ip28-53.hosting.astutium.com has no MX records.
Question and response
Question
dig ip28-53.hosting.astutium.com. MX
Answer
The response has no answer records.
Authority
hosting.astutium.com. 300 SOA ns1.this-dns.net. dns-soa.doesnotaccept.email. 2023062104 300 180 300 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0