mail2.datahjaelp.net has no CNAME records.
Question and response
Question
dig mail2.datahjaelp.net. NS
Answer
The response has no answer records.
Authority
datahjaelp.net. 2218 SOA ns1.datahjaelp.net. domains.datahjaelp.net. 2026011602 7200 540 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0