mailcleaner.sencinet.com has no TXT records.
Question and response
Question
dig mailcleaner.sencinet.com. TXT
Answer
The response has no answer records.
Authority
sencinet.com. 1800 SOA rex.ns.cloudflare.com. dns.cloudflare.com. 2397967139 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0