mail2.liman.net has no CNAME records.
Question and response
Question
dig mail2.liman.net. NS
Answer
The response has no answer records.
Authority
liman.net. 300 SOA ns.cafax.se. hostmaster.cafax.se. 2026022600 28800 7200 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0