nsusa.comlaude.net has no MX records.
Question and response
Question
dig nsusa.comlaude.net. MX
Answer
The response has no answer records.
Authority
comlaude.net. 3600 SOA nsgbr.comlaude.co.uk. dnstech.comlaude.com. 1636543519 86400 7200 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0