darksat.au.adp.com has no MX records.
Question and response
Question
dig darksat.au.adp.com. MX
Answer
The response has no answer records.
Authority
au.adp.com. 900 SOA dns1.p01.nsone.net. hostmaster.adp.com. 1687523794 43200 7200 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0