cloudspf3.metricstream.com has no CNAME records.
Question and response
Question
dig cloudspf3.metricstream.com. NS
Answer
The response has no answer records.
Authority
metricstream.com. 1671 SOA elle.ns.cloudflare.com. dns.cloudflare.com. 2397608486 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0