[Samba] lost rfc2307 settings in AD Manager.

[L.P.H. van Belle]

On my DC at creation, i created my domain with the following line: 
 
samba-tool domain provision --use-rfc2307 --use-xattrs=yes --realm= ... etc etc. 
 
and it created smb.conf with.  
idmap_ldb:use rfc2307 = yes
 
But when i now look in my AD User manager, no NIS options anymore. 
 
Is there a possibility to add it again? 
and can this be caused my the zarafa schema import ? 
 
I use this one for the zarafa schema update. 
 
zarafa_schema_add.sh DC=INTERNAL,DC=DOMAIN,DC=TLD /etc/samba/bin/schema/7.1.9/ \
 -v -H /var/lib/samba/private/sam.ldb -writechanges