auth2.oriontelekom.com has no MX records.
Question and response
Question
dig auth2.oriontelekom.com. MX
Answer
The response has no answer records.
Authority
oriontelekom.com. 300 SOA AUTH1.oriontelekom.com. admin.sezamhosting.com. 2022071202 7200 1800 1209600 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0