auth6.dns.datapointinc.net has no MX records.
Question and response
Question
dig auth6.dns.datapointinc.net. MX
Answer
The response has no answer records.
Authority
dns.datapointinc.net. 10 SOA auth1.dns.expedient.com. hostmaster.expedient.com. 2009060806 3600 900 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0