ns1.touchnet.com has no MX records.
Question and response
Question
dig ns1.touchnet.com. MX
Answer
The response has no answer records.
Authority
touchnet.com. 300 SOA ns1.touchnet.com. dnsadmin.touchnet.com. 2014041122 3600 600 1209600 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0