ae has no MX records.
Question and response
Question
dig ae. MX
Answer
The response has no answer records.
Authority
ae. 3600 SOA ns1.aedns.ae. dns.aeda.ae. 2013355423 10800 900 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0