mail2.gastropoint.com has no CNAME records.
Question and response
Question
dig mail2.gastropoint.com. NS
Answer
The response has no answer records.
Authority
gastropoint.com. 211 SOA ns1.design69.net. hostmaster.design69.net. 2014071502 10800 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0