smtpbe1.jos.com.hk has no MX records.
Question and response
Question
dig smtpbe1.jos.com.hk. MX
Answer
The response has no answer records.
Authority
jos.com.hk. 600 SOA ns1.josworld.com. postmaster.josworld.com. 2025092501 10800 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0