Question and response
Question
dig mx01.telus.net. NS
Answer
mx01.telus.net. 5 CNAME mx.telus.net.
Authority
telus.net. 1893 SOA dns24.telus.com. dnsadmin2.telus.com. 2018081064 900 7200 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0