net.adp.com has no MX records.
Question and response
Question
dig net.adp.com. MX
Answer
The response has no answer records.
Authority
net.adp.com. 3600 SOA dns1.p01.nsone.net. hostmaster.nsone.net. 1770253949 43200 7200 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0