mx4.wiline.com has no TXT records.
Question and response
Question
dig mx4.wiline.com. TXT
Answer
The response has no answer records.
Authority
wiline.com. 300 SOA ns1.wiline.com. hostmaster.wiline.com. 2026022601 10800 3600 1814400 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0