maple.sover.net has no MX records.
Question and response
Question
dig maple.sover.net. MX
Answer
The response has no answer records.
Authority
sover.net. 60 SOA cns1.firstlight.net. hostmaster.sover.net. 2022081112 7200 1800 3600000 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0