webmail.gshood.com has no CNAME records.
Question and response
Question
dig webmail.gshood.com. NS
Answer
The response has no answer records.
Authority
gshood.com. 10800 SOA ns1.gshood.com. admin.gshood.com. 202502003 3600 1800 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0