ns1.6level.net has no MX records.
Question and response
Question
dig ns1.6level.net. MX
Answer
The response has no answer records.
Authority
6level.net. 300 SOA ns1.6level.net. admin.6level.net. 2026022300 3600 300 2419200 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0