mail.wifian.id has no MX records.
Question and response
Question
dig mail.wifian.id. MX
Answer
The response has no answer records.
Authority
wifian.id. 3600 SOA ns1.xconnect.id. hostmaster.wifian.id. 2026012503 3600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0