_spf.einfra.hu has no CNAME records.
Question and response
Question
dig _spf.einfra.hu. NS
Answer
The response has no answer records.
Authority
einfra.hu. 60 SOA ns2.iif.hu. hostmaster.iif.hu. 2026030501 10800 3600 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0