mx02.netcarrier.net has no TXT records.
Question and response
Question
dig mx02.netcarrier.net. TXT
Answer
The response has no answer records.
Authority
netcarrier.net. 10800 SOA ns1.netcarrier.net. postmaster.netcom.netcarrier.com. 2026030501 500 300 3600000 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0