Okay, new to OpenLDAP, have managed to setup a meta backend/proxy to multiple Active Directory systems that is doing everything I need with one exception. I can't figure out a reliable way to filter out disabled accounts on the AD side. I know how to query this directly against AD of course (NOT UserAccountControl:1.2.840.113556.1.4.803:=2), but after a lot of searching and head scratching I'm not sure how to implement this in my slapd.conf - or even just allow the filter (if specified by a client) to pass through: