ofpenguins.net has no MX records.
Question and response
Question
dig ofpenguins.net. MX
Answer
The response has no answer records.
Authority
ofpenguins.net. 600 SOA ns05.domaincontrol.com. dns.jomax.net. 2022091500 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0