relay.a4mobility.it has no MX records.
Question and response
Question
dig relay.a4mobility.it. MX
Answer
The response has no answer records.
Authority
a4mobility.it. 172800 SOA ns1mi.infracom.it. sistemi.infracom.it. 2026021001 86400 7200 3628800 172800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0