Is it possible to disable the DeniedNotify ?

~ Yordi

Where can you find it ?

I can find most things I need using google. But I guess that's not the point.

List of commands an permissions: http://dev.bukkit.org/bukkit-plugins/ban-management/pages/commands-permissions/

If you have trouble setting permission nodes with your permission system, ask the respective developer for help.

Yes
Set these permissions to false/negate them:

      bm.notify.denied.player
      bm.notify.denied.ip