mba.afrinic.net has no MX records.
Question and response
Question
dig mba.afrinic.net. MX
Answer
The response has no answer records.
Authority
mba.afrinic.net. 1800 SOA ns1.afrinic.net. dnsmasters.afrinic.net. 2025081800 1800 1800 1814400 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0