mail.servihosting.net has no CNAME records.
Question and response
Question
dig mail.servihosting.net. NS
Answer
The response has no answer records.
Authority
servihosting.net. 10800 SOA ns1.servihosting.com. hostmaster.servihosting.com. 2025082001 3600 7200 1209600 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0