spf.clouditalia.com has no CNAME records.
Question and response
Question
dig spf.clouditalia.com. NS
Answer
The response has no answer records.
Authority
clouditalia.com. 10527 SOA mnt1.eutelia.it. hostmaster.eutelia.it. 2026021600 86400 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0