mail.hp.com CNAME DNS records

CNAME Canonical name

Apex domains cannot have CNAME records.

Question and response

Question

dig mail.hp.com. NS

Answer

mail.hp.com. 5 NS ns3.hp.com. mail.hp.com. 5 NS ns1.hp.com. mail.hp.com. 5 NS ns5.hp.com. mail.hp.com. 5 NS ns6.hp.com. mail.hp.com. 5 NS ns2.hp.com. mail.hp.com. 5 NS ns4.hp.com.

Authority

The response has no authority records.

Additional

ns1.hp.com. 4 A 15.72.96.180 ns2.hp.com. 4 A 15.72.32.180 ns3.hp.com. 4 A 15.90.180.180 ns4.hp.com. 4 A 15.90.164.180 ns5.hp.com. 4 A 15.89.160.180 ns6.hp.com. 4 A 15.89.164.180 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0