mail.lrz.de CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig mail.lrz.de. NS

Answer

mail.lrz.de. 5 NS dns2.lrz.de. mail.lrz.de. 5 NS dns1.lrz.de. mail.lrz.de. 5 NS dns3.lrz.de.

Authority

The response has no authority records.

Additional

dns1.lrz.de. 5 A 129.187.19.183 dns1.lrz.de. 5 AAAA 2001:4ca0:0:100:0:53:1:1 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0