altmx.ptsi.net CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig altmx.ptsi.net. NS

Answer

altmx.ptsi.net. 5 NS ns1.ptsi.net. altmx.ptsi.net. 5 NS ns.ptsi.net.

Authority

The response has no authority records.

Additional

ns.ptsi.net. 4 A 65.79.197.98 ns1.ptsi.net. 4 A 65.79.193.9 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0