ns3.hosting90.net has no MX records.
Question and response
Question
dig ns3.hosting90.net. MX
Answer
The response has no answer records.
Authority
hosting90.net. 3600 SOA ns1.hosting90.cz. admin.hosting90.cz. 2026021803 7200 1200 1209600 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0