mx2.smartape.net has no TXT records.
Question and response
Question
dig mx2.smartape.net. TXT
Answer
The response has no answer records.
Authority
smartape.net. 3600 SOA ns3.smartape.net. abuse.smartape.net. 2013041697 3600 7200 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0