Question and response
Question
dig mx1.fing.uncu.edu.ar. NSEC3PARAM
Answer
mx1.fing.uncu.edu.ar. 5 CNAME www.fing.uncu.edu.ar.
Authority
fing.uncu.edu.ar. 300 SOA ns1.fing.uncu.edu.ar. hostmaster.fing.uncu.edu.ar. 5029 300 300 300 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0