mail.binbox.email has no CNAME records.
Question and response
Question
dig mail.binbox.email. NS
Answer
The response has no answer records.
Authority
binbox.email. 3600 SOA ns1.pointerns.com. hostmaster.pointerns.com. 2026022501 10800 1800 691200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0