_spf.ilait.net has no CNAME records.
Question and response
Question
dig _spf.ilait.net. NS
Answer
The response has no answer records.
Authority
ilait.net. 10800 SOA ns1.ilait.se. registry.ilait.se. 2025102200 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0