ns3.hukot.cz has no MX records.
Question and response
Question
dig ns3.hukot.cz. MX
Answer
The response has no answer records.
Authority
hukot.cz. 360 SOA ns1.ignum.eu. root.ignum.eu. 2026030201 5000 1800 604800 360
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0