Question and response
Question
dig pop.mta-3.com. NS
Answer
pop.mta-3.com. 5 CNAME mta-3.com.
mta-3.com. 5 NS pdns02.domaincontrol.com.
mta-3.com. 5 NS pdns01.domaincontrol.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0