mail.interstudioviaggi.it has no CNAME records.
Question and response
Question
dig mail.interstudioviaggi.it. NS
Answer
The response has no answer records.
Authority
interstudioviaggi.it. 10800 SOA ns1.dnsitalia.net. info.interhost.it. 2025110401 3600 900 86400 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0