dns3.avalon.net has no MX records.
Question and response
Question
dig ns3.lightedge.com. MX
Answer
The response has no answer records.
Authority
lightedge.com. 30 SOA ns1.lightedge.com. hostmaster.lightedge.com. 2026022705 10800 1800 10800 30
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0