ns3.elkdata.net has no MX records.
Question and response
Question
dig ns3.elkdata.net. MX
Answer
The response has no answer records.
Authority
elkdata.net. 600 SOA ns.elkdata.ee. hostmaster.ns.elkdata.ee. 2025120301 10800 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0