relay-pl.advaix.net has no MX records.
Question and response
Question
dig relay-pl.advaix.net. MX
Answer
The response has no answer records.
Authority
advaix.net. 1800 SOA ns-us.wnet.pro. hostmaster.wnet.pro. 2026021805 1800 1800 2419200 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0