vm01.dimata.it has no MX records.
Question and response
Question
dig vm01.dimata.it. MX
Answer
The response has no answer records.
Authority
dimata.it. 1800 SOA anirban.ns.cloudflare.com. dns.cloudflare.com. 2396831516 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0