ns2.awnet.cz has no MX records.
Question and response
Question
dig ns2.awnet.cz. MX
Answer
The response has no answer records.
Authority
awnet.cz. 3600 SOA ns1.awnet.cz. root.awnet.cz. 2026020301 86400 21600 1814400 86400
Additional
The response has no additional records.