_spf2.borezo.info has no CNAME records.
Question and response
Question
dig _spf2.borezo.info. NS
Answer
The response has no answer records.
Authority
borezo.info. 10800 SOA dns12.ovh.net. tech.ovh.net. 2026030600 86400 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0