host4.dargalsolutions.com has no MX records.
Question and response
Question
dig host4.dargalsolutions.com. MX
Answer
The response has no answer records.
Authority
dargalsolutions.com. 600 SOA ns1.dargalsolutions.com. ian.dargal.com. 2016011202 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0