gmo.ko-sokumail.net has no MX records.
Question and response
Question
dig gmo.ko-sokumail.net. MX
Answer
The response has no answer records.
Authority
ko-sokumail.net. 360 SOA zns01.data-hotel.net. hostmaster.data-hotel.net. 2025101001 1800 600 604800 3600
Additional
The response has no additional records.