mow.gblnet.net has no MX records.
Question and response
Question
dig mow.gblnet.net. MX
Answer
The response has no answer records.
Authority
mow.gblnet.net. 86400 SOA ns.gblnet.ru. vvv.gblnet.ru. 2025122306 604800 86400 2419200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0