secdns.starhub.net.sg has no MX records.
Question and response
Question
dig secdns.starhub.net.sg. MX
Answer
The response has no answer records.
Authority
starhub.net.sg. 600 SOA pricus.starhub.net.sg. noc.starhub.net.sg. 2011042416 10800 3600 1209600 600
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0