Dynamic DNS - Windows Server trying to update unwanted A records to BIND zone master

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http://serverfault.com – I have a Windows Server 2008R2 Active Directory and Exchange 2010 server (client access, hub transport and mailbox roles) in a primarily Linux server environment. A Linux server running BIND9 is master for all zones, including AD specific ones, with updates allowed from the Windows server (and from a separate Linux DHCP server). A linux/postfix mail transport acts as the domain MX server and a smart relay for the Exchange server. The Windows server is exchange.domain.tld (type= authoritative) but also has a type="internal relay" accepted domain within Exchange for domain.tld. THE PROBLEM: (HowTos)