mx3-r2.herosite.pro has no MX records.
Question and response
Question
dig mx3-r2.herosite.pro. MX
Answer
The response has no answer records.
Authority
herosite.pro. 86400 SOA ch1.herosite.pro. chinmay.milesweb.com. 2026021601 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0