content-h33.kiteworks.com has no CNAME records.
Question and response
Question
dig content-h33.kiteworks.com. NS
Answer
The response has no answer records.
Authority
kiteworks.com. 57 SOA dnsma.accellion.com. root.mail.accellion.com. 2026022304 28800 7200 604800 400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0