_dmarc.repsula.com has no CNAME records.
Question and response
Question
dig _dmarc.repsula.com. NS
Answer
The response has no answer records.
Authority
repsula.com. 3362 SOA ns1.tecnisoft.hn. info.tecnisoft.hn. 1615435420 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0