filtered.junkemailfilter.com has no CNAME records.
Question and response
Question
dig filtered.junkemailfilter.com. NS
Answer
The response has no answer records.
Authority
filtered.junkemailfilter.com. 8902 SOA ns.reality-dns.com. hostmaster.junkemailfilter.com. 2019011009 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0