Smart Host FreeBSD

==== Required information ====
- iRedMail version (check /etc/iredmail-release):  0.93
- Linux/BSD distribution name and version: FREEBSD
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MYSQL
- Web server (Apache or Nginx):APACHE
- Manage mail accounts with iRedAdmin-Pro?no
- Related log if you're reporting an issue:
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Any one have a good tutorial on setting up a smarthost using FreeBSD?  I have scoured google and come up empty.  The ones for Debian work for Ubuntu but come with a Cyrus auth error when starting postfix on BSD.