proxmox02.kjsl.com has no MX records.
Question and response
Question
dig proxmox02.kjsl.com. MX
Answer
The response has no answer records.
Authority
kjsl.com. 300 SOA ns-global.kjsl.com. javier.kjsl.com. 2025101201 300 300 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0