postalmta.rapidcompute.com has no TXT records.
Question and response
Question
dig postalmta.rapidcompute.com. TXT
Answer
The response has no answer records.
Authority
rapidcompute.com. 1800 SOA christian.ns.cloudflare.com. dns.cloudflare.com. 2397616357 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0