mx.waaf.net has no MX records.
Question and response
Question
dig mx.waaf.net. MX
Answer
The response has no answer records.
Authority
mx.waaf.net. 60 SOA ns2.waaf.net. hostmaster\@ns2.waaf.net. 2023090555 10800 3600 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0