customer-132.eninetworks.com has no MX records.
Question and response
Question
dig customer-132.eninetworks.com. MX
Answer
The response has no answer records.
Authority
eninetworks.com. 3600 SOA dns.eninetworks.com. hostmaster.eninetworks.com. 2008101324 43200 720 2419200 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0