smtp2.bibits.no has no CNAME records.
Question and response
Question
dig smtp2.bibits.no. NS
Answer
The response has no answer records.
Authority
bibits.no. 900 SOA dns1.mikromarc.no. hostmaster.dns1.mikromarc.no. 2025052700 7200 1800 1209600 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0