mx.nameweb.biz has no MX records.
Question and response
Question
dig mx.nameweb.biz. MX
Answer
The response has no answer records.
Authority
nameweb.biz. 901 SOA ns.nscluster.us. hostmaster.nscluster.us. 2026022601 7200 3600 1209600 901
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0