Why does a non-delegated sub-domain work?

M. Meadows sun-guru at live.com
Mon May 7 16:32:06 UTC 2012

So ... if we have 
exacttarget.com delegated to ns1 and ns2.exacttarget.com nameservers
and ... we manage the s6.exacttarget.com zone file from ns1 and ns2.exacttarget.com 
but we don't delegate s6 in the exacttarget.com zone file ... forgot to enter it in the zone file ... 
how is it that s6.exacttarget.com and its contents resolve properly from everywhere?
Seems BIND is helping us out behind the scenes somehow. Right? 


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