Mine

alias_database = hash:/etc/postfix/aliases
alias_maps = hash:/etc/postfix/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
default_destination_concurrency_limit = 2
default_transport = smtp
inet_protocols = ipv4, ipv6
local_destination_concurrency_limit = 2
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
mydestination = $myhostname
mydomain = neltia.net
myhostname = saris
mynetworks = 127.0.0.0/8 , 10.0.0.0/16
newaliases_path = /usr/bin/newaliases
readme_directory = /usr/share/doc/postfix-2.1.5-r2/readme
relay_domains = localhost
relayhost = smtp.comcast.net
sample_directory = /etc/postfix
sendmail_path = /usr/sbin/sendmail
setgid_group = postdrop
smtpd_client_restrictions = permit_mynetworks, hash:/etc/postfix/access, permit_sasl_authenticated
smtpd_helo_required = no
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated, check_relay_domains
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
smtpd_sender_restrictions = permit_mynetworks,hash:/etc/postfix/access,reject_unknown_sender_domain,permit_sasl_authenticated
unknown_local_recipient_reject_code = 550
unverified_recipient_reject_code = 450
virtual_alias_maps = ldap:aliases
virtual_gid_maps = static:800
virtual_mailbox_base = /
virtual_mailbox_domains = ldap:domains
virtual_mailbox_maps = ldap:accounts,ldap:alternate
virtual_transport = virtual
virtual_uid_maps = static:800