my-out.ruweb.net has no MX records.
Question and response
Question
dig my-out.ruweb.net. MX
Answer
The response has no answer records.
Authority
ruweb.net. 3333 SOA ns61.ruweb.net. root.ruweb.net. 2020021130 14400 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0