2D203.demax.sk has no MX records.
Question and response
Question
dig 2D203.demax.sk. MX
Answer
The response has no answer records.
Authority
demax.sk. 400 SOA ns1.demax.sk. hostmaster.demax.sk. 2026012701 21600 1800 2419200 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0