ns3.ledl.net has no MX records.
Question and response
Question
dig ns3.ledl.net. MX
Answer
The response has no answer records.
Authority
ledl.net. 300 SOA ns1.ledl.net. root.ledl.net. 2026012000 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0