = 550
virtual_alias_maps = hash:/opt/local/etc/postfix/virtual
virtual_gid_maps = static:700
virtual_mailbox_base = /opt/local/var/spool/vmail
virtual_mailbox_domains = /opt/local/etc/postfix/vhost
virtual_mailbox_maps = hash:/opt/local/etc/postfix/vmaps
virtual_uid_maps = static:701