Ah.... silly me... I was configuring the reverse zone file to return the FQDN.....
So, to achieve what I wrote this email thread initially, its a matter of changing the PTR line for this specific server/record, from
10 IN PTR ucm9pub.arda.inet.
to
10 IN PTR ucm9pub.
However, I got this fixed by doing a full restart of named instead of small reloads.
Turns out, the reply from BIND was appending the in.arpa-net to the FQDN, and here is where the other software was complaining. To avoid appending that suffix, there must be a dot at the end of
10 IN PTR ucm9pub.arda.inet.
However, for some reason it was there before, and the reloads were not applying it. I got it to work by using the above line and service named restart.
Thanks,