emailtest.smtp.dk has no TXT records.
Question and response
Question
dig whitelabel.aboutmy.email. TXT
Answer
The response has no answer records.
Authority
aboutmy.email. 3600 SOA a.wordtothewise.com. steve.blighty.com. 15 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0