mail2.hostsoln.com has no CNAME records.
Question and response
Question
dig mail2.hostsoln.com. NS
Answer
The response has no answer records.
Authority
hostsoln.com. 3551 SOA names1.ds.network. dns.ds.network. 2025110401 7200 120 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0