wcs.apex.dp.ua has no MX records.
Question and response
Question
dig wcs.apex.dp.ua. MX
Answer
The response has no answer records.
Authority
apex.dp.ua. 3600 SOA ns.apex.dp.ua. postmaster.apex.dp.ua. 2023022852 43200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0