mailhost3.akio.com has no TXT records.
Question and response
Question
dig mailhost3.akio.com. TXT
Answer
The response has no answer records.
Authority
akio.com. 300 SOA dns107.ovh.net. tech.ovh.net. 2026022600 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0