_dmarc.tailormadeservers.com has no CNAME records.
Question and response
Question
dig _dmarc.tailormadeservers.com. NS
Answer
The response has no answer records.
Authority
tailormadeservers.com. 10402 SOA ns.tailormadeservers.com. PostMaster.tailormadeservers.com. 2025120861 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0