mx7.com.psoft.tech has no CNAME records.
Question and response
Question
dig mx7.com.psoft.tech. NS
Answer
The response has no answer records.
Authority
tech. 468 SOA ns0.centralnic.net. hostmaster.centralnic.net. 1612892 900 1800 6048000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0