One very minor thing i noticed here a couple weeks back. Can RDMS look for all of the below and consolidate them into a single user account?
[NETBIOS DOMAIN]\Username (eg. domain\user)
[FQDN]\Username (eg. domain.local\user)
Username@FQDN (eg. email@example.com)
I'm trying to remember, but I believe the username@FQDN it actually recognizes as valid credentials, but then creates a wholly separate account for it.
Subject:remove domain name from AD authentication