[Samba] IP address mnax count?

[Steve Thompson]

Samba 4.1.1, CentOS 6.6 x86_64, BIND_DLZ 9.9.

I have two Samba4 DC's, each of which has three IP addresses. However, the 
DNS translation of <samdom.example.com> only returns 5 results, not 6. It 
is not obvious (to me) why this should be so, and I'd like to get around 
that limit, as I'd like to add additional DC's (as a prelude to removing 
the first two). Any input would be appreciated.

Steve