The only Debian-specific command on the
Postfix Policyd - Zimbra :: Wiki page I see is the apt-get command to install the policyd binaries, which you have obtained from a different source.
The wiki mentions it briefly, but your biggest decision here is where to put the policyd database.
We don't use policyd, but I share your concern about hosting the policyd database in Zimbra's MySQL.
If it were me, I'd run a separate instance of the MySQL that comes with your distro to domicile the policyd database. That way, that instance will get patched from your distro's update channel and Zimbra's MySQL instance will remain "pure".
We've set up a number of LAMP servers where the developers need either multiple instances of the same MySQL binaries running on the same box, as well as multiple instances of different versions of MySQL on the same box (useful for testing database migrations to a new MySQL version).
There's documentation on how to do this at the MySQL site:
MySQL :: MySQL 5.0 Reference Manual :: 5.6.2 Running Multiple Servers on Unix should get you started for example.
Hope that helps,
Mark
__________________
___________________________________
L. Mark Stone, CIO
"Uptime. All the time."
477 Congress Street | Portland, ME 04101-3431 | (207) 772-5678
proactive maintenance and monitoring | technology consulting
Zimbra groupware | EMR implementations | private cloud hosting