mn.frontiernet.net has no TXT records.
Question and response
Question
dig mn.frontiernet.net. TXT
Answer
The response has no answer records.
Authority
mn.frontiernet.net. 21600 SOA auth.roch.ny.frontiernet.net. hostmaster.frontiernet.net. 2603030002 10800 3600 604800 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0