mail.bg CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig mail.bg. NS

Answer

mail.bg. 5 NS ns2.mail.bg. mail.bg. 5 NS ns.mail.bg.

Authority

The response has no authority records.

Additional

ns.mail.bg. 5 A 193.201.172.1 ns2.mail.bg. 5 A 193.201.172.2 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0