mx1.dfw.automattic.com has no TXT records.
Question and response
Question
dig mx1.dfw.automattic.com. TXT
Answer
The response has no answer records.
Authority
automattic.com. 60 SOA ns1.automattic.com. hostmaster.automattic.com. 2023091836 14400 7200 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0