exchange.delska.com has no TXT records.
Question and response
Question
dig exchange.delska.com. TXT
Answer
The response has no answer records.
Authority
delska.com. 1800 SOA nola.ns.cloudflare.com. dns.cloudflare.com. 2398011899 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0