smtp.e-mind.com has no CNAME records.
Question and response
Question
dig smtp.e-mind.com. NS
Answer
The response has no answer records.
Authority
e-mind.com. 3409 SOA dns.e-mind.com. domreg.e-mind.com. 2025110301 86400 7200 2592000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0