A quick list of differences from smap/smapd:
--------------------------------------------

smtpd/smtpfwdd will NOT run as root or gid 0, be sure that userid and 
groupid options are set

You need permit-hosts line for relays that are allowed to talk to proxy

smap patch by Jason R. Rhoads to block spam mail is compiled in by default.
maps-rbl and relay-domain support is temporary turned off because those are not 
really useful if you do manual permit-hosts control and only authorized 
relays are allowed to talk. So antispam options still in effect are:

spam-database
nospam ns-required,RFC821

See nospam.html for more information.

"exiting host=" syslog message changed to "exit host=", please update your
statistics gathering scripts.

smtpfwdd's default for "sendmail" is /usr/firewall/bin/ssmtp.

Missing "directory" is fwtkcfgerr.

