sconn.swicktech.net has no MX records.
Question and response
Question
dig sconn.swicktech.net. MX
Answer
The response has no answer records.
Authority
swicktech.net. 180 SOA ns10.digicertdns.com. dns.digicertdns.com. 2009010176 43200 3600 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0