DNS suffix, DNS servers

Hello again Following up on the previous thread, I am looking for a possibility to assign different DNS servers and DNS suffixes to clients based on the Unix group they are in. I have found the MS-Primary-DNS-Server and MS-Secondary-DNS-Server attribute, which I assume will control the client's DNS server assignment, but I can't make out which attribute might contain the DNS suffix the client will get sent. Is there any? kind regards Markus