neusentry.org has no MX records.
Question and response
Question
dig neusentry.org. MX
Answer
The response has no answer records.
Authority
neusentry.org. 86400 SOA udns1.ultradns.net. networkers.neustar.biz. 1302533501 86400 86400 86400 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0