mail1.jcwsoftware.com has no CNAME records.
Question and response
Question
dig mail1.jcwsoftware.com. NS
Answer
The response has no answer records.
Authority
jcwsoftware.com. 165 SOA ns-us.1and1-dns.com. hostmaster.1and1.com. 2016110344 28800 7200 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0