lumpy.jpmens.net has no MX records.
Question and response
Question
dig lumpy.jpmens.net. MX
Answer
The response has no answer records.
Authority
jpmens.net. 3600 SOA lumpy.jpmens.net. noc.jpmens.org. 12207 86400 7200 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0