webby.iwi.com.sg has no MX records.
Question and response
Question
dig webby.iwi.com.sg. MX
Answer
The response has no answer records.
Authority
iwi.com.sg. 3600 SOA names1.ds.network. dns.ds.network. 2019052901 7200 120 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0